Does temperature affect the viscosity of oil?
Why is it thinner when it's hot.. and vice versa.
Explain what happens to the particles etc.
THANKS!!Does temperature affect the viscosity of oil? If so how?
http://www.autoeducation.com/autoshop101鈥?/a>
http://www.scienceproject.com/projects/i鈥?/a>
these 2 should do it for you. lots more where they came fromDoes temperature affect the viscosity of oil? If so how?
Yes temperature effects the viscosity.of oil
Oil is thinner when heated because the molecules are moving faster and taking up more space.
When cold the oil contracts and the molecules are moving slower
Wednesday, April 28, 2010
What is the viscosity of mobil shc 634 synthetic oil?
The viscosity is 161. ';Mobil SHC 634 (ISO 460) synthetic gear oil is the ultimate worm drive gearbox lubricant. SHC 634 will greatly extend worm gearbox life. The gearbox will run cooler, easier, with reduced power loss. Sold in 5 gallon pails.';
What is the viscosity of corn syrup and vegetable oil?
Here are some links that should tell you.blemishes
What oil viscosity should I use for my 96 VW GTI? What about gear oil?
I have a 96 VW GTI VR6 with about 90,000 milesWhat oil viscosity should I use for my 96 VW GTI? What about gear oil?
10 30 for your engine and 80 90 for your gear oilWhat oil viscosity should I use for my 96 VW GTI? What about gear oil?
if the manufacturer says on the car manual use 5w30 that's the oil you have to use no matter the age of the car or the millage
is a myth that you have to use a higher grade oil when engines get old or get high millage
so read the car manual and use the oil it says
if you use gear oil on the engine you will kill it instantly because gear oil are used to lubricate not eliminate friction like engine oil do
W10-30 should do it or check your owners manual!!
look in owners manual
10 30 for your engine and 80 90 for your gear oilWhat oil viscosity should I use for my 96 VW GTI? What about gear oil?
if the manufacturer says on the car manual use 5w30 that's the oil you have to use no matter the age of the car or the millage
is a myth that you have to use a higher grade oil when engines get old or get high millage
so read the car manual and use the oil it says
if you use gear oil on the engine you will kill it instantly because gear oil are used to lubricate not eliminate friction like engine oil do
W10-30 should do it or check your owners manual!!
look in owners manual
I have a 1994 caprice, 5.7l tpi, 120,000 miles, runs good, What would be the best type and viscosity of oil ?
To start using in this car, for the longest rest of its life?, Oil, Filter,?, I live in OregonI have a 1994 caprice, 5.7l tpi, 120,000 miles, runs good, What would be the best type and viscosity of oil ?
Oh my gosh, you live in outreaches of Oregon and the guy above advised 40W? *Not in your lifetime. The factory recommended oil to use is 5W-30 year round. You can't beat AC-Delco, NAPA (made by Wix) or Wix by name oil filters.
I can imagine you have wide temperature swings. 5W-30 allows the oil pump to force the greatest *volume of oil to frictional surfaces quickly. Hot or cold start-up is where 80% of engine wear occurs. It's to your motors advantage to receive instant lubrication instead of an oil pan filled with ';molasses'; - 40W.
Light oil, (5W-30) also cools internal engine parts faster and more efficiently than heavy thick oil.I have a 1994 caprice, 5.7l tpi, 120,000 miles, runs good, What would be the best type and viscosity of oil ?
http://thisinall.ctoab.com
A very informative website, kindly stay a minute in website and check
40w
Oh my gosh, you live in outreaches of Oregon and the guy above advised 40W? *Not in your lifetime. The factory recommended oil to use is 5W-30 year round. You can't beat AC-Delco, NAPA (made by Wix) or Wix by name oil filters.
I can imagine you have wide temperature swings. 5W-30 allows the oil pump to force the greatest *volume of oil to frictional surfaces quickly. Hot or cold start-up is where 80% of engine wear occurs. It's to your motors advantage to receive instant lubrication instead of an oil pan filled with ';molasses'; - 40W.
Light oil, (5W-30) also cools internal engine parts faster and more efficiently than heavy thick oil.I have a 1994 caprice, 5.7l tpi, 120,000 miles, runs good, What would be the best type and viscosity of oil ?
http://thisinall.ctoab.com
A very informative website, kindly stay a minute in website and check
40w
How does temperature of oil affect its viscosity?
plz i have to make a report a bout this but i dono nothing i need ur help guys plz. and quickly plzHow does temperature of oil affect its viscosity?
-When a substance (any substance, not just oil) is heated the viscosity of the substance decreases
-When a substance is cooled the viscosity of the substance increases (it gets stickier)How does temperature of oil affect its viscosity?
as Victor says, and with oil, (for full marks) you need to explain VI
or
viscosity index
also see
http://en.wikipedia.org/wiki/Viscosity_i鈥?/a>
.
-When a substance (any substance, not just oil) is heated the viscosity of the substance decreases
-When a substance is cooled the viscosity of the substance increases (it gets stickier)How does temperature of oil affect its viscosity?
as Victor says, and with oil, (for full marks) you need to explain VI
or
viscosity index
also see
http://en.wikipedia.org/wiki/Viscosity_i鈥?/a>
.
97 honda valkyrie,hot southern climate ,oil viscosity suggestions?
97 valkyrie purchased this spring,absolutely love it.live in central texas,hot summers,any suggestions on oil types,viscositys?97 honda valkyrie,hot southern climate ,oil viscosity suggestions?
Of all motorcycles,,the Valkyrie is probly the Mother of all ';Oil Controversies';.
The things have been so reliable,,and rolled up so many miles,,,it's easy to come to the conclusion that it really doesn't much matter What oil is used.
Me personally,,I do not understand the rationale of trying to save $10~15~20 per oil change,,for 2~3 ~4 oil changes Annually.
On the OTHER Hand,,,,there's a Group of Premium Oils which range in price from about $5qt to over $25qt.
Once it's understood what Extreme,Vast ';Overkill'; ALLLL of those oils are,,,it makes as little sense to spend Too Much as it does to try to Save $20/Year.
......................................鈥?br>
Mobil 1 Synthetics have such wide temp range,,they are good at:
a)almost TWICE the temp your engine Can even run at(450~500+ *F)
%26amp;
b)temps Colder than you can even humanly function at to Ride.(Below -40~50~60*F)
You can run Same oil,,Year Round,,anywhere on Earth,and be 200% Confident that Oil is the Least of your worries,,,actually No Concern at all.
Mobil 1 has a 20w~50 ';V-Twin'; Motorcycle -Specific oil which is exceptionally Good.
It's Pricey,,and can be a bit sketchy to find.
They also have a 15w-50 ';Car Oil'; which is perfectly fine for use in motorcycles.
Overall,,,all things considered,,,it may well be THE Best Choice ,
Starting with the fact that it's among the Cheapest of all premium oils,,
and it's regular stock at Wal-Mart.....as well as most any place that stocks Mobil 1.
I'm no big fan of Wal-Mart,,,,but in this case what it means is that YOUR OIL is available ';24/7/365'; practically ANYWHERE you happen to find yourself needing oil.
Thats what my Best Suggestion would be
Mobil 1 15w-50
http://www.mobil1.com/USA-English/MotorO鈥?/a>
......................................鈥?br>
You also have ';rear end'; oil to consider.
Belray Gearsaver Hypoid Oil,,80w~90
Most bike shops have it97 honda valkyrie,hot southern climate ,oil viscosity suggestions?
Its water cooled, its a Honda.... you should use a high quality oil anyway. But you ain't gonna get this bike hot.. ever. Yes its a monster, but its a beautiful monster. Its not gonna give you one bit of heat related problems. Even if you were in my neck o' the woods (Corpus).
Check the manual, but guessing at 20W/50
Of all motorcycles,,the Valkyrie is probly the Mother of all ';Oil Controversies';.
The things have been so reliable,,and rolled up so many miles,,,it's easy to come to the conclusion that it really doesn't much matter What oil is used.
Me personally,,I do not understand the rationale of trying to save $10~15~20 per oil change,,for 2~3 ~4 oil changes Annually.
On the OTHER Hand,,,,there's a Group of Premium Oils which range in price from about $5qt to over $25qt.
Once it's understood what Extreme,Vast ';Overkill'; ALLLL of those oils are,,,it makes as little sense to spend Too Much as it does to try to Save $20/Year.
......................................鈥?br>
Mobil 1 Synthetics have such wide temp range,,they are good at:
a)almost TWICE the temp your engine Can even run at(450~500+ *F)
%26amp;
b)temps Colder than you can even humanly function at to Ride.(Below -40~50~60*F)
You can run Same oil,,Year Round,,anywhere on Earth,and be 200% Confident that Oil is the Least of your worries,,,actually No Concern at all.
Mobil 1 has a 20w~50 ';V-Twin'; Motorcycle -Specific oil which is exceptionally Good.
It's Pricey,,and can be a bit sketchy to find.
They also have a 15w-50 ';Car Oil'; which is perfectly fine for use in motorcycles.
Overall,,,all things considered,,,it may well be THE Best Choice ,
Starting with the fact that it's among the Cheapest of all premium oils,,
and it's regular stock at Wal-Mart.....as well as most any place that stocks Mobil 1.
I'm no big fan of Wal-Mart,,,,but in this case what it means is that YOUR OIL is available ';24/7/365'; practically ANYWHERE you happen to find yourself needing oil.
Thats what my Best Suggestion would be
Mobil 1 15w-50
http://www.mobil1.com/USA-English/MotorO鈥?/a>
......................................鈥?br>
You also have ';rear end'; oil to consider.
Belray Gearsaver Hypoid Oil,,80w~90
Most bike shops have it97 honda valkyrie,hot southern climate ,oil viscosity suggestions?
Its water cooled, its a Honda.... you should use a high quality oil anyway. But you ain't gonna get this bike hot.. ever. Yes its a monster, but its a beautiful monster. Its not gonna give you one bit of heat related problems. Even if you were in my neck o' the woods (Corpus).
Check the manual, but guessing at 20W/50
I have a 2002 Trans Am with 500hp and I only drive it in the summer, what kind of oil and viscosity to use?
I would use mobil 1 synthetic 5w-30 or 10w-30.I have a 2002 Trans Am with 500hp and I only drive it in the summer, what kind of oil and viscosity to use?
You need to find out if your oil is synthetic or not. With the year and make of your car I would assume it is synthetic. When you look at oil there are 2 number ie. 5W-30. The first number is the viscosity at a cold temp and the second number is the viscosity at working temp. If you just drive your car in the summer the viscosity of the oil will never really get that low because the heat will keep it more liquidy (viscous). So 5W-30 would be fine. In colder climates one should probably use 10W-30 because the oil stay a little more viscous allowing an easy start for the engine. Now with a 500hp engine you may need to pay more concern to the second number because its such a large engine. To find that out look at the car manual or search for it online. CheersI have a 2002 Trans Am with 500hp and I only drive it in the summer, what kind of oil and viscosity to use?
I would use whatever weight is recommended, probably 5W or 10W-30, although you might be able to up to 10W-40 without any issues especially since you only drive it in the heat of summer. You might be able to even use 20W-40.
I would definitely use a synthetic. With you only driving it in the summer you aren't going to put miles on it quickly at all. And with synthetic oil you don't have to change every 3,000 miles. You could probably drive it as far as you want and only need to change it once a year. (I drive a 1999 Chevy Express Van with a 305 V8 less than a full mile a day for my job and we use full synthetic and only change it once yearly and never have any problems.) The only factor for you is the oil sitting over your ';non-driving'; months. You could probably even get away with changing less than every summer if you wanted but I wouldn't just on principle.
The synthetic will hold up and provide you excellent engine protection. It won't break down hardly at all the way you will be driving your car.
I hope my answer helps you out!
You have a T/A with 500Hp?. You only drive it during summer? You don't know enough to know what kind of motor oil to use? Something is not adding up here! What do you know about cars?
The kind that makes oil prices pass 5 dollars a gallon.
I always use 20/50 GTX That stuff is great. won't brake down
You need to find out if your oil is synthetic or not. With the year and make of your car I would assume it is synthetic. When you look at oil there are 2 number ie. 5W-30. The first number is the viscosity at a cold temp and the second number is the viscosity at working temp. If you just drive your car in the summer the viscosity of the oil will never really get that low because the heat will keep it more liquidy (viscous). So 5W-30 would be fine. In colder climates one should probably use 10W-30 because the oil stay a little more viscous allowing an easy start for the engine. Now with a 500hp engine you may need to pay more concern to the second number because its such a large engine. To find that out look at the car manual or search for it online. CheersI have a 2002 Trans Am with 500hp and I only drive it in the summer, what kind of oil and viscosity to use?
I would use whatever weight is recommended, probably 5W or 10W-30, although you might be able to up to 10W-40 without any issues especially since you only drive it in the heat of summer. You might be able to even use 20W-40.
I would definitely use a synthetic. With you only driving it in the summer you aren't going to put miles on it quickly at all. And with synthetic oil you don't have to change every 3,000 miles. You could probably drive it as far as you want and only need to change it once a year. (I drive a 1999 Chevy Express Van with a 305 V8 less than a full mile a day for my job and we use full synthetic and only change it once yearly and never have any problems.) The only factor for you is the oil sitting over your ';non-driving'; months. You could probably even get away with changing less than every summer if you wanted but I wouldn't just on principle.
The synthetic will hold up and provide you excellent engine protection. It won't break down hardly at all the way you will be driving your car.
I hope my answer helps you out!
You have a T/A with 500Hp?. You only drive it during summer? You don't know enough to know what kind of motor oil to use? Something is not adding up here! What do you know about cars?
The kind that makes oil prices pass 5 dollars a gallon.
I always use 20/50 GTX That stuff is great. won't brake down
Question about oil viscosity 5w40 oil?
My friend says that 5w40 is too thin to use in a warm climate like hawaii, and that 10w40 would be better.
I was under the impression that the first number was the viscosity when cold, and doesn't matter once the engine is warmed up. Can someone explain?Question about oil viscosity 5w40 oil?
You are correct...your friend is wrong.
http://en.wikipedia.org/wiki/Viscosity_i鈥?/a>Question about oil viscosity 5w40 oil?
Just look at these sources to find your answer.blemishes
I was under the impression that the first number was the viscosity when cold, and doesn't matter once the engine is warmed up. Can someone explain?Question about oil viscosity 5w40 oil?
You are correct...your friend is wrong.
http://en.wikipedia.org/wiki/Viscosity_i鈥?/a>Question about oil viscosity 5w40 oil?
Just look at these sources to find your answer.
How many miles can I go before I NEED an oil change? (according to Honda 'viscosity' gauge)?
I just bought an '07 civic. I'm at 2,000 miles and my oil is at 70%. Will this meter go down to zero before I need to change the oil? Also, how many miles are people typically getting before needing an oil change (according to the meter)?How many miles can I go before I NEED an oil change? (according to Honda 'viscosity' gauge)?
according to the service manager where I get my acura serviced they said at 10% get the oil changed. Depends on what kind of driving you do is how many miles. It will be about 5,000 miles.How many miles can I go before I NEED an oil change? (according to Honda 'viscosity' gauge)?
I agree with Bare B, also, if you are using Synthetic oil, you can go about 4000 miles if not 4500
I recommend never going by time unless 3 months go by without an oil change. Thats one of the regular things one should do to a car, period.
Time is NOT a good indicator of when to change your oil. I change my oil with regular motor oil every 3K miles.
Now if you don't put on 3K miles within 3 months, then you should change it 4 times a year. This is to compensate for oil breakdown in your crankcase.
Oil changes are the cheapest preventative maintenance you can do. They are much cheaper than an engine over haul or replacement.
Unless you have severe driving conditions, such as driving in the desert, or drive short distances that doesn't warm the oil to normal operating temperature the semi synthetic oil used in most cars can go 5000miles with no problems at all. The package that semi synthetics are made of have the long strand polymers that plain oil had very little of. the semi's and full synthetics are light years away from plain motor oil. If you have semi synthetic oil , you are wasting good oil and money if you drop it at 3k. as the automakers recommend 5 k or 6 months. on semi synt. and 10k or 1 year on Full synthetics, if you do not have severe service. It that case 3k and 5 k are warranted. I have been a mechanic since 1968, and the oil today makes the stuff we used until the 90's work like muddy rain water. You also have to look at the fact that newer cars run at a much higher temperature which cook's off fuel and water in the oil, and don't forget the gasoline is not filling up your engine with all the hydrocarbons that broke down plain oil. The only caveat would be turbo charged engines as they meet the severe service standard, and the 3k 5k should be used.
get your oil changed, have synthetic oil used and have it changed every 4 to 6 months.
useing regular oil, about every 3 months
Mechanics have always pushed to have oil changed every 3 months or 3000 miles, whichever comes first. It isn't true. There is lots of money to be made in oil changes and they are trying to maximize those profits.
The actual interval depends a lot on the driving conditions so there is no one answer. My Acura RSX manual says change it every 5000 miles under severe conditions or 10,000 miles under regular conditions. I assume a Honda Civic wouldn't be too different. The oil gauge takes the guess work out of the equation. Just have it changed before the gauge gets to zero...15% would be safe.
Actually time the engine is running is the best way to gage oil wear, mileage is a poor way of determining when to change your oil. You could go on a trip right now and put on 3000 miles in a few days causing little oil breakdown, or you could drive 5 miles a day taking you almost 2 years to reach 3000 miles. Honda's gage takes both time and mileage into account.
according to the service manager where I get my acura serviced they said at 10% get the oil changed. Depends on what kind of driving you do is how many miles. It will be about 5,000 miles.How many miles can I go before I NEED an oil change? (according to Honda 'viscosity' gauge)?
I agree with Bare B, also, if you are using Synthetic oil, you can go about 4000 miles if not 4500
I recommend never going by time unless 3 months go by without an oil change. Thats one of the regular things one should do to a car, period.
Time is NOT a good indicator of when to change your oil. I change my oil with regular motor oil every 3K miles.
Now if you don't put on 3K miles within 3 months, then you should change it 4 times a year. This is to compensate for oil breakdown in your crankcase.
Oil changes are the cheapest preventative maintenance you can do. They are much cheaper than an engine over haul or replacement.
Unless you have severe driving conditions, such as driving in the desert, or drive short distances that doesn't warm the oil to normal operating temperature the semi synthetic oil used in most cars can go 5000miles with no problems at all. The package that semi synthetics are made of have the long strand polymers that plain oil had very little of. the semi's and full synthetics are light years away from plain motor oil. If you have semi synthetic oil , you are wasting good oil and money if you drop it at 3k. as the automakers recommend 5 k or 6 months. on semi synt. and 10k or 1 year on Full synthetics, if you do not have severe service. It that case 3k and 5 k are warranted. I have been a mechanic since 1968, and the oil today makes the stuff we used until the 90's work like muddy rain water. You also have to look at the fact that newer cars run at a much higher temperature which cook's off fuel and water in the oil, and don't forget the gasoline is not filling up your engine with all the hydrocarbons that broke down plain oil. The only caveat would be turbo charged engines as they meet the severe service standard, and the 3k 5k should be used.
get your oil changed, have synthetic oil used and have it changed every 4 to 6 months.
useing regular oil, about every 3 months
Mechanics have always pushed to have oil changed every 3 months or 3000 miles, whichever comes first. It isn't true. There is lots of money to be made in oil changes and they are trying to maximize those profits.
The actual interval depends a lot on the driving conditions so there is no one answer. My Acura RSX manual says change it every 5000 miles under severe conditions or 10,000 miles under regular conditions. I assume a Honda Civic wouldn't be too different. The oil gauge takes the guess work out of the equation. Just have it changed before the gauge gets to zero...15% would be safe.
Actually time the engine is running is the best way to gage oil wear, mileage is a poor way of determining when to change your oil. You could go on a trip right now and put on 3000 miles in a few days causing little oil breakdown, or you could drive 5 miles a day taking you almost 2 years to reach 3000 miles. Honda's gage takes both time and mileage into account.
What brand/viscosity of oil should i use?
its a 1991 madza 4cyl. and it also has 197k miles on it i live in philly (climate) and should i use slick 50 or lucas in my oil change?What brand/viscosity of oil should i use?
Don't waste your money on Slick 50 or Lucas. Just use the factory recommended 10w40 grade, of a namebrand oil.
If you lived in Alaska, you could maybe run 5w30. Especially with your mileage, I'd definitely stick with the heavier 10w40. Synthetics aren't a bad idea, there are some benefits but they're not necessary.What brand/viscosity of oil should i use?
15w 30 or mobil1 light weight dont use heavy weight unless you like engine sludge
Use the viscosity of oil recommended by the manufacturer (I agree that it is probably 5w30 but check just to be safe). As far as brands I would use either Mobil 1 synthetic or Pennzoil Platinum synthetic. I would NOT put any oil additives in. Grab a sample of your oil and send it in to Blackstone Laboratories and get an oil analysis. That will let you know what type of engine wear you have going on and the frequency that you should be changing your oil as well. You might be able to get another 100k to 150k out of your Mazda!
I wouldn't waste my money on Slick 50 or Lucas. If your car is not burning oil, then continue using the oil recommended by the manufacturer. If it's burning oil, then go to a 20/50.
Just about any major manufacturer of oil will work fine in your car. Just change it when you're supposed to. Heavy duty use, turbo, supercharger or racing will require better oils but general driving will be OK with regular oil.
Site showing that Slick 50 isn't the best or good product to use: http://skepdic.com/slick50.html
Another site showing the Lucas causes foaming (not a good thing): http://www.bobistheoilguy.com/images/luc鈥?/a>
Doesn't matter just use normal 5w 30 and you'll be fine.
I wouldn't use 30 weight oil, it has pretty high milage. I would either go with 10 w40 or 20 w 50, I would stay away with any oil additive.
It is a misconception that a heavier weight oil is needed in a older car use a 5W30 fully synthetic oil such as Mobile One, don't use additives the oil does not break down, change the oil and Filter regularly. It will be as fine in philly as it would be in florida.
Don't waste your money on Slick 50 or Lucas. Just use the factory recommended 10w40 grade, of a namebrand oil.
If you lived in Alaska, you could maybe run 5w30. Especially with your mileage, I'd definitely stick with the heavier 10w40. Synthetics aren't a bad idea, there are some benefits but they're not necessary.What brand/viscosity of oil should i use?
15w 30 or mobil1 light weight dont use heavy weight unless you like engine sludge
Use the viscosity of oil recommended by the manufacturer (I agree that it is probably 5w30 but check just to be safe). As far as brands I would use either Mobil 1 synthetic or Pennzoil Platinum synthetic. I would NOT put any oil additives in. Grab a sample of your oil and send it in to Blackstone Laboratories and get an oil analysis. That will let you know what type of engine wear you have going on and the frequency that you should be changing your oil as well. You might be able to get another 100k to 150k out of your Mazda!
I wouldn't waste my money on Slick 50 or Lucas. If your car is not burning oil, then continue using the oil recommended by the manufacturer. If it's burning oil, then go to a 20/50.
Just about any major manufacturer of oil will work fine in your car. Just change it when you're supposed to. Heavy duty use, turbo, supercharger or racing will require better oils but general driving will be OK with regular oil.
Site showing that Slick 50 isn't the best or good product to use: http://skepdic.com/slick50.html
Another site showing the Lucas causes foaming (not a good thing): http://www.bobistheoilguy.com/images/luc鈥?/a>
Doesn't matter just use normal 5w 30 and you'll be fine.
I wouldn't use 30 weight oil, it has pretty high milage. I would either go with 10 w40 or 20 w 50, I would stay away with any oil additive.
It is a misconception that a heavier weight oil is needed in a older car use a 5W30 fully synthetic oil such as Mobile One, don't use additives the oil does not break down, change the oil and Filter regularly. It will be as fine in philly as it would be in florida.
I need a solvent for reducing viscosity of paraffin oil?
without sulfur %26amp; aromatic this solvent to needs with more than 110 degre centegrad %26amp; maximum viscosity 3cst 20 C.
in the end our paraffin oil viscosity is 12 cst and we need change to max. viscosity 6 cst . at 20 c
with best regards
rezaI need a solvent for reducing viscosity of paraffin oil?
Xylenes might work as well. The are nonpolar solvents that like to dissolve lipophilic compounds such as paraffin oil...
from wikipedia...';Xylene is a generic term for a group of three benzene derivatives which encompasses ortho-, meta-, and para- isomers of dimethyl benzene. The o-, m- and p- designations specify to which carbon atoms (of the benzene ring) the two methyl groups are attached.';
Boiling points of the three isomers range from 138 degrees to 144 degrees Celcius...
in the end our paraffin oil viscosity is 12 cst and we need change to max. viscosity 6 cst . at 20 c
with best regards
rezaI need a solvent for reducing viscosity of paraffin oil?
Xylenes might work as well. The are nonpolar solvents that like to dissolve lipophilic compounds such as paraffin oil...
from wikipedia...';Xylene is a generic term for a group of three benzene derivatives which encompasses ortho-, meta-, and para- isomers of dimethyl benzene. The o-, m- and p- designations specify to which carbon atoms (of the benzene ring) the two methyl groups are attached.';
Boiling points of the three isomers range from 138 degrees to 144 degrees Celcius...
With SAE's oil viscosity standards, what does 30W-50 mean in terms of centiPoise and degrees Celsius?
You're from ND too, aren't you?With SAE's oil viscosity standards, what does 30W-50 mean in terms of centiPoise and degrees Celsius?
Ask prof stanisic
Ask prof stanisic
Which has more viscosity, vegetable oil or chocolate syrup?
Which has more viscosity? And if you can... please tell me why.Which has more viscosity, vegetable oil or chocolate syrup?
chocolate syrup
Viscosity is resistance to flow.
If you try to pour them through a straw, you'll see that the syrup flows much slower than the oil, because the syrup has a higher viscosity.Which has more viscosity, vegetable oil or chocolate syrup?
chocolate syrup
Viscosity is the resistance of a liquid to flow or its ';thickness';. So it pretty much depends on which is thicker. If a liquid is thicker, then it will have a higher resistance to flow and if a liquid is thinner, then it will have a lower resistance to flow.
Just imagine pouring out oil and chocloate syrup: which is thicker and would move slower...the oil or the chocolate syrup???
chocolate syrup, %26amp; i dont know why its more viscuous, it just is! Although u could add the vegetable oil to the choc syrup to thin the syrup out, aha! ;-)
chocolate syrup
Viscosity is resistance to flow.
If you try to pour them through a straw, you'll see that the syrup flows much slower than the oil, because the syrup has a higher viscosity.Which has more viscosity, vegetable oil or chocolate syrup?
chocolate syrup
Viscosity is the resistance of a liquid to flow or its ';thickness';. So it pretty much depends on which is thicker. If a liquid is thicker, then it will have a higher resistance to flow and if a liquid is thinner, then it will have a lower resistance to flow.
Just imagine pouring out oil and chocloate syrup: which is thicker and would move slower...the oil or the chocolate syrup???
chocolate syrup, %26amp; i dont know why its more viscuous, it just is! Although u could add the vegetable oil to the choc syrup to thin the syrup out, aha! ;-)
Regarding 5w30 oil viscosity, is the following true? ?
when you start your engine the viscosity index is 5, and as you approach the full operating temperature the viscosity modifiers thicken the oil to a 30 viscosity value. which would mean that if i am driving a short trip the oil viscosity value might only thicken to a 20, i've read that it takes approx. 20 mintes for the oil to reach its full viscosity value, 30 in my case. thanks everybodyRegarding 5w30 oil viscosity, is the following true? ?
Multigrade oils typically begin as base oils, such as 10W. Then viscosity-index modifiers (polymers) are added in an effort to stabilize the viscosity. This allows a 10W40 oil to flow like a 10W at cold temperatures and a 40W at higher temperatures. In other words, multigrade oils are formulated to pass viscosity tests across a range of weights. For example, 10W30 meets the requirements for 10-weight at cold temperatures and 30-weight at high temps.Regarding 5w30 oil viscosity, is the following true? ?
the advantage of the thinner oil is that oil pressure and flow will reach the upper end faster, decreasing the amount of wear to related parts. also the thinner oil is advantageous to you by decreasing the amount of work that the engine has to do to get the oil to circulate. the oils viscosity should not change that fast really, but i am truly unsure what your question is. the oil will thicken to its needed level.
It is just the opposite. The oil is thicker when it is cold.
This is true...it's heat activatedblemishes
Multigrade oils typically begin as base oils, such as 10W. Then viscosity-index modifiers (polymers) are added in an effort to stabilize the viscosity. This allows a 10W40 oil to flow like a 10W at cold temperatures and a 40W at higher temperatures. In other words, multigrade oils are formulated to pass viscosity tests across a range of weights. For example, 10W30 meets the requirements for 10-weight at cold temperatures and 30-weight at high temps.Regarding 5w30 oil viscosity, is the following true? ?
the advantage of the thinner oil is that oil pressure and flow will reach the upper end faster, decreasing the amount of wear to related parts. also the thinner oil is advantageous to you by decreasing the amount of work that the engine has to do to get the oil to circulate. the oils viscosity should not change that fast really, but i am truly unsure what your question is. the oil will thicken to its needed level.
It is just the opposite. The oil is thicker when it is cold.
This is true...it's heat activated
105k miles mustang and oil viscosity 5w20 to10w30?
will this help my engine stop chattering or not recommended?
i used 5w20 synthetic during the winter and would like to know a good viscosity for the summer and high mileage105k miles mustang and oil viscosity 5w20 to10w30?
I highly suggest that you switch to Valvoline MaxLife synthetic motor oil (10w30) and use it year-round. As far as I'm concerned, it's the best oil to use for all fuel injected Mustangs. Switching from 5w20 to the heavier 10w30 will not only provide better protection and performance, it will suppress most if not all of the engine's valve train ';chatter';.105k miles mustang and oil viscosity 5w20 to10w30?
You didn't say what year. 10W-30 for most pre 90's and 5W-30 for post 90's. Good all year round. I put 10W-30 in my 86 Ford and 5W-30 in my mothers 94 Buick. I once made the mistake of putting 5W-30 in my 76 ford (less than 100,000 miles) and one of the lifters got stuck. Had a nasty tapping from the cam hitting the stuck lifter. Drained the 5W-30 and replaced with 10W-30 and a can of engine restore to cure the problem. Lucas is good, but I prefer CarQuest brand Engine Restore.
We use Valvoline 10/30 in all the cars over 100,000 at our shop unless the customer requests other wise. We do repairs and a lube service.
I don't know what you mean by chattering. It may be a problem that has nothing to do with oil. You can try putting a quart of Lucas oil stabilizer in with the oil.
i used 5w20 synthetic during the winter and would like to know a good viscosity for the summer and high mileage105k miles mustang and oil viscosity 5w20 to10w30?
I highly suggest that you switch to Valvoline MaxLife synthetic motor oil (10w30) and use it year-round. As far as I'm concerned, it's the best oil to use for all fuel injected Mustangs. Switching from 5w20 to the heavier 10w30 will not only provide better protection and performance, it will suppress most if not all of the engine's valve train ';chatter';.105k miles mustang and oil viscosity 5w20 to10w30?
You didn't say what year. 10W-30 for most pre 90's and 5W-30 for post 90's. Good all year round. I put 10W-30 in my 86 Ford and 5W-30 in my mothers 94 Buick. I once made the mistake of putting 5W-30 in my 76 ford (less than 100,000 miles) and one of the lifters got stuck. Had a nasty tapping from the cam hitting the stuck lifter. Drained the 5W-30 and replaced with 10W-30 and a can of engine restore to cure the problem. Lucas is good, but I prefer CarQuest brand Engine Restore.
We use Valvoline 10/30 in all the cars over 100,000 at our shop unless the customer requests other wise. We do repairs and a lube service.
I don't know what you mean by chattering. It may be a problem that has nothing to do with oil. You can try putting a quart of Lucas oil stabilizer in with the oil.
How dos heat affect the viscosity of oil?
i have to do a science project about it, and i am wondering how to conduct this experiment(materials and procedure) i also have to use variables, constants, and controlsHow dos heat affect the viscosity of oil?
Heat can cook and break down oils. With engine oils this ruins the protective, cleaning and other additive properties of the oil.
According to Wikipedia: http://en.wikipedia.org/wiki/Viscosity#V鈥?/a>
';Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or extensional stress. In general terms it is the resistance of a liquid to flow, or its ';thickness';. Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is ';thin';, having a lower viscosity, while vegetable oil is ';thick'; having a higher viscosity. All real fluids (except superfluids) have some resistance to stress, but a fluid which has no resistance to shear stress is known as an ideal fluid or inviscid fluid. For example, a high viscosity magma will create a tall volcano, because it cannot spread fast enough; low viscosity lava will create a shield volcano, which is large and wide. The study of viscosity is known as rheology.';
Check out the temperature based math formula: http://en.wikipedia.org/wiki/Viscosity#E鈥?/a>
';Effect of temperature on the viscosity of a gas
Sutherland's formula can be used to derive the dynamic viscosity of an ideal gas as a function of the temperature.';
For purposes of calculation gases and liquids are assumed to have similar characteristics as with the ';ideal gas.';
Here is a layman's explanation of viscosity: http://www.upmpg.com/tech_articles/motor鈥?/a>
Doing a project on engine oil for school is going to require a heat source (oven) that can exceed that of any household oven into 2,000 degrees so you can actually break down the oil. Yow shouldn't be able to obtain any temperatures like this with an open flame it will take some sort of special ceramic lined oven, like the ones used to make pyrex glass. Or you could expose the oil to the flame of a plasma cutter, but you would probably just vaporize the oil (that flame is too hot). Unless you have access to a brick maker's kiln I would consider another project.
Other projects could be on the type of material and the viscosity of the lubricant used. For many years they have made a model internal combustion engine created out of transparent plastic. You can take one of these models build it and then use a electrical motor to operate the engine. Use a variety of fluids; oil, vegetable oil, water, glycerin and no lubricant. Attach your motor to a variable resistor and a large power source creating a variable power supply. Use Ohm's Law to figure out the power needed by measuring the amperage of the circuit (with an amp meter inside the circuit) measuring the voltage of the circuit and calculating the resistance or measuring it with an ohm meter (most electrical meters can do all three functions). Theoretically the better the lubricant the less energy required to operate the engine. Of course you are ignoring the heat created by the constant explosions in an internal combustion engine, here you are only working with the resistance of the moving parts.How dos heat affect the viscosity of oil?
Look up API Viscosity Charts on the web.
Heat can cook and break down oils. With engine oils this ruins the protective, cleaning and other additive properties of the oil.
According to Wikipedia: http://en.wikipedia.org/wiki/Viscosity#V鈥?/a>
';Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or extensional stress. In general terms it is the resistance of a liquid to flow, or its ';thickness';. Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is ';thin';, having a lower viscosity, while vegetable oil is ';thick'; having a higher viscosity. All real fluids (except superfluids) have some resistance to stress, but a fluid which has no resistance to shear stress is known as an ideal fluid or inviscid fluid. For example, a high viscosity magma will create a tall volcano, because it cannot spread fast enough; low viscosity lava will create a shield volcano, which is large and wide. The study of viscosity is known as rheology.';
Check out the temperature based math formula: http://en.wikipedia.org/wiki/Viscosity#E鈥?/a>
';Effect of temperature on the viscosity of a gas
Sutherland's formula can be used to derive the dynamic viscosity of an ideal gas as a function of the temperature.';
For purposes of calculation gases and liquids are assumed to have similar characteristics as with the ';ideal gas.';
Here is a layman's explanation of viscosity: http://www.upmpg.com/tech_articles/motor鈥?/a>
Doing a project on engine oil for school is going to require a heat source (oven) that can exceed that of any household oven into 2,000 degrees so you can actually break down the oil. Yow shouldn't be able to obtain any temperatures like this with an open flame it will take some sort of special ceramic lined oven, like the ones used to make pyrex glass. Or you could expose the oil to the flame of a plasma cutter, but you would probably just vaporize the oil (that flame is too hot). Unless you have access to a brick maker's kiln I would consider another project.
Other projects could be on the type of material and the viscosity of the lubricant used. For many years they have made a model internal combustion engine created out of transparent plastic. You can take one of these models build it and then use a electrical motor to operate the engine. Use a variety of fluids; oil, vegetable oil, water, glycerin and no lubricant. Attach your motor to a variable resistor and a large power source creating a variable power supply. Use Ohm's Law to figure out the power needed by measuring the amperage of the circuit (with an amp meter inside the circuit) measuring the voltage of the circuit and calculating the resistance or measuring it with an ohm meter (most electrical meters can do all three functions). Theoretically the better the lubricant the less energy required to operate the engine. Of course you are ignoring the heat created by the constant explosions in an internal combustion engine, here you are only working with the resistance of the moving parts.How dos heat affect the viscosity of oil?
Look up API Viscosity Charts on the web.
What is a catchy title for my science project: Which Liquid has a higher viscosity- Water, Oil, or Syrup? ?
I have a science fair project and i need a catchy title.. HELP PLEASE!!!What is a catchy title for my science project: Which Liquid has a higher viscosity- Water, Oil, or Syrup? ?
Runny Liquids? Which runs most???What is a catchy title for my science project: Which Liquid has a higher viscosity- Water, Oil, or Syrup? ?
But water oil, and syrup will all become solids at some temperature, so do we not have to specify a temperature?
A solid more strongly resists deformation. A gas (they all vaporize) has very low viscosity.
Oil is not a single substance but a wide range of substances from low viscosity to high. Water's viscosity changes abruptly at boiling point and freezing point but at liquid temperatures it will be less viscose than most oils. We can find exceptions.
Syrup is in general sticky so we think it would have a higher viscosity. But we have not defined at what point we stop calling it a syrup and at what we call it water. But hot syrup has less viscosity than it has when cold (molasses in January).
Some oil will have higher viscosity than some syrup.
Most syrups will have more viscosity than liquid water.
If you name the particular variant of oil, its temperature, and likewise for syrup, we may come up with an answer.
A title might be :Forces needed to deform a liquid or Resistance to deformation within a liquid at various temperatures.
Molasses In February
The Vicissitudes of Viscosity
Runny Liquids? Which runs most???What is a catchy title for my science project: Which Liquid has a higher viscosity- Water, Oil, or Syrup? ?
But water oil, and syrup will all become solids at some temperature, so do we not have to specify a temperature?
A solid more strongly resists deformation. A gas (they all vaporize) has very low viscosity.
Oil is not a single substance but a wide range of substances from low viscosity to high. Water's viscosity changes abruptly at boiling point and freezing point but at liquid temperatures it will be less viscose than most oils. We can find exceptions.
Syrup is in general sticky so we think it would have a higher viscosity. But we have not defined at what point we stop calling it a syrup and at what we call it water. But hot syrup has less viscosity than it has when cold (molasses in January).
Some oil will have higher viscosity than some syrup.
Most syrups will have more viscosity than liquid water.
If you name the particular variant of oil, its temperature, and likewise for syrup, we may come up with an answer.
A title might be :Forces needed to deform a liquid or Resistance to deformation within a liquid at various temperatures.
Molasses In February
The Vicissitudes of Viscosity
How much deviation from 2 oil viscosity is acceptable?
Do you mean; can I throw in some 30W in my engine if I can't buy 10W-40? If there is nothing else available and you need it to run your car, then you can temporarily substitute *any* weight of automobile motor oil. You can even wait until your next oil change to put it back to 'normal'.
Do you mean; Is there a tolerance set forth by the SAE for viscosity ratings? If that is your question, you'll have to consult the SAE website.
.
Do you mean; Is there a tolerance set forth by the SAE for viscosity ratings? If that is your question, you'll have to consult the SAE website.
.
Why does the viscosity of car oil change with temperature?
yes...lower temperature ..higher viscosity
they use to have different oils for winter and summer just for that reason.Why does the viscosity of car oil change with temperature?
Look at viscosity in terms of ';thickness'; or ';density';. As the oil heats up with engine temp the molecular makeup expands, spreading the molecules apart. It could be said it spreads the thickness or density out making it thinner or less viscous.
they use to have different oils for winter and summer just for that reason.Why does the viscosity of car oil change with temperature?
Look at viscosity in terms of ';thickness'; or ';density';. As the oil heats up with engine temp the molecular makeup expands, spreading the molecules apart. It could be said it spreads the thickness or density out making it thinner or less viscous.
HELP!!! Oil Viscosity for car. Needed 5-30, got 15-40. What should I do?
I have a Toyota Corolla 2006 that asks for 5-30 oil. I got it changed today and they put in 15-40 instead. Is this bad? What should I do? Change it again to the correct viscosity, or wait 3,000 more miles? By the way, I live and drive in an extremely hot climate. Average summer high is over 100 degrees F and it never gets below 70 degrees F. Please helpHELP!!! Oil Viscosity for car. Needed 5-30, got 15-40. What should I do?
Since the low temperature is only 70 then your engine will be fine with the higher viscosity oil. Just give it about 30 to 45 seconds to pump the oil up to all the parts and drive in a normal manner. Then change back on the next oil change.HELP!!! Oil Viscosity for car. Needed 5-30, got 15-40. What should I do?
leave it it'll be fine just remember who you took it too last time when you get it serviced next!
I'd be tempted to say it would be better with the oil you now have in if the ambiant temp is as high as you say
I agree with Impala77. I also am a mechanic. 27 yrs. I prefer All Data to Mitchell On Demand though.
Provided you aren't ranting it everywhere 15w/40 is fine.
seeing the heat range where you live you will be OK until the next oil change.
soooooooooooo change it a little early/its no police car or taxi/40 builds sludge/out early and your all rightblemishes
Since the low temperature is only 70 then your engine will be fine with the higher viscosity oil. Just give it about 30 to 45 seconds to pump the oil up to all the parts and drive in a normal manner. Then change back on the next oil change.HELP!!! Oil Viscosity for car. Needed 5-30, got 15-40. What should I do?
leave it it'll be fine just remember who you took it too last time when you get it serviced next!
I'd be tempted to say it would be better with the oil you now have in if the ambiant temp is as high as you say
I agree with Impala77. I also am a mechanic. 27 yrs. I prefer All Data to Mitchell On Demand though.
Provided you aren't ranting it everywhere 15w/40 is fine.
seeing the heat range where you live you will be OK until the next oil change.
soooooooooooo change it a little early/its no police car or taxi/40 builds sludge/out early and your all right
Is it possible to lower the viscosity of light mineral oil somehow?
Note - I'm a college student and don't have access to equipment that the average person wouldn't. thnxIs it possible to lower the viscosity of light mineral oil somehow?
You can also dilute it with a solvent like kerosene or a similar hydrocarbon.
You might also consider one of the hydraulic oils designed for low temperatures.Is it possible to lower the viscosity of light mineral oil somehow?
Yes; just warm it up a bit.
Or mix in some even lighter mineral oil.
You can also dilute it with a solvent like kerosene or a similar hydrocarbon.
You might also consider one of the hydraulic oils designed for low temperatures.Is it possible to lower the viscosity of light mineral oil somehow?
Yes; just warm it up a bit.
Or mix in some even lighter mineral oil.
Is a Higher Viscosity Index for oil good or bad?
I am trying to decide on a Synthetic15W-40 Oil for a Diesel Engine. RedLine and Amsoil seem to be the two best, but I'm not sure which is better. Based on these stats, which of the two oils would be better for a diesel engine?
AMSOIL Kinematic Viscosity @ 100掳C, cSt= 14.4
RedLine Kinematic Viscosity @ 100掳C, cSt= 14.5
______________________________________鈥?br>
AMSOIL Kinematic Viscosity @ 40掳C, cSt= 89.7
RedLine Kinematic Viscosity @ 40掳C, cSt= 97.0
______________________________________鈥?br>
AMSOIL Viscosity Index= 167
RedLine Viscosity Index= 155
______________________________
AMSOIL Pour Point 掳F= -44
RedLine Pour Point 掳F= -49
________________________________
AMSOIL Flash Point 掳F= 453
RedLine Flash Point 掳F= 486
______________________________________
I'm not sure if higher or low is better when it comes to these stats. Could you please help me with understanding these? Thanks.Is a Higher Viscosity Index for oil good or bad?
use the redline, more viscosity is always better. the viscosity is how slippery it is. i see that the amsoil has the superior viscosity to red line,but the redline provides more protection in all other fields,so itll be better for your engine.have you checked into shell rotella-t? or lucas oil stabilizer? flashpoint is what temp it needs to be to catch on fire. so naturally higher temp is better,means it'll take longer to catch on fire. pour point is how cold it can be and the fluid will still flow. the -49 is colder than -44 so itll give you 5 degrees colder protectionIs a Higher Viscosity Index for oil good or bad?
rotella 15w40 is the only way to go with diesels.
Higher is bad period. You dont want to go over a 30W for any reason. I use 5W30 in the winter and 10W30 in the summer.
Mark's got it right. The zinc additive is an anti-scuff/anti wear agent. It was removed from gasoline engine oil last year, as it can degrade catalytic converter life by a smidgen. Several cam companies suggest a zinc oil or a zinc additive to prevent cam lobe and lifter scuffing with flat-tappet cams. Most new cars have gone to roller cams since the late '80s, so its not ';needed'; as bad for newer gas engines.
Right now, diesel rated oils still have zinc content. They may take it out next year, as low-sulfer deisels with converters come into the market. Don't know how that is going to affect diesel engine life, as diesels get lugged and worked hard at low RPM.
I add a pint of the STP oil treatment with every oil change in my Bel Air and GTO. Everybody thinks STP is just thick goop. But if you look at the corner of the front label, you'll see ';ZDDP anti wear agent';. Zinc diphosphate, baby!
Higher viscosity for hot weather, lower for cold. It's the external temp. that matters.
I would have to agree with theleb63, and I kinda agree with phillip t. The RedLine does look a little better as far as the numbers are concerned, but you won't notice too much of a difference between the two. Philip t suggests Shell Rotella. I used that oil in my 18 wheeler and had not a single problem with it as long as the oil changes were kept at regular intervals. I don't know if the Rotella has a synthetic oil on the market or not. It wasn't available at the time I used it, but synthetic oil wasn't that big a deal yet. As far as diesel engines are concerned, a 15W-40 oil is ideal. Here's a few links to get you started. The first is for the Rotella T regular oil. notice the specs compared to the synthetic oils that you listed. The second is a direct link to the Shell website, but I didn't see a 15W40 full synthetic there. Good luck!
http://kozmik.guelph.on.ca/gtdproject/fl鈥?/a>
http://kozmik.guelph.on.ca/gtdproject/fl鈥?/a>
I wouldn't get excited about the difference. Changing oil is much more important than getting the perfect oil. If you pay too much for the oil you may be reluctant to change it as often. A well worn engine may be helped by a higher viscosity. Low temps outside a lower viscosity.
This whole issue depends on climate, driving conditions, and motor wear.
The colder it is, the thinner you need it (lower visc)
Hard driving needs a thicker oil, and so does engines with lots of wear.
Out of your list the RedLine looks better overall / just remember Diesel's get oil fuel polution faster than a gas eng will, they are also harder on oil overall.
(Note: The comment about high visc oil being bad is simply wrong - try driving that motor with 10w30 in death valley and see what happens)
Is either oil a diesel rated oil? Gas motor oils do not contain the correct additives to properly protect a diesel motor. I recently read an article (either in Car Craft or Hot Rod), that recommends diesel oils for NEW or rebuilt motors (especially high performance motors) at least for the break in period, due to the extra protection offered by the diesel oils. The additives are minor but add slightly to emissions in gas engines.
If both oils are diesel rated, looking at the specs you posted, you are really splitting hairs on this subject. Both oils are extremely good and I would be most likely to use the one that you have the best access to. (dealer close by or good friend deals the product)
Mark in NE Indiana
AMSOIL Kinematic Viscosity @ 100掳C, cSt= 14.4
RedLine Kinematic Viscosity @ 100掳C, cSt= 14.5
______________________________________鈥?br>
AMSOIL Kinematic Viscosity @ 40掳C, cSt= 89.7
RedLine Kinematic Viscosity @ 40掳C, cSt= 97.0
______________________________________鈥?br>
AMSOIL Viscosity Index= 167
RedLine Viscosity Index= 155
______________________________
AMSOIL Pour Point 掳F= -44
RedLine Pour Point 掳F= -49
________________________________
AMSOIL Flash Point 掳F= 453
RedLine Flash Point 掳F= 486
______________________________________
I'm not sure if higher or low is better when it comes to these stats. Could you please help me with understanding these? Thanks.Is a Higher Viscosity Index for oil good or bad?
use the redline, more viscosity is always better. the viscosity is how slippery it is. i see that the amsoil has the superior viscosity to red line,but the redline provides more protection in all other fields,so itll be better for your engine.have you checked into shell rotella-t? or lucas oil stabilizer? flashpoint is what temp it needs to be to catch on fire. so naturally higher temp is better,means it'll take longer to catch on fire. pour point is how cold it can be and the fluid will still flow. the -49 is colder than -44 so itll give you 5 degrees colder protectionIs a Higher Viscosity Index for oil good or bad?
rotella 15w40 is the only way to go with diesels.
Higher is bad period. You dont want to go over a 30W for any reason. I use 5W30 in the winter and 10W30 in the summer.
Mark's got it right. The zinc additive is an anti-scuff/anti wear agent. It was removed from gasoline engine oil last year, as it can degrade catalytic converter life by a smidgen. Several cam companies suggest a zinc oil or a zinc additive to prevent cam lobe and lifter scuffing with flat-tappet cams. Most new cars have gone to roller cams since the late '80s, so its not ';needed'; as bad for newer gas engines.
Right now, diesel rated oils still have zinc content. They may take it out next year, as low-sulfer deisels with converters come into the market. Don't know how that is going to affect diesel engine life, as diesels get lugged and worked hard at low RPM.
I add a pint of the STP oil treatment with every oil change in my Bel Air and GTO. Everybody thinks STP is just thick goop. But if you look at the corner of the front label, you'll see ';ZDDP anti wear agent';. Zinc diphosphate, baby!
Higher viscosity for hot weather, lower for cold. It's the external temp. that matters.
I would have to agree with theleb63, and I kinda agree with phillip t. The RedLine does look a little better as far as the numbers are concerned, but you won't notice too much of a difference between the two. Philip t suggests Shell Rotella. I used that oil in my 18 wheeler and had not a single problem with it as long as the oil changes were kept at regular intervals. I don't know if the Rotella has a synthetic oil on the market or not. It wasn't available at the time I used it, but synthetic oil wasn't that big a deal yet. As far as diesel engines are concerned, a 15W-40 oil is ideal. Here's a few links to get you started. The first is for the Rotella T regular oil. notice the specs compared to the synthetic oils that you listed. The second is a direct link to the Shell website, but I didn't see a 15W40 full synthetic there. Good luck!
http://kozmik.guelph.on.ca/gtdproject/fl鈥?/a>
http://kozmik.guelph.on.ca/gtdproject/fl鈥?/a>
I wouldn't get excited about the difference. Changing oil is much more important than getting the perfect oil. If you pay too much for the oil you may be reluctant to change it as often. A well worn engine may be helped by a higher viscosity. Low temps outside a lower viscosity.
This whole issue depends on climate, driving conditions, and motor wear.
The colder it is, the thinner you need it (lower visc)
Hard driving needs a thicker oil, and so does engines with lots of wear.
Out of your list the RedLine looks better overall / just remember Diesel's get oil fuel polution faster than a gas eng will, they are also harder on oil overall.
(Note: The comment about high visc oil being bad is simply wrong - try driving that motor with 10w30 in death valley and see what happens)
Is either oil a diesel rated oil? Gas motor oils do not contain the correct additives to properly protect a diesel motor. I recently read an article (either in Car Craft or Hot Rod), that recommends diesel oils for NEW or rebuilt motors (especially high performance motors) at least for the break in period, due to the extra protection offered by the diesel oils. The additives are minor but add slightly to emissions in gas engines.
If both oils are diesel rated, looking at the specs you posted, you are really splitting hairs on this subject. Both oils are extremely good and I would be most likely to use the one that you have the best access to. (dealer close by or good friend deals the product)
Mark in NE Indiana
What is the viscosity of 2 stroke oil?
i have an old rototiller that calls for a mixture of 6-8 % 50wt oil to gas . can i use two stroke oil,and if so how much ?What is the viscosity of 2 stroke oil?
viscosity is simply the ''thickness'' of oil at a certain temperature...
and 2 stroke oil will do.What is the viscosity of 2 stroke oil?
That is indeed a museum piece. The reason they mention 50wt oil is because at that time there wasn't what we know as 2-stroke oil around, so they used something like a precautionary 16/18 to 1 oil ratio. Yes, 2-stroke will do fine, in fact probably a better job, so I'd use a thinner ratio, try 25 to 1 and see how it goes. That's about 1/3 pint per gallon.
If it goes well and is smoky, you might try a bit less oil.
Sounds like approximately a 1:15 oil to gas ratio. Regular 2 stroke oil is fine, put about 10 oz of oil in 1 gallon of gas. I've never heard of the mixture refferred to in percentages, so make sure its correct before trying anything so you don't damage it.
Wow! that is an old one. it originally used 50w motor oil mixed with gas.
I don't know if 50w oil is even still sold. ask at your local auto parts store.
modern 2stroke oil would probably be fine,it lubricates better than the older oils. oil technology has moved ahead leaps and bounds since that engine was built.
two strokes get there oil from the oil/gas mix. yes you should use 2 stroke oil just put in a couple of caps full into the fuel tank. should be just fine.
yes 40:1 ,and don't ask any more stupid questions you tight-wad
two stroke oil would be fine.
viscosity is simply the ''thickness'' of oil at a certain temperature...
and 2 stroke oil will do.What is the viscosity of 2 stroke oil?
That is indeed a museum piece. The reason they mention 50wt oil is because at that time there wasn't what we know as 2-stroke oil around, so they used something like a precautionary 16/18 to 1 oil ratio. Yes, 2-stroke will do fine, in fact probably a better job, so I'd use a thinner ratio, try 25 to 1 and see how it goes. That's about 1/3 pint per gallon.
If it goes well and is smoky, you might try a bit less oil.
Sounds like approximately a 1:15 oil to gas ratio. Regular 2 stroke oil is fine, put about 10 oz of oil in 1 gallon of gas. I've never heard of the mixture refferred to in percentages, so make sure its correct before trying anything so you don't damage it.
Wow! that is an old one. it originally used 50w motor oil mixed with gas.
I don't know if 50w oil is even still sold. ask at your local auto parts store.
modern 2stroke oil would probably be fine,it lubricates better than the older oils. oil technology has moved ahead leaps and bounds since that engine was built.
two strokes get there oil from the oil/gas mix. yes you should use 2 stroke oil just put in a couple of caps full into the fuel tank. should be just fine.
yes 40:1 ,and don't ask any more stupid questions you tight-wad
two stroke oil would be fine.
Thicker viscosity oil on High Milage?
Is it a good idea to use a thicker viscosity oil on a High millage car? For example, lets say that the car manual suggest 5W30 oil, should I upgrade to a 5W40 or 10W40 just because the car has 75,000 or 100,000 miles on it? What are the advantages to using a thicker oil?Thicker viscosity oil on High Milage?
Dear Juan-
On the higher milage cars its better to go with the heavier oils like 15w-40, or 20w-50.
The reason the lighter oils were developed is because the machining standards are much tighter on today's engines. But the other reason is for fuel efficency.
However, as the engines are used the tolerances open up due to the natural wear of the moving parts. This includes piston rings, valves, bearings and other such parts in the engines.
As these parts wear-in the parts become looser and hence need a thicker oil to better protect them for the future miles they may encounter.
Here is the rule of thumb that we use at our Chevrolet Dealership.
New, (0 to 30,000 miles): 0w-20, 5w-30, 10w-30
Intermediate, (30,001 to 75,000 miles) 10w-30, 10w-40,
15w-40
High Milage, (75,001 to 100,000+ Miles): 15w-40, 20w-50
Just be sure to keep the oil and the filter changed every 3000 miles or 90 days. This is the absolute best way to keep oil related engine damage from happening.
Also stick with the same brand of oil, do not switch brands on every oil change. This can and has been known to cause engine sludge build-up.
If you are not sure whay brand of oil was used in the car last, that is OK, just pick a specific brand and stick with it for as long as you own your car. You will be just fine.
For the record, if the vehicle manual suggested a particular type of oil, you can stick with that if you like, but the chances of that engine burning oil becomes greater as the engine wears.
The normal burn ratio for Oil Consumption is about 1 quart of oil to every 75 gallons of fuel, (Basically one quart of oil between oil changes). This is considered ';normal'; oil consumption.
As for the advantages of using a thicker oil, better engine protection, but its at the cost of a little fuel efficency.
Good Luck and I hope I was able to help you out!Thicker viscosity oil on High Milage?
10-40 NO!
The major oil co's have special blends out for cars with high mileage. Stay with the manufacturer's recommendations.
why would you want to do that ? so the oil takes longer to get to the internal parts that require lubrication , the thicker the oil the slower it will flow . stay with the manufactures recommended wt
i would recommend 10w30. after your car gets above 75k the tollerances get larger, therefor the lighter oils will not have the correct lubricating properties
if an engine has over 100,000 miles then yes you need to use a slightly thicker oil to lube all moving parts. you can also use a good heavy duty oil such as shell rotella-t , chevron
delo, or chevron delvac 15w40. all 3 oils mentioned come
in 15w40 and 20w50. these have more anti-wear additives than normal oil you would use in your car.i use 15w40 shell rotella-t in all my vehicles. i has a 1988 lincoln MKVII LSC
H.O. 5.0 with 187000 miles, a 1983 AMC eagle4x4
I-6 258 with 230000 miles, and a 1988 GMC V-2500
suburban 4x4 v-8 350 with 40000 miles on a new crate 350
engine. oils like rotella-t and delo are for commercial semi's
and are excellent in high loads and temps. my father also
uses rotella-t in a 1988 olds 98 regency with 300,000
miles on it and has no problems.
depends on the wear in the engine ,,do ya have low oil pressure? 235,000 miles on 10-40
I'd go to 10w40. The thicker oil takes up a little more space in your worn bearings and other moving parts.
If it is 5W30, use 10W30, you dont need higher vicosity, just more weight, but if it is around winter time, than stick with 5W30 for high milage cars, as the cold weather makes it thicker anyway.
no,its not a good idea, and there are no advantages,unless your moving from fargo to death valley, then you might wanna think about it.
Dear Juan-
On the higher milage cars its better to go with the heavier oils like 15w-40, or 20w-50.
The reason the lighter oils were developed is because the machining standards are much tighter on today's engines. But the other reason is for fuel efficency.
However, as the engines are used the tolerances open up due to the natural wear of the moving parts. This includes piston rings, valves, bearings and other such parts in the engines.
As these parts wear-in the parts become looser and hence need a thicker oil to better protect them for the future miles they may encounter.
Here is the rule of thumb that we use at our Chevrolet Dealership.
New, (0 to 30,000 miles): 0w-20, 5w-30, 10w-30
Intermediate, (30,001 to 75,000 miles) 10w-30, 10w-40,
15w-40
High Milage, (75,001 to 100,000+ Miles): 15w-40, 20w-50
Just be sure to keep the oil and the filter changed every 3000 miles or 90 days. This is the absolute best way to keep oil related engine damage from happening.
Also stick with the same brand of oil, do not switch brands on every oil change. This can and has been known to cause engine sludge build-up.
If you are not sure whay brand of oil was used in the car last, that is OK, just pick a specific brand and stick with it for as long as you own your car. You will be just fine.
For the record, if the vehicle manual suggested a particular type of oil, you can stick with that if you like, but the chances of that engine burning oil becomes greater as the engine wears.
The normal burn ratio for Oil Consumption is about 1 quart of oil to every 75 gallons of fuel, (Basically one quart of oil between oil changes). This is considered ';normal'; oil consumption.
As for the advantages of using a thicker oil, better engine protection, but its at the cost of a little fuel efficency.
Good Luck and I hope I was able to help you out!Thicker viscosity oil on High Milage?
10-40 NO!
The major oil co's have special blends out for cars with high mileage. Stay with the manufacturer's recommendations.
why would you want to do that ? so the oil takes longer to get to the internal parts that require lubrication , the thicker the oil the slower it will flow . stay with the manufactures recommended wt
i would recommend 10w30. after your car gets above 75k the tollerances get larger, therefor the lighter oils will not have the correct lubricating properties
if an engine has over 100,000 miles then yes you need to use a slightly thicker oil to lube all moving parts. you can also use a good heavy duty oil such as shell rotella-t , chevron
delo, or chevron delvac 15w40. all 3 oils mentioned come
in 15w40 and 20w50. these have more anti-wear additives than normal oil you would use in your car.i use 15w40 shell rotella-t in all my vehicles. i has a 1988 lincoln MKVII LSC
H.O. 5.0 with 187000 miles, a 1983 AMC eagle4x4
I-6 258 with 230000 miles, and a 1988 GMC V-2500
suburban 4x4 v-8 350 with 40000 miles on a new crate 350
engine. oils like rotella-t and delo are for commercial semi's
and are excellent in high loads and temps. my father also
uses rotella-t in a 1988 olds 98 regency with 300,000
miles on it and has no problems.
depends on the wear in the engine ,,do ya have low oil pressure? 235,000 miles on 10-40
I'd go to 10w40. The thicker oil takes up a little more space in your worn bearings and other moving parts.
If it is 5W30, use 10W30, you dont need higher vicosity, just more weight, but if it is around winter time, than stick with 5W30 for high milage cars, as the cold weather makes it thicker anyway.
no,its not a good idea, and there are no advantages,unless your moving from fargo to death valley, then you might wanna think about it.
What's the engine oil viscosity ';upgrade'; from a 10W-30 oil?
For more than a year, I've been using carbon-based 10W-30 motor oil on my Chevrolet 3100 series V-6. The manufacturer recommends a 5W-30, but due to high miles (120,000+) and some valve train noise when the engine's cold, I'd like to use a thicker oil on the next change. I switched to a 10W-30 over a year ago after noticing the noise.
Is a 10W-40 a step up in viscosity from a 10W-30, so to speak? FYI, I live in Michigan...cold winters and warm summers. Thank you!What's the engine oil viscosity ';upgrade'; from a 10W-30 oil?
the thicker oil can actually make the noise louder because the oil is thicker and harder to get through the ports(especially in cold mornings) i would suggest 5-30 in the winter and 10-30 in the summer. most of the time the noise comes from the valves. have someone check them and tighten them if needed.What's the engine oil viscosity ';upgrade'; from a 10W-30 oil?
Using a higher vescosity oil b/c of valvetrain noise is the wrong thing to do. Your engine is making noise for a reason. Chances are, you have too much bearing slop in the engine i.e. Cam bearings and or crank bearings. Adding ';Thicker oil'; will only make the problems worse in the long run. The manufacturer specifies the correct oil to use in the engine, use it. Sounds to me like your engine is in need of service.
I wouldn't run full synthetic with that many miles, your engine would leak from every seal and gasket. I'd use a 10w-40, and put up with the noise. Thicker oil (20w) in the winter would take longer to reach your valvetrain/camshaft, and would actually cause increased wear. If all you can complain about is valvetrain noise from your 3100 with that many miles, your actually doing quite well. Keep the oil changed, sounds like she's gonna last a while longer yet!
Thicker oil will make things worse. You get less oil flow, it takes longer to get to places during cold starts and you get less oil in tight spots.
well yes and no. The 10w40 is the next step on the viscosity scale. But it is still a 10 weight at start and then instead of a 30 weight it will be a 40 weight at operating temperature. If you have lifter noise or any other for that matter that is not normal the oil will not help anything. All you are doing by putting thicker oil in is diluting the noise. Just like putting ear plugs in to not hear the undesirable. The problem is still there you just cant hear it anymore. It will do that for a while and then you will hear it again. Whats next? maybe put 15w40 or 20w50 in. All you are doing is putting off a fix. but yes 10w40 is the next oil grade from 10w30.
I would go with either the 5W-30 for high mileage or the 10W-30 for high mileage. Warmer weather is on the way so I would step up the viscosity yet. It would also be a good idea to check you seals. Higher mileage u could have a seal or gasket that are getting hard.
10-40, 20-40 or 20-50. However, I saw somewhere a 15-30 but not sure where.
However, your asking a Viscosity question and that all depends upon the emollients put in at the refinery's. I much prefer a full synthetic if your concerned with an engines oil viscosity breaking down and they all do, crude grades however do it faster. Those other numbers we just floated around are just the thickness of oil at cold or warm temps. Just keep it changed every 3k miles and 5k for full synthetic.
Is a 10W-40 a step up in viscosity from a 10W-30, so to speak? FYI, I live in Michigan...cold winters and warm summers. Thank you!What's the engine oil viscosity ';upgrade'; from a 10W-30 oil?
the thicker oil can actually make the noise louder because the oil is thicker and harder to get through the ports(especially in cold mornings) i would suggest 5-30 in the winter and 10-30 in the summer. most of the time the noise comes from the valves. have someone check them and tighten them if needed.What's the engine oil viscosity ';upgrade'; from a 10W-30 oil?
Using a higher vescosity oil b/c of valvetrain noise is the wrong thing to do. Your engine is making noise for a reason. Chances are, you have too much bearing slop in the engine i.e. Cam bearings and or crank bearings. Adding ';Thicker oil'; will only make the problems worse in the long run. The manufacturer specifies the correct oil to use in the engine, use it. Sounds to me like your engine is in need of service.
I wouldn't run full synthetic with that many miles, your engine would leak from every seal and gasket. I'd use a 10w-40, and put up with the noise. Thicker oil (20w) in the winter would take longer to reach your valvetrain/camshaft, and would actually cause increased wear. If all you can complain about is valvetrain noise from your 3100 with that many miles, your actually doing quite well. Keep the oil changed, sounds like she's gonna last a while longer yet!
Thicker oil will make things worse. You get less oil flow, it takes longer to get to places during cold starts and you get less oil in tight spots.
well yes and no. The 10w40 is the next step on the viscosity scale. But it is still a 10 weight at start and then instead of a 30 weight it will be a 40 weight at operating temperature. If you have lifter noise or any other for that matter that is not normal the oil will not help anything. All you are doing by putting thicker oil in is diluting the noise. Just like putting ear plugs in to not hear the undesirable. The problem is still there you just cant hear it anymore. It will do that for a while and then you will hear it again. Whats next? maybe put 15w40 or 20w50 in. All you are doing is putting off a fix. but yes 10w40 is the next oil grade from 10w30.
I would go with either the 5W-30 for high mileage or the 10W-30 for high mileage. Warmer weather is on the way so I would step up the viscosity yet. It would also be a good idea to check you seals. Higher mileage u could have a seal or gasket that are getting hard.
10-40, 20-40 or 20-50. However, I saw somewhere a 15-30 but not sure where.
However, your asking a Viscosity question and that all depends upon the emollients put in at the refinery's. I much prefer a full synthetic if your concerned with an engines oil viscosity breaking down and they all do, crude grades however do it faster. Those other numbers we just floated around are just the thickness of oil at cold or warm temps. Just keep it changed every 3k miles and 5k for full synthetic.
What is the best viscosity grade of oil for modern hi-rpm CRDI diesel engines?
the one recommend it in the owners manual.
30+ years Mechanic for a outstanding living.
diesel and gas engines.
master certification (in both autos and trucks)
shop owner (ten mechanics in the floor ,4 of them females)What is the best viscosity grade of oil for modern hi-rpm CRDI diesel engines?
Dello 400. 30wt. Any auto parts store that sells oil should have it.What is the best viscosity grade of oil for modern hi-rpm CRDI diesel engines?
Commons or Havoline 15W-40
The one it recomends in the owners manual.!!!!!blemishes
30+ years Mechanic for a outstanding living.
diesel and gas engines.
master certification (in both autos and trucks)
shop owner (ten mechanics in the floor ,4 of them females)What is the best viscosity grade of oil for modern hi-rpm CRDI diesel engines?
Dello 400. 30wt. Any auto parts store that sells oil should have it.What is the best viscosity grade of oil for modern hi-rpm CRDI diesel engines?
Commons or Havoline 15W-40
The one it recomends in the owners manual.!!!!!
What is the order of viscosity here: maple syrup, ketchup, oil, hot lava, air ?
Lowest to highest viscosity
Air
Oil
Maple Syrup (Real Maple Syrup... not the maple flavored corn syrup like Mrs Butterworth or Aunt Jemima)
Ketchup
Hot Lava
Edit... People have ketchup thinner than oil or syrup?!?! The name brand stuff is pretty thick... Heinz, Del Monte... etc.What is the order of viscosity here: maple syrup, ketchup, oil, hot lava, air ?
Highest to lowest:
hot lava, maple syrup, ketchup, oil(depends on the kind), then air ..i think
=]What is the order of viscosity here: maple syrup, ketchup, oil, hot lava, air ?
Lowest--%26gt;Greatest
air, ketchup, maple syrup, oil, hot lava
highest to lowest
hot lava, maple syrup, oil, ketchup, air.
air, oil (assuming cooking oil), ketchup, syrup. lava
high to low: hot lava, syrup, ketchup, oil, air
adasdasas
air
maple syrup
ketchup
oil
hot lava
do your own homework lol
Air
Oil
Maple Syrup (Real Maple Syrup... not the maple flavored corn syrup like Mrs Butterworth or Aunt Jemima)
Ketchup
Hot Lava
Edit... People have ketchup thinner than oil or syrup?!?! The name brand stuff is pretty thick... Heinz, Del Monte... etc.What is the order of viscosity here: maple syrup, ketchup, oil, hot lava, air ?
Highest to lowest:
hot lava, maple syrup, ketchup, oil(depends on the kind), then air ..i think
=]What is the order of viscosity here: maple syrup, ketchup, oil, hot lava, air ?
Lowest--%26gt;Greatest
air, ketchup, maple syrup, oil, hot lava
highest to lowest
hot lava, maple syrup, oil, ketchup, air.
air, oil (assuming cooking oil), ketchup, syrup. lava
high to low: hot lava, syrup, ketchup, oil, air
adasdasas
air
maple syrup
ketchup
oil
hot lava
do your own homework lol
Why does oil with lower viscosity flow better in cold weather?
explain a lot please?Why does oil with lower viscosity flow better in cold weather?
Viscosity is a measure of the ';thickness'; of a liquid. For instance, water has less viscosity than honey. Oil with lower viscosity flows better because more viscous liquids may solidify or come close to solidifying, reducing how well they flow
Viscosity is a measure of the ';thickness'; of a liquid. For instance, water has less viscosity than honey. Oil with lower viscosity flows better because more viscous liquids may solidify or come close to solidifying, reducing how well they flow
Why is calculating viscosity important in the oil industry?
I've got a coursework to hand in and i think I'll get a better grade if I say how finding out the viscosity of oil help solve problems. There is a definite link. Can someone help?Why is calculating viscosity important in the oil industry?
Just knowing what I know about oil and gas law, the viscosity of oil is important because we have to use machines to drill and extract the oil from the ground. The thicker or more viscous the oil, the more friction is caused along the extraction pipes. This requires more power (read: $) to extract it.
Just knowing what I know about oil and gas law, the viscosity of oil is important because we have to use machines to drill and extract the oil from the ground. The thicker or more viscous the oil, the more friction is caused along the extraction pipes. This requires more power (read: $) to extract it.
What viscosity oil is recommended for my 2005 Subaru wrx sti?
Mobil 1 synthetic 5W-30 thats all I useWhat viscosity oil is recommended for my 2005 Subaru wrx sti?
If you look on the oil fill cap for the car, it has it printed on the cap what oil as well as how much to put in. If the caps gone or the printing is worn off, then all you need to do is call either a Napa auto parts or a Shuck's parts store. They'll have the information on the computer for your car's engine and year.What viscosity oil is recommended for my 2005 Subaru wrx sti?
Best bet is to check the manual, but personally, I use 5w-30 year round in my 07 WRX. Only time I would go higher vis than that is extended use in high temps, or if your car sees a lot of track use
It should say in your manual. Mobil 1 is widely known to burn in our motors.
most cars unless your in very hot temp use 5w30 is recommended for most cars
Synthetic 5W30 or 10W30 is required on these bad @## cars.
If you look on the oil fill cap for the car, it has it printed on the cap what oil as well as how much to put in. If the caps gone or the printing is worn off, then all you need to do is call either a Napa auto parts or a Shuck's parts store. They'll have the information on the computer for your car's engine and year.What viscosity oil is recommended for my 2005 Subaru wrx sti?
Best bet is to check the manual, but personally, I use 5w-30 year round in my 07 WRX. Only time I would go higher vis than that is extended use in high temps, or if your car sees a lot of track use
It should say in your manual. Mobil 1 is widely known to burn in our motors.
most cars unless your in very hot temp use 5w30 is recommended for most cars
Synthetic 5W30 or 10W30 is required on these bad @## cars.
I asked what motor oil viscosity to put in my 2007 Volkswagen GTI and they could only guess.?
It does not seem to be in my owners manual. Would someone that knows for sure please let me know.I asked what motor oil viscosity to put in my 2007 Volkswagen GTI and they could only guess.?
If you're going conventional oil, 5w30 in cool/cold weather, 10w30 in summer.
Synthetic, use 0w30 in the cold, 5w40 in summer.I asked what motor oil viscosity to put in my 2007 Volkswagen GTI and they could only guess.?
it is in there under user maintenance information and oil in the index. Viscosity chart. shows a thermometer with recommended oil weights. Energy saving oil is 5wt which is good most the time except in Texas where high temps make me use 10 wt x 40wt. Or if yours is turbo buy Castrol Synethic oil in 10/ 40 or 10 /50 wt look at the chart 20/50 in high temps?
I checked with shell oil co and they said that they recomended 5-40w helix but I am presuming that your car is a 2litre turbo or non turbo hopefully this would help you if in doubt check shell oil co web site.
~Mobile One
~Synthetic
~10w 30
The GTi uses Castrol SLX Longlife II fully synthetic oil of 0W-30 viscosity. This is the stuff that should be replaced, if your car is on the longlife service regime. All new GTis should be on longlife, unless the oil has been replaced.
Other than that, you are of course free to use any oil you might like, as long as its fully synthetic high quality oil, I doubt you can go wrong with 5-40 or 10-40.
10 w 40 wilbe fine.
Synthetic!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
5W-30 should be adequate.
Sometimes in life you need to choose- so figure out a brand that will be available to you and stay with it.
These 10W-40 people are trying to ruin your car with their ignorance.
meanwhile, please read your owners manual!
ASE Cert Auto Tech, 92 GTI16V 2.0L
If you're going conventional oil, 5w30 in cool/cold weather, 10w30 in summer.
Synthetic, use 0w30 in the cold, 5w40 in summer.I asked what motor oil viscosity to put in my 2007 Volkswagen GTI and they could only guess.?
it is in there under user maintenance information and oil in the index. Viscosity chart. shows a thermometer with recommended oil weights. Energy saving oil is 5wt which is good most the time except in Texas where high temps make me use 10 wt x 40wt. Or if yours is turbo buy Castrol Synethic oil in 10/ 40 or 10 /50 wt look at the chart 20/50 in high temps?
I checked with shell oil co and they said that they recomended 5-40w helix but I am presuming that your car is a 2litre turbo or non turbo hopefully this would help you if in doubt check shell oil co web site.
~Mobile One
~Synthetic
~10w 30
The GTi uses Castrol SLX Longlife II fully synthetic oil of 0W-30 viscosity. This is the stuff that should be replaced, if your car is on the longlife service regime. All new GTis should be on longlife, unless the oil has been replaced.
Other than that, you are of course free to use any oil you might like, as long as its fully synthetic high quality oil, I doubt you can go wrong with 5-40 or 10-40.
10 w 40 wilbe fine.
Synthetic!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
5W-30 should be adequate.
Sometimes in life you need to choose- so figure out a brand that will be available to you and stay with it.
These 10W-40 people are trying to ruin your car with their ignorance.
meanwhile, please read your owners manual!
ASE Cert Auto Tech, 92 GTI16V 2.0L
What viscosity of gear oil and how much do I need for a 01 Mitsu Eclipse 6 Cylinder?
It has a manual transmission.What viscosity of gear oil and how much do I need for a 01 Mitsu Eclipse 6 Cylinder?
75/85.
2.5 Litres will do it.blemishes
75/85.
2.5 Litres will do it.
Does anyone know what viscosity grade engine oil a renault 11 gtl 1986 uses?
i live in Malta so in winter temperatures don't fall below 10 degrees celcius but in summer it gets very hot, so i figure 10W30 engine oil would be best. what do you think?Does anyone know what viscosity grade engine oil a renault 11 gtl 1986 uses?
I would go for the 5-30W for the winter then go back to your 10-30W in the summer. This will help you engine in both winter and summer.
I would go for the 5-30W for the winter then go back to your 10-30W in the summer. This will help you engine in both winter and summer.
Experiment to determine the viscosity of motor oil using the method of falling sphere?
in the above experiment,why is that the sphere should be cleaned.also what would the presence of (a)temperature variation and(b) bubbles in the oil do to the accuracy of the experiment. Also for the purpose of the experiment,what complication is caused by a tube of finite dimensions being used to contain the oil instead of using a container of finite dimension.Experiment to determine the viscosity of motor oil using the method of falling sphere?
Particles on the ball add additional friction.
Temperature may change the viscosity e.g.; molasses.
Bubbles change (reduce) the viscosity of the fluid.
A lot of bubbles will also introduce the possibility that the ball will follow the path of least resistance and not fall straight down. This will screw up your measurements because the distance traveled by the ball will not be a constant factor.
.Experiment to determine the viscosity of motor oil using the method of falling sphere?
The falling sphere is acted upon by a constant force (gravity) and viscous friction. If the sphere is not clean you cannot use it as a standard because there is no standard dirt. In most liquids, viscous friction varies with temperature, so the speed of falling will vary. It should be obvious that falling through air is faster than falling through the liquid, so bubbles will cause the sphere to fall faster.
When the sphere falls in a tube, the liquid has to move from below the sphere to above it. This is work which will be subtracted from the energy of the falling sphere thus slowing it. In an infinite container the liquid is pushed aside which is less work.
Particles on the ball add additional friction.
Temperature may change the viscosity e.g.; molasses.
Bubbles change (reduce) the viscosity of the fluid.
A lot of bubbles will also introduce the possibility that the ball will follow the path of least resistance and not fall straight down. This will screw up your measurements because the distance traveled by the ball will not be a constant factor.
.Experiment to determine the viscosity of motor oil using the method of falling sphere?
The falling sphere is acted upon by a constant force (gravity) and viscous friction. If the sphere is not clean you cannot use it as a standard because there is no standard dirt. In most liquids, viscous friction varies with temperature, so the speed of falling will vary. It should be obvious that falling through air is faster than falling through the liquid, so bubbles will cause the sphere to fall faster.
When the sphere falls in a tube, the liquid has to move from below the sphere to above it. This is work which will be subtracted from the energy of the falling sphere thus slowing it. In an infinite container the liquid is pushed aside which is less work.
Why would it be better to use oil of lower viscosity to lubricate engines in vehicles used in polar expedition?
It is not a matter of lower viscosity, it is a matter of the correct viscosity at a much lower environmental temperature. All oils are less viscous when warmed up, even the so-called multigrade oils, so the oil which would be appropriate at sub-zero temperatures would be relatively thin, and wholly inappropriate, in a normal climate.Why would it be better to use oil of lower viscosity to lubricate engines in vehicles used in polar expedition?
Oil becomes more viscous at lower temperatures. Higher-viscosity oil makes a ';freezing-up'; less likely.
Oil becomes more viscous at lower temperatures. Higher-viscosity oil makes a ';freezing-up'; less likely.
What's a good way to test viscosity in oil samples? (other than using bbs or bubbles)?
I'm doing an engineering project on sampling and testing oil for viscosity. I was wondering if anyone knew of any other good methods other than dropping ball bearings or blowing bubbles through it? Thanks in advance :o)What's a good way to test viscosity in oil samples? (other than using bbs or bubbles)?
Get a viscos meter, which works by your placing a drop of oil on a glass screen which is then viewed through a prism, done a microscope tube and the viscosity can be read of against a clearly visible scale.
Easy peasy, used all the time in drawing down machinery to ensure consistency of the lubrication and preventing unecessary shutdown and lost production...What's a good way to test viscosity in oil samples? (other than using bbs or bubbles)?
A quick trick I use in the field is to insert my pencil half way and time how long it takes to drip off of the tip. I can sort out viscosity quickly with that for simple comparison.
Use a viscosity cup. This is a calibrated cup that looks like a small plastic funnel, which you fill and record the time your fluid takes to pass.
Get a viscos meter, which works by your placing a drop of oil on a glass screen which is then viewed through a prism, done a microscope tube and the viscosity can be read of against a clearly visible scale.
Easy peasy, used all the time in drawing down machinery to ensure consistency of the lubrication and preventing unecessary shutdown and lost production...What's a good way to test viscosity in oil samples? (other than using bbs or bubbles)?
A quick trick I use in the field is to insert my pencil half way and time how long it takes to drip off of the tip. I can sort out viscosity quickly with that for simple comparison.
Use a viscosity cup. This is a calibrated cup that looks like a small plastic funnel, which you fill and record the time your fluid takes to pass.
How does the viscosity of oil vary with temperature?
i need help for a project on this topic.
How does the viscosity of oil vary in temperature?
how can u find the viscosity adn what do you sue to measure the temperature?
WHY does it vary??
if you can, please list some sources from the internet.
thank youHow does the viscosity of oil vary with temperature?
viscosity raise when the temperature goes down.
it varies because molecules of the fluids, when temperature is low, have less energy so they can't move very much. So the fluids seems to be harder. When the temperature is high, molecules have more energy and they can move more easily, so the the fluids is more smooth.
there is some table that show the relation between viscosity and temperature. Or you can use some empiric equation.How does the viscosity of oil vary with temperature?
I think (this is just a guess) that the viscosity varies because when the temperature drops, the molecules slow down and are less willing to move as to when they are heated up and the molecules are bouncing around like crazy, thus, sliding along easily. This is just me thinking and you may want to research this theory more. Hope it was some help! =)
How does the viscosity of oil vary in temperature?
how can u find the viscosity adn what do you sue to measure the temperature?
WHY does it vary??
if you can, please list some sources from the internet.
thank youHow does the viscosity of oil vary with temperature?
viscosity raise when the temperature goes down.
it varies because molecules of the fluids, when temperature is low, have less energy so they can't move very much. So the fluids seems to be harder. When the temperature is high, molecules have more energy and they can move more easily, so the the fluids is more smooth.
there is some table that show the relation between viscosity and temperature. Or you can use some empiric equation.How does the viscosity of oil vary with temperature?
I think (this is just a guess) that the viscosity varies because when the temperature drops, the molecules slow down and are less willing to move as to when they are heated up and the molecules are bouncing around like crazy, thus, sliding along easily. This is just me thinking and you may want to research this theory more. Hope it was some help! =)
How Viscosity of an oil is related to pressure variations?
Is there any relation to find the viscosity of an oil at various pressures?? Thanks in advance.How Viscosity of an oil is related to pressure variations?
Viscosity is independent of the pressure.
However, it is very much dependent on the temperature. For gases, viscosity increases with (increasing) temperature; whereas for liquids, viscosity decreases with (increasing) temperature.blemishes
Viscosity is independent of the pressure.
However, it is very much dependent on the temperature. For gases, viscosity increases with (increasing) temperature; whereas for liquids, viscosity decreases with (increasing) temperature.
What Viscosity Gear Oil Do I Use?
I own a 1988 Camaro with a 5.0 V8, I want to perform a tranny flush and I was told that I should do the rear end while I am flushing the tranny. What viscosity should I use, and is it for the differential or the Tranny?What Viscosity Gear Oil Do I Use?
read your manual luke
the lubes are totally differentWhat Viscosity Gear Oil Do I Use?
sae 90
the rear diff fluid for that year and make would be a 80w90 GL5 gear oil. If you buy Pennzoil it will already have the limited slip additive in it. If you buy another brand you may have to buy the limited slip additive and add it seperatly. And yes the fluid is different from the tranny. If it is a stick shift then it most likely takes either dexron III or GM Synchromesh which is a synthetic oil. You will probably have to get the synchromesh at teh dealership. If it is an automatic then it takes dexron III for sure. They dont make Dexron III anymore but they have superceded it with Dexron VI. Or you can get a multi-vehicle tranny fluid. The Dexron VI is very expensive. So look for multi-vehicle or most stores have a few more months to sell Dexron III before if just has to be called ATF.
manual trans use several diff fluids check owners manual or have parts store look it up by application. rear end 75w90 should work if limited slip use a friction modifier additive
they use different weight oil.the diff is a heavier oil and the trans is less.call a dealership,and get the correct weight. and this is a very good idea, and i need to do this on my pickup.... it's a messy thing,but it's worth it...and i would use a synthetic oil in both of them...
80w90. this i the most common gear lube. the tranny, if is it an auto. takes dexron 3 tranny fluid, and if it is a manual it takes 80w90 also. you can buy the expensive gm gl5 syncromesh oil for both but it is a little on the pricey side. i personally just use 80w90 for all rear ends and most manuals, although some maunuals use auto. trans fluid. the parts store can tell you the recomended fluid for your particular needs.
read your manual luke
the lubes are totally differentWhat Viscosity Gear Oil Do I Use?
sae 90
the rear diff fluid for that year and make would be a 80w90 GL5 gear oil. If you buy Pennzoil it will already have the limited slip additive in it. If you buy another brand you may have to buy the limited slip additive and add it seperatly. And yes the fluid is different from the tranny. If it is a stick shift then it most likely takes either dexron III or GM Synchromesh which is a synthetic oil. You will probably have to get the synchromesh at teh dealership. If it is an automatic then it takes dexron III for sure. They dont make Dexron III anymore but they have superceded it with Dexron VI. Or you can get a multi-vehicle tranny fluid. The Dexron VI is very expensive. So look for multi-vehicle or most stores have a few more months to sell Dexron III before if just has to be called ATF.
manual trans use several diff fluids check owners manual or have parts store look it up by application. rear end 75w90 should work if limited slip use a friction modifier additive
they use different weight oil.the diff is a heavier oil and the trans is less.call a dealership,and get the correct weight. and this is a very good idea, and i need to do this on my pickup.... it's a messy thing,but it's worth it...and i would use a synthetic oil in both of them...
80w90. this i the most common gear lube. the tranny, if is it an auto. takes dexron 3 tranny fluid, and if it is a manual it takes 80w90 also. you can buy the expensive gm gl5 syncromesh oil for both but it is a little on the pricey side. i personally just use 80w90 for all rear ends and most manuals, although some maunuals use auto. trans fluid. the parts store can tell you the recomended fluid for your particular needs.
Oil Viscosity Recommendation?
I always use 5w/30 oil in winter and 10w/30 oil in summer. Now in my new vehicle, the manual recommends using 5w/20 all year round. I live in a northern climate where the temp can drop to -20 to -40 below zero in winter and can be as high as 100 to 110 in summer. Should I go by the manufacturers recommendation or should I switch between the 5w and 10w as I always have ?Oil Viscosity Recommendation?
Here is the RIGHT answer. 5W-20 ...
. The W doesn't mean WEIGHT it means WINTER...As in the viscosity at very low temps... ..then the 5W part is correct for cold temps and is necessary to lube the tiny oil galleries in newer cars in warmer weather also..
A 10W oil may not be viscous enough at start-up to lube the top of the engine at startup even in warm weather....So stick with the 5W always as recommended.
The 20 part is also necessary for the tight bearing clearances on your crankshaft etc. Again the viscosity of a 5W30 may not pump into the bearings fast enough when you fire it up.
There are engineers 100 years of auto technology going into what oil to put in the vehicle. So I would follow the specs. You have a NEW vehicle. Don't mess up your warranty experimenting with oil. Good Luck!Oil Viscosity Recommendation?
I'd go by what the manufacture says, there should be a temperature chart in the owners manual that says which temps are safe for that viscosity of oil.
It sounds like you have maybe a Ford/Mazda? Just cause they call for the grade of oil. Anyway. they test their vehicles in all sorts of climates (including a good northern central US winter of -50). And they choose the most proper grade of oil. Nowadays cars use oil flow and pressure to engage a variable valve system or other engine management systems, so using the manufacturer recommended is more important than ever.
5-w-20 is a good oil for cold climates,that would be what i would use and it being so cold out,the oil is thin enough to let the engine turn over freely when the temperatures are that cold out,you can use the same oil year around in the newer vehicles,they recommend doing this now on the newer ones,also look in the owners manual it has the proper weights of the oil in it,good luck with it.
My best suggestion would be to check with the local dealer and ask if there are any technical service bulletins concerning this issue. Don't be afraid to ask for a personal recommedation. about this also.
If it is still under warranty.Go by the manufacturers recommendation.
I live in Florida heat and run 0W-30 Amsoil synthetic
I'm guessing you have a Ford or Honda. The 20 viscosity is so auto manufacturers can meet CAFE (Corporate Average Fuel Economy) standards. I would be leary of a 20 weight oil in 100+ temperatures, unless it had the film strength and shear stability of a synthetic like Amsoil 0W-20 http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>
. Synthetics perform better in extreme heat and cold and are true all-season oils. Type in your year, make, model at my website below at the Online Product Guide and look up what Amsoil synthetics are recommended for your vehicle.
Here is the RIGHT answer. 5W-20 ...
. The W doesn't mean WEIGHT it means WINTER...As in the viscosity at very low temps... ..then the 5W part is correct for cold temps and is necessary to lube the tiny oil galleries in newer cars in warmer weather also..
A 10W oil may not be viscous enough at start-up to lube the top of the engine at startup even in warm weather....So stick with the 5W always as recommended.
The 20 part is also necessary for the tight bearing clearances on your crankshaft etc. Again the viscosity of a 5W30 may not pump into the bearings fast enough when you fire it up.
There are engineers 100 years of auto technology going into what oil to put in the vehicle. So I would follow the specs. You have a NEW vehicle. Don't mess up your warranty experimenting with oil. Good Luck!Oil Viscosity Recommendation?
I'd go by what the manufacture says, there should be a temperature chart in the owners manual that says which temps are safe for that viscosity of oil.
It sounds like you have maybe a Ford/Mazda? Just cause they call for the grade of oil. Anyway. they test their vehicles in all sorts of climates (including a good northern central US winter of -50). And they choose the most proper grade of oil. Nowadays cars use oil flow and pressure to engage a variable valve system or other engine management systems, so using the manufacturer recommended is more important than ever.
5-w-20 is a good oil for cold climates,that would be what i would use and it being so cold out,the oil is thin enough to let the engine turn over freely when the temperatures are that cold out,you can use the same oil year around in the newer vehicles,they recommend doing this now on the newer ones,also look in the owners manual it has the proper weights of the oil in it,good luck with it.
My best suggestion would be to check with the local dealer and ask if there are any technical service bulletins concerning this issue. Don't be afraid to ask for a personal recommedation. about this also.
If it is still under warranty.Go by the manufacturers recommendation.
I live in Florida heat and run 0W-30 Amsoil synthetic
I'm guessing you have a Ford or Honda. The 20 viscosity is so auto manufacturers can meet CAFE (Corporate Average Fuel Economy) standards. I would be leary of a 20 weight oil in 100+ temperatures, unless it had the film strength and shear stability of a synthetic like Amsoil 0W-20 http://www.amsoil.com/redirect.cgi?zo=14鈥?/a>
. Synthetics perform better in extreme heat and cold and are true all-season oils. Type in your year, make, model at my website below at the Online Product Guide and look up what Amsoil synthetics are recommended for your vehicle.
The more mileage a car has, the thicker viscosity oil I should use?
For example if my car has 0- 60,000 miles Is hould use 5W-30.
If my car has 60,000 -120,000 miles I should use 10w -30 and so forth.
Is this true? I have a 2001 Maxima with 109,000 miles. I just bought it used.The more mileage a car has, the thicker viscosity oil I should use?
Maurice, Unless the engine leaks or uses an unusual amount of engine oil do to warn parts stick to the recommended 5W-30 oil viscosity for the following reasons: 80% of all engine wear occurs during cold starts. It's to your motor's advantage for the oil pump to force the greatest volume of oil to critical frictional surfaces quickly. The oil pump can not force thicker oil through the same size oil galleries as fast.
Low viscosity oil actually cools the moving parts of the engine faster than higher viscosity oil. If Nissan recognized that higher viscosity oil should be used as mileage increased that fact would be in the manual in the glove compartment.
Some will advise jumping into 10W-40 which is not an energy saving motor oil. No American built car or truck manufacturer ever recommends using this oil.
It's somewhat difficult to believe but the Joe Gibbs Nextel Cup Racing Team uses a full synthetic racing oil - 0W viscosity for qualifying, 0W-20 when restrictor plates are used during races and 5W-20 when restrictor plates are not used when racing. Check this out on the Joe Gibbs Racing Oil site.
If an 850 horsepower motor lives for 500 miles at 9,500 RPM's at the end of the straightaways, your car will be more than adequately protected with the factory recommended 5W-30.The more mileage a car has, the thicker viscosity oil I should use?
really if you do a oil change an dit uses any oil between oil changes you can go up in weight might slow down the oil burning i run 10w40 all the time but yes as the car gets older you need to up the weight but you dont have to but sometimes it stop or slow the lost down id try 10w30 first any brand and drive it if it uses oil then go up to 10w40 i wouldnt go over that... really you can use any oil and wouldnt hurt
NO.
Stick to the factory recommendation. PERIOD.
===
My 94 civic has 188K miles and I still use factory 5w30. And it doesn't even burn one drop between oil change.
Running ticker oil is a good way to ruin your engine (as they don't flow as well).
====
People use ticker oil because the older engine with larger gap will burn more oil. But that's because the engine was already neglected and the engine is worn. Ticker oil is a BAD band-aid. It may SEEM to help with burning oil, but it ACTUALLY lubricates the engine less and accelerates the engine wear.
Good luck.......
No!!! Use the oil that the manufacturer suggests in the owners manual. If you have no idea go with 5W30. The thick oil will kill the engine in the winter if you are not careful.
if the motor is leaking just replace the seals and gaskets.if the motor is burning oil get a small rebuild kit or change the motor.always stick to factory specs
Viscosity should depend on where you live. Hotter climate = less, cold = more.
If my car has 60,000 -120,000 miles I should use 10w -30 and so forth.
Is this true? I have a 2001 Maxima with 109,000 miles. I just bought it used.The more mileage a car has, the thicker viscosity oil I should use?
Maurice, Unless the engine leaks or uses an unusual amount of engine oil do to warn parts stick to the recommended 5W-30 oil viscosity for the following reasons: 80% of all engine wear occurs during cold starts. It's to your motor's advantage for the oil pump to force the greatest volume of oil to critical frictional surfaces quickly. The oil pump can not force thicker oil through the same size oil galleries as fast.
Low viscosity oil actually cools the moving parts of the engine faster than higher viscosity oil. If Nissan recognized that higher viscosity oil should be used as mileage increased that fact would be in the manual in the glove compartment.
Some will advise jumping into 10W-40 which is not an energy saving motor oil. No American built car or truck manufacturer ever recommends using this oil.
It's somewhat difficult to believe but the Joe Gibbs Nextel Cup Racing Team uses a full synthetic racing oil - 0W viscosity for qualifying, 0W-20 when restrictor plates are used during races and 5W-20 when restrictor plates are not used when racing. Check this out on the Joe Gibbs Racing Oil site.
If an 850 horsepower motor lives for 500 miles at 9,500 RPM's at the end of the straightaways, your car will be more than adequately protected with the factory recommended 5W-30.The more mileage a car has, the thicker viscosity oil I should use?
really if you do a oil change an dit uses any oil between oil changes you can go up in weight might slow down the oil burning i run 10w40 all the time but yes as the car gets older you need to up the weight but you dont have to but sometimes it stop or slow the lost down id try 10w30 first any brand and drive it if it uses oil then go up to 10w40 i wouldnt go over that... really you can use any oil and wouldnt hurt
NO.
Stick to the factory recommendation. PERIOD.
===
My 94 civic has 188K miles and I still use factory 5w30. And it doesn't even burn one drop between oil change.
Running ticker oil is a good way to ruin your engine (as they don't flow as well).
====
People use ticker oil because the older engine with larger gap will burn more oil. But that's because the engine was already neglected and the engine is worn. Ticker oil is a BAD band-aid. It may SEEM to help with burning oil, but it ACTUALLY lubricates the engine less and accelerates the engine wear.
Good luck.......
No!!! Use the oil that the manufacturer suggests in the owners manual. If you have no idea go with 5W30. The thick oil will kill the engine in the winter if you are not careful.
if the motor is leaking just replace the seals and gaskets.if the motor is burning oil get a small rebuild kit or change the motor.always stick to factory specs
Viscosity should depend on where you live. Hotter climate = less, cold = more.
What oil viscosity does the new honda accord specify?
5w20? 5w30?What oil viscosity does the new honda accord specify?
520 is what it says on the cap.
520 is what it says on the cap.
What oil viscosity should I get?
I just got a 1997 BMW M3 with 178XXX miles and somebody I know told me I needed to change the oil with 15W-50 Mobil 1 synthetic since it's got so many miles. Do you think that's good because it seems a bit thick to me, but I don't really know...What oil viscosity should I get?
15-50 is probably thicker than you need. if it says to use say 5-30 i would only go to like 10-40 unless its really worn out and uses oil fast. the bearings will get looser with miles no matter what oil you use. 15w-50 is probably ok but i would only use it if it says to use higher viscosity or if you live somewhere hot. ive heard people say not to switch to synthetic after lots of miles but ive yet to witness it hurting.What oil viscosity should I get?
15w-50 is a bit thick, no matter the climate and will slighty decrease gas mileage. I don't think a synthetic will do much good with so many miles either but, using a quality oil is a must. Castrol or Mobil 10W-30 would be my suggestion. Both offer ';special'; high mileage oil brands.
It depends on where you live. In warmer climates that's fine. Did the previous owner use synthetic as well? If that is not the case you may want to be careful because synthetic oils have a high detergent content can you car can develop hidden leaks.
I would ask the shop you take it to when you go to have your oil changed. If they recommend it then it's probably not a bad idea.
Not a good idea. Too thick oil will kill the engine with lack of lubrication. I'd stick with 5W30. (I assume that's what the owner's manual says.) High mileage does not necessarily equal high wear on the bearings, etc.blemishes
15-50 is probably thicker than you need. if it says to use say 5-30 i would only go to like 10-40 unless its really worn out and uses oil fast. the bearings will get looser with miles no matter what oil you use. 15w-50 is probably ok but i would only use it if it says to use higher viscosity or if you live somewhere hot. ive heard people say not to switch to synthetic after lots of miles but ive yet to witness it hurting.What oil viscosity should I get?
15w-50 is a bit thick, no matter the climate and will slighty decrease gas mileage. I don't think a synthetic will do much good with so many miles either but, using a quality oil is a must. Castrol or Mobil 10W-30 would be my suggestion. Both offer ';special'; high mileage oil brands.
It depends on where you live. In warmer climates that's fine. Did the previous owner use synthetic as well? If that is not the case you may want to be careful because synthetic oils have a high detergent content can you car can develop hidden leaks.
I would ask the shop you take it to when you go to have your oil changed. If they recommend it then it's probably not a bad idea.
Not a good idea. Too thick oil will kill the engine with lack of lubrication. I'd stick with 5W30. (I assume that's what the owner's manual says.) High mileage does not necessarily equal high wear on the bearings, etc.
Monday, April 26, 2010
What is the science behind multi viscosity oil?
There are additives added into the base oil to increase viscosity at higher temperatures (when oil tends to thin out until it is like water) and to decrease viscosity at low temperatures (when oil tends to thicken, sometimes to the consistency of mud!) Most of these are used specifically for their action in a specific temerature range. Most comercial motor oils have an additive package containing 6 to 8 diferent viscosity enhancers.What is the science behind multi viscosity oil?
In brief, these oils contain various polymers which increase the viscosity as the temperature increase. Most of the polymers are like rubber in chemical structure.
In brief, these oils contain various polymers which increase the viscosity as the temperature increase. Most of the polymers are like rubber in chemical structure.
What kind oil (brand and viscosity) would you recommend for my 2001 Nissan Pathfinder?
I'm thinking of using either castrol GTX or Mobil 1 10w30. Ive always used Valvoline Maxlife 10w40 in my jeeps in the past. I live in central Ohio.What kind oil (brand and viscosity) would you recommend for my 2001 Nissan Pathfinder?
5w-30 ValvoLine Synthetic.
I have a Nissan Titan and this is what I use!What kind oil (brand and viscosity) would you recommend for my 2001 Nissan Pathfinder?
Castrol GTX 10w30.
I love castrol... That is what my fleet uses. I would recommend whatever the dealer says. Its probally listed on the oil fill cap or just call the dealer.
5-30
I have a X-terra and that is recommended.
5w-30 ValvoLine Synthetic.
I have a Nissan Titan and this is what I use!What kind oil (brand and viscosity) would you recommend for my 2001 Nissan Pathfinder?
Castrol GTX 10w30.
I love castrol... That is what my fleet uses. I would recommend whatever the dealer says. Its probally listed on the oil fill cap or just call the dealer.
5-30
I have a X-terra and that is recommended.
Is it OK to mix oil of different viscosity? Is it likewise OK to mix synthetics with petroleum based oils?
For example: Mix 2 qts, of 5W-30 with 3 qts. of 10W-40. What will be the end result in the viscosity of the mixture. Why would I want to do this%26gt; Because I have too many of each. As regards to synthetics, the oil manufacturers stated that it's OK to mix synthetics with pertroleum based oils. After all the semi-synthetics such as the Syntec Blend is such type oil.Is it OK to mix oil of different viscosity? Is it likewise OK to mix synthetics with petroleum based oils?
All oils are compatible, thanks to the US military who established standards which make it so. You simply end up with a viscosity somewhere between the two oils and if you add synthetic you have a blend.Is it OK to mix oil of different viscosity? Is it likewise OK to mix synthetics with petroleum based oils?
No do not mix different weights of oil especially that different of weights. See the weight refers to what it is at startup and what it is at running temp. One screw up like that may not cause long term damage but if you were to do it alot it will mess up the motor.
NO. . . . Do not mix either. It is bad for your seals and gaskets. It will cause leakage the would require a rebuild.
yes you can. but why? It makes more sense to run one or the other. unless you trying to get a desired viscosity.
I don't think that is too good of an idea. I would want the oil all the same. I don't think that it will really make a difference, but it is just good form to have the same oil in the crankcase.
As for mixing the synthetics with regular oil, then you are losing the benefits of the synthetic with the higher temps. I wouldn't do it. But that is just my personal opinion.
good luck.
It will be fine! Synthetics can also be mixed in too as they make synthetic blends for cars.
Oil Viscosity
The viscosity of multi-weight motor oil is specified using two numbers. The first number is the viscosity when the oil is cold. This is followed by the letter W (which stands for winter, not weight), which is followed by the number that indicates the viscosity when the oil is at operating temperature. The higher the number the thicker the oil.
5W30 versus 10W30
Virtually all new passenger vehicles sold in the U.S. use either 5W30 or 10W30 oil. The difference between the two is that the 5W30 flows better when cold, so if you live in a cold climate or operate your vehicle in a cold climate during the winter months, you should use 5W30 if it is the preferred oil for your vehicle. If you live in a sub-tropical climate and don't operate your vehicle in cold climates, then 10W30 is acceptable as long as the manufacturer specifies that it is permissible to use it.
Is there a disadvantage to using an oil that flows better when cold, i.e. 5W30 versus 10W30?
Sometimes, but usually not. The crux of the issue is this: the bigger the difference between the cold oil viscosity and the hot oil viscosity, the more the volume of viscosity modifiers and the less the volume of base stock. If you are good about following the manufacturer's recommended oil change interval then stick with the 5W30 if that is the preferred oil for your vehicle, even if 10W30 is acceptable in warmer climates. Older cars may specify 10W30 only. This is because they need a little more viscosity when cold to keep a protective film on the cylinder walls. There have been instances where the larger amount of viscosity modifiers that are present in 5W30 have broken down due to excessive heat and have left carbon deposits on the valves, but this is extremely rare. The proper fix would be to reduce the excessive heat, but the workaround was to use an oil with less viscosity modifiers.
It's not ok to mix different viscosity's and not ok to mix synthetic and conventional motor oil..... don't mix these up....
Yes, you can mix oils of different weights as well as mixing petroleum and Synthetic. As for the result, it would be roughly a 8W-35. Mixing petrol and synth will give you some of the benefits of synthetics with a lower price tag. The main thing is to make sure you use a quality filter and regular oil change intervals.
well since all oil is compatible you can mix the different viscosity if you would like and the whole idea of conventional and synthetic is fine to mix especailly if you are converting all the way to synthethic from conventional which you have to blend together for a few oil changes before you go full syntethic there is nothing wrong with this if you are only doing this one time either
All oils are compatible, thanks to the US military who established standards which make it so. You simply end up with a viscosity somewhere between the two oils and if you add synthetic you have a blend.Is it OK to mix oil of different viscosity? Is it likewise OK to mix synthetics with petroleum based oils?
No do not mix different weights of oil especially that different of weights. See the weight refers to what it is at startup and what it is at running temp. One screw up like that may not cause long term damage but if you were to do it alot it will mess up the motor.
NO. . . . Do not mix either. It is bad for your seals and gaskets. It will cause leakage the would require a rebuild.
yes you can. but why? It makes more sense to run one or the other. unless you trying to get a desired viscosity.
I don't think that is too good of an idea. I would want the oil all the same. I don't think that it will really make a difference, but it is just good form to have the same oil in the crankcase.
As for mixing the synthetics with regular oil, then you are losing the benefits of the synthetic with the higher temps. I wouldn't do it. But that is just my personal opinion.
good luck.
It will be fine! Synthetics can also be mixed in too as they make synthetic blends for cars.
Oil Viscosity
The viscosity of multi-weight motor oil is specified using two numbers. The first number is the viscosity when the oil is cold. This is followed by the letter W (which stands for winter, not weight), which is followed by the number that indicates the viscosity when the oil is at operating temperature. The higher the number the thicker the oil.
5W30 versus 10W30
Virtually all new passenger vehicles sold in the U.S. use either 5W30 or 10W30 oil. The difference between the two is that the 5W30 flows better when cold, so if you live in a cold climate or operate your vehicle in a cold climate during the winter months, you should use 5W30 if it is the preferred oil for your vehicle. If you live in a sub-tropical climate and don't operate your vehicle in cold climates, then 10W30 is acceptable as long as the manufacturer specifies that it is permissible to use it.
Is there a disadvantage to using an oil that flows better when cold, i.e. 5W30 versus 10W30?
Sometimes, but usually not. The crux of the issue is this: the bigger the difference between the cold oil viscosity and the hot oil viscosity, the more the volume of viscosity modifiers and the less the volume of base stock. If you are good about following the manufacturer's recommended oil change interval then stick with the 5W30 if that is the preferred oil for your vehicle, even if 10W30 is acceptable in warmer climates. Older cars may specify 10W30 only. This is because they need a little more viscosity when cold to keep a protective film on the cylinder walls. There have been instances where the larger amount of viscosity modifiers that are present in 5W30 have broken down due to excessive heat and have left carbon deposits on the valves, but this is extremely rare. The proper fix would be to reduce the excessive heat, but the workaround was to use an oil with less viscosity modifiers.
It's not ok to mix different viscosity's and not ok to mix synthetic and conventional motor oil..... don't mix these up....
Yes, you can mix oils of different weights as well as mixing petroleum and Synthetic. As for the result, it would be roughly a 8W-35. Mixing petrol and synth will give you some of the benefits of synthetics with a lower price tag. The main thing is to make sure you use a quality filter and regular oil change intervals.
well since all oil is compatible you can mix the different viscosity if you would like and the whole idea of conventional and synthetic is fine to mix especailly if you are converting all the way to synthethic from conventional which you have to blend together for a few oil changes before you go full syntethic there is nothing wrong with this if you are only doing this one time either
What viscosity fork oil should i use for my dirtbike?
I have a 1985 rm 250, and my fork seals went bad and i was wandering what viscosity oil would be best to put back in them.What viscosity fork oil should i use for my dirtbike?
use 5w in the north and 10w in the south
use 5w in the north and 10w in the south
How Do I measure Viscosity of Oil?
I'm doing a science experiment in which we must test the viscosity of cooking oils in different temperatures. I thought of possibly putting the product of the heated or cooled oils into a funnel over a cup and recording the amount of time the oil takes to drop or the amount of oil in the cup after an amount of time. Any other ideas on how I can measure viscosity?How Do I measure Viscosity of Oil?
in laboratory u may have viscometer namely like ostwald viscometer and saybolt viscometer and all. try those. but the principle u use is correct!!!
in laboratory u may have viscometer namely like ostwald viscometer and saybolt viscometer and all. try those. but the principle u use is correct!!!
How does it matter to you to know how temperature affects viscosity of oil? Why would you care?
How does it matter to you to know how temperature affects viscosity of oil? Why would you care?How does it matter to you to know how temperature affects viscosity of oil? Why would you care?
Well it would quite possibly help me make a decision as to what motor oil to buy depending on the climate/season.How does it matter to you to know how temperature affects viscosity of oil? Why would you care?
Maybe you might want to, oh, make almost anything with lubricated moving parts? Like a car, or an airplane, or an elevator? If you don't know how temperature effects the oil, the engine (etc.) may sieze up, causing catastrophic system failure.
in various tpes of hydraulic equipment not knowing the temperature of the oil your using may burn or overheat
the motor or pump running the system, To cold and the oil circulates slower and does'nt lubricate internal moving
parts , and if it's to hot oil breaks down becoming thinner
losing its viscousity and lubricating properties. This also
causes internal parts and bearings to overheat,sometimes,
causing explosive results and if you have wrong place, wrong time syndrome , you may earn the nickname stubby.
Ever have to buy an engine for your car? I didn't think so.
The thickness of oil needs to vary in different temps and climates. Thicker oils should be used for hotter seasons or climates whereas thinner oil is better in the cold. It will make your engine last longer.blemishes
Well it would quite possibly help me make a decision as to what motor oil to buy depending on the climate/season.How does it matter to you to know how temperature affects viscosity of oil? Why would you care?
Maybe you might want to, oh, make almost anything with lubricated moving parts? Like a car, or an airplane, or an elevator? If you don't know how temperature effects the oil, the engine (etc.) may sieze up, causing catastrophic system failure.
in various tpes of hydraulic equipment not knowing the temperature of the oil your using may burn or overheat
the motor or pump running the system, To cold and the oil circulates slower and does'nt lubricate internal moving
parts , and if it's to hot oil breaks down becoming thinner
losing its viscousity and lubricating properties. This also
causes internal parts and bearings to overheat,sometimes,
causing explosive results and if you have wrong place, wrong time syndrome , you may earn the nickname stubby.
Ever have to buy an engine for your car? I didn't think so.
The thickness of oil needs to vary in different temps and climates. Thicker oils should be used for hotter seasons or climates whereas thinner oil is better in the cold. It will make your engine last longer.
How does the viscosity of oil effect the performance of a car?
I know that the viscosity raises when the temperature goes down and the viscosity decreases when the temperature rises, but how does that affect the performance of the car?How does the viscosity of oil effect the performance of a car?
Viscosity is another word for how thick the oil is. In high temperatures, the oil heats up and gets thinner., like water. When it is cold the oil gets thicker, like honey. This is not going to have a huge affect on car performance. Make sure you are using the correct oil for your car. The numbers, 5w30, 10w40, etc. are referring to the viscosity of the oil. If your car is older and the seals may be going bad, then you may want to use a thicker oil so it will not leak out as easily. Also, as the oil is used in your car it gets burned up and ends up getting thicker and darker. This causes it to not circulate as well. Not to mention metal shaving from your engine go into the oil and then get recirculated in your engine, doing untold damage to it. Just make sure you use the proper oil for your car and change it at the recommended intervals and it should be fine.How does the viscosity of oil effect the performance of a car?
Vescosity is important for your car's engine. Too viscose, and the oil will ';gunk up'; and lower your engine's performance. On the other hand, too low viscosity can cause you oil to no lubricate enough and cause undue wear on your engine.
You should check with a professional for advice on the specific oil your car needs for maximum performance.
If you have a high performance engine, or live in a hot climate, the engine will run hotter. If you use an oil in that engine that is too thin, it can cause the engines bearings and other metal parts to wear faster. It will also run very hot all the time. On the other hand, if you use an oil that is too thick it will cause the engine to work harder. That can cause poor performance, lower fuel mileage and other problems down the road.
Heat makes the oil thinner, so it won't stick to metal parts as
well. When this happens, metal parts wear out more quickly.
Not any.
imagine the effort you would have to put in if you were swimming in treacle compared to water,same thing applies,the engine has to work that little bit harder when the oil is cold!weird analogy i know but you can see what i mean
Viscosity is another word for how thick the oil is. In high temperatures, the oil heats up and gets thinner., like water. When it is cold the oil gets thicker, like honey. This is not going to have a huge affect on car performance. Make sure you are using the correct oil for your car. The numbers, 5w30, 10w40, etc. are referring to the viscosity of the oil. If your car is older and the seals may be going bad, then you may want to use a thicker oil so it will not leak out as easily. Also, as the oil is used in your car it gets burned up and ends up getting thicker and darker. This causes it to not circulate as well. Not to mention metal shaving from your engine go into the oil and then get recirculated in your engine, doing untold damage to it. Just make sure you use the proper oil for your car and change it at the recommended intervals and it should be fine.How does the viscosity of oil effect the performance of a car?
Vescosity is important for your car's engine. Too viscose, and the oil will ';gunk up'; and lower your engine's performance. On the other hand, too low viscosity can cause you oil to no lubricate enough and cause undue wear on your engine.
You should check with a professional for advice on the specific oil your car needs for maximum performance.
If you have a high performance engine, or live in a hot climate, the engine will run hotter. If you use an oil in that engine that is too thin, it can cause the engines bearings and other metal parts to wear faster. It will also run very hot all the time. On the other hand, if you use an oil that is too thick it will cause the engine to work harder. That can cause poor performance, lower fuel mileage and other problems down the road.
Heat makes the oil thinner, so it won't stick to metal parts as
well. When this happens, metal parts wear out more quickly.
Not any.
imagine the effort you would have to put in if you were swimming in treacle compared to water,same thing applies,the engine has to work that little bit harder when the oil is cold!weird analogy i know but you can see what i mean
Will a small difference in oil viscosity ruin my car?
I have an '07 Kia Spectra5 and was told that if I don't use the proper oil for my car my warranty might void. I just found out that the place I have been taking my car has been using 5W-30 and my car says it should be 5W-20. Is there much of a difference? Will it mess up my car? I know absolutely nothing about cars so go easy. heheWill a small difference in oil viscosity ruin my car?
No problem in the summer. Make sure you go with 5W-20 in the winter. Higher viscosity is the sort of substitution they are warning against.
Apparently the major changes that brought us engines that last several hundred miles included closer tolerance in oiled bearings. Higher viscosity oils hold idle oil pressure better but actually lubricate less well because the critical matter is oil delivery. I guess that back when an engine was spent at 100K miles that didn't matter.Will a small difference in oil viscosity ruin my car?
It's fine, just use the right oil next time you change it and if you have your car warrantied, don't tell them what oil you use. Tell them you use 5w20. They don't know, I promise. If you tell them, that just gives them another excuse not to honor your warranty and they have MANY. Their goal is to charge for as many repairs as possible because the manufacturer doesn't pay the dealership nearly as much as they'd charge you to fix your problem.
no it will be perfectly fine. all it means is when the car is at the propper temp the oil will be a little thicker, but thats all. I actually use 20W-50 because i like having a slightly higher oil pressure
Don't worry you didn't cause any damage. You might lose just a little bit of gas mileage because of the thicker oil but otherwise your fine. Just switch it back to 5W-20 at your next oil change.
For a long time 5W20 was specified for some cars but it was not available in the US. Most used 5W30 without trouble. However, today there is no excuse. It is readily available.
5W-30W will not hurt the engine.Next oil change if you are concerned make sure you ask for the 5W20W.
no a heavier woeght oil wont hurt it,honestly i would stick with the 5-30 but fopr warranty reasons next time just make sure you tell them 5 20
dont worry/when you change oil next time tell them to use the lighter oil/
No problem in the summer. Make sure you go with 5W-20 in the winter. Higher viscosity is the sort of substitution they are warning against.
Apparently the major changes that brought us engines that last several hundred miles included closer tolerance in oiled bearings. Higher viscosity oils hold idle oil pressure better but actually lubricate less well because the critical matter is oil delivery. I guess that back when an engine was spent at 100K miles that didn't matter.Will a small difference in oil viscosity ruin my car?
It's fine, just use the right oil next time you change it and if you have your car warrantied, don't tell them what oil you use. Tell them you use 5w20. They don't know, I promise. If you tell them, that just gives them another excuse not to honor your warranty and they have MANY. Their goal is to charge for as many repairs as possible because the manufacturer doesn't pay the dealership nearly as much as they'd charge you to fix your problem.
no it will be perfectly fine. all it means is when the car is at the propper temp the oil will be a little thicker, but thats all. I actually use 20W-50 because i like having a slightly higher oil pressure
Don't worry you didn't cause any damage. You might lose just a little bit of gas mileage because of the thicker oil but otherwise your fine. Just switch it back to 5W-20 at your next oil change.
For a long time 5W20 was specified for some cars but it was not available in the US. Most used 5W30 without trouble. However, today there is no excuse. It is readily available.
5W-30W will not hurt the engine.Next oil change if you are concerned make sure you ask for the 5W20W.
no a heavier woeght oil wont hurt it,honestly i would stick with the 5-30 but fopr warranty reasons next time just make sure you tell them 5 20
dont worry/when you change oil next time tell them to use the lighter oil/
What brand and viscosity synthetic oil should I put in my 1969 Pontiac LeMans?
It's a 350 chevy V8.All stock.
Also, should I be putting any special engine oil additives to it? I read somewhere that specific older engines need some special additives to make sure everything runs smooth.
ThanksWhat brand and viscosity synthetic oil should I put in my 1969 Pontiac LeMans?
I would stick to conventional oil, especially since it's stock. Synthetic oil is only relatively recent. Stick to what was available at the time of production since that's what it was made to run with. That's just me. Otherwise, Mobile 1 has always done good. I'm not too familiar with Chevy's so I can't honestly recommend a viscosity.What brand and viscosity synthetic oil should I put in my 1969 Pontiac LeMans?
MOBIL 1 EXTENDED OIL 10 - 30 OR 10 - 40 --------THE SPECIAL ADDITIVES ARE TO REJUVENATE THE SEALS AND KEEP THEM FROM LEAKING ----IF EVERYTHING IS GOOD IN YOUR ENGINE YOU DON'T NEED ANY ------AND GET THE EXTENDED ( 15,000 MILE ) NOT THE REGULAR MOBIL 1 ( 5,000 MILE )
any synthetic oil of 10w-40 will work fine as long as your engine doesn't use oil or leak it.
Also, should I be putting any special engine oil additives to it? I read somewhere that specific older engines need some special additives to make sure everything runs smooth.
ThanksWhat brand and viscosity synthetic oil should I put in my 1969 Pontiac LeMans?
I would stick to conventional oil, especially since it's stock. Synthetic oil is only relatively recent. Stick to what was available at the time of production since that's what it was made to run with. That's just me. Otherwise, Mobile 1 has always done good. I'm not too familiar with Chevy's so I can't honestly recommend a viscosity.What brand and viscosity synthetic oil should I put in my 1969 Pontiac LeMans?
MOBIL 1 EXTENDED OIL 10 - 30 OR 10 - 40 --------THE SPECIAL ADDITIVES ARE TO REJUVENATE THE SEALS AND KEEP THEM FROM LEAKING ----IF EVERYTHING IS GOOD IN YOUR ENGINE YOU DON'T NEED ANY ------AND GET THE EXTENDED ( 15,000 MILE ) NOT THE REGULAR MOBIL 1 ( 5,000 MILE )
any synthetic oil of 10w-40 will work fine as long as your engine doesn't use oil or leak it.
What oil viscosity should I use on a 99 accord w/ 200k miles?
5w30What oil viscosity should I use on a 99 accord w/ 200k miles?
Never anything other than 5w-20, and 5w-30, 5w-30 is the best choice, consider using an oil meant for car with more miles, I use valvoline high mileage and it finally stopped my oil burning. Using a heavy oil will cause high oil pressure, improper lubrication especially during warm up. 10w-30 is the high you should ever go and only if you can't find anything else.What oil viscosity should I use on a 99 accord w/ 200k miles?
at 200,000 miles you do not have to worry about warranty limitations. i will tell you this much, i own a honda with almost 250,000 miles on it and i run 1030 in mine with no problem at all.
High mileage oil. It's the right viscosity.
Never anything other than 5w-20, and 5w-30, 5w-30 is the best choice, consider using an oil meant for car with more miles, I use valvoline high mileage and it finally stopped my oil burning. Using a heavy oil will cause high oil pressure, improper lubrication especially during warm up. 10w-30 is the high you should ever go and only if you can't find anything else.What oil viscosity should I use on a 99 accord w/ 200k miles?
at 200,000 miles you do not have to worry about warranty limitations. i will tell you this much, i own a honda with almost 250,000 miles on it and i run 1030 in mine with no problem at all.
High mileage oil. It's the right viscosity.
I put a different viscosity oil on my car than the one it had can this affect it?
i put a quart of 20w-50 oil on my car and the one in the engine is either 10w-30 or 10w-40. can this make a difference on how the oil rises up to the engine and does it become thicker? what happensI put a different viscosity oil on my car than the one it had can this affect it?
Mixing oil viscosities isn't the greatest thing to do but it can be done if you can't find the correct grade ( it's better to have two different oils in the pan as opposed to being too low on oil ). With the heavier oil added, the oil will thicken up a little bit in the oil pan.
Mixing oil viscosities isn't the greatest thing to do but it can be done if you can't find the correct grade ( it's better to have two different oils in the pan as opposed to being too low on oil ). With the heavier oil added, the oil will thicken up a little bit in the oil pan.
What oil viscosity is correct for 1996 passport 4X4?
I have noticed lately that the oil pressure has been very low. temperature change with season. time for an oil change anyway. i understand how viscosity effects oil flow, maybe i shouldn't use 20 w 50, but definitely not 5w30. No mechanical problems since i bought it a year ago, and i've ridden it hard. lots of engine chatter from day one, thoughWhat oil viscosity is correct for 1996 passport 4X4?
HONDA RECOMMENDS 5W40 FOR THAT YEAR PASSPORTWhat oil viscosity is correct for 1996 passport 4X4?
Try 10W-40
There is a small decal on the drivers side door that will provide you with the info you seek.
try Mobil delvac mx oil in your engine and tell me what you sayblemishes
HONDA RECOMMENDS 5W40 FOR THAT YEAR PASSPORTWhat oil viscosity is correct for 1996 passport 4X4?
Try 10W-40
There is a small decal on the drivers side door that will provide you with the info you seek.
try Mobil delvac mx oil in your engine and tell me what you say
What is the best oil viscosity for a 2004 Hyundai Sonata air conditioning system?
According to my sources, PAG 46 oil for the A/C system is recommended. The factory sticker under the hood should tell you the total amount in the system.What is the best oil viscosity for a 2004 Hyundai Sonata air conditioning system?
10w 30
10w 30
What weight and viscosity oil in ford 351c engine?
72 ford 351c engine in California
i currently use 10-40
is that right?What weight and viscosity oil in ford 351c engine?
10w-40 is fineWhat weight and viscosity oil in ford 351c engine?
Depends just what you do with the car,and the temp your area usually has. Also if you drive it all year in cold temps or store it in the winter, I run Fords and use 20W50 but I run my cars hard every time they are out.Store them in the colder winter months.
10w-30 or your 10w-40 is fine.
for a warm climate 10w 40 sounds good
i currently use 10-40
is that right?What weight and viscosity oil in ford 351c engine?
10w-40 is fineWhat weight and viscosity oil in ford 351c engine?
Depends just what you do with the car,and the temp your area usually has. Also if you drive it all year in cold temps or store it in the winter, I run Fords and use 20W50 but I run my cars hard every time they are out.Store them in the colder winter months.
10w-30 or your 10w-40 is fine.
for a warm climate 10w 40 sounds good
I accidently put the wrong viscosity oil in my car. How will this affect the engine?
Usually Im not so absent minded. I put 10w30 instead of 5w30 in a 3.1 v6. Will this hurt my car engine?I accidently put the wrong viscosity oil in my car. How will this affect the engine?
no, it won't hurt your engine but there is a reason for different weight oils and there uses. 5w30...... the first number represents the oils viscosity in a cold state, the last number represents the oil in a heated state. The lower the number the thinner the oil is, so when your car starts when cold you would have a thinner oil which will pump faster and lubricate the engine faster. .... as the engine heats up the oil gets thicker which on heated parts with friction lubricates better. It will not hurt your engine but at the next oil change I would go back to the recommended oil weight,,,,,,,,, have a great day!I accidently put the wrong viscosity oil in my car. How will this affect the engine?
not at all it food for it
It won't hurt it at all.
no prob might even run stronger.
Unless you are in Alaska and the temperatures are dropping into subzero ranges, no worries. In fact if you ARE in Alaska, still no worries because you probably have the heater plugged in and working which is keeping your engine warm enough anyway.
it wont hurt at all unless you live in really cold climate the 10/30 will take longer to get to the valve train,just change it out ,call it an engine flush
No this will not hurt your car the main number of viscosity is the last number this is the viscosity of the oil at hi temperature the or running temp. the 5w and 10w ratings is the viscosity while cold suggestion: unless you live in an area that gets real cold I would run straight 30 weight oil
no, it won't hurt your engine but there is a reason for different weight oils and there uses. 5w30...... the first number represents the oils viscosity in a cold state, the last number represents the oil in a heated state. The lower the number the thinner the oil is, so when your car starts when cold you would have a thinner oil which will pump faster and lubricate the engine faster. .... as the engine heats up the oil gets thicker which on heated parts with friction lubricates better. It will not hurt your engine but at the next oil change I would go back to the recommended oil weight,,,,,,,,, have a great day!I accidently put the wrong viscosity oil in my car. How will this affect the engine?
not at all it food for it
It won't hurt it at all.
no prob might even run stronger.
Unless you are in Alaska and the temperatures are dropping into subzero ranges, no worries. In fact if you ARE in Alaska, still no worries because you probably have the heater plugged in and working which is keeping your engine warm enough anyway.
it wont hurt at all unless you live in really cold climate the 10/30 will take longer to get to the valve train,just change it out ,call it an engine flush
No this will not hurt your car the main number of viscosity is the last number this is the viscosity of the oil at hi temperature the or running temp. the 5w and 10w ratings is the viscosity while cold suggestion: unless you live in an area that gets real cold I would run straight 30 weight oil
What viscosity oil should i use?
I have recently acquired a 1974 Pontiac Firebird Formula 400. I replaced the cracked heads and am now putting everything back together. What viscosity oil should i use in the motor?What viscosity oil should i use?
10w-30 will work fine in that engine.What viscosity oil should i use?
How cold is it there? If mornings are around 45*F and up, then use 10W-30 or 10W-40. If it is below 45*F, then use either 5W-30 or 5W-40.
If it is on a totally fresh engine rebuild, use the 30 weight. If it is slightly worn on your muscle block above 50K miles, use the 40. Our older muscle can easily use the 40 due to tolerances.
Use the exact oil the manual recomends Viscocity wise, Engines are engineered with specific clearances and need proper lubrication
It depends mainly on the climate in your area
So check with the engine oil specifications for your climate
10w30
10w-30 will work fine in that engine.What viscosity oil should i use?
How cold is it there? If mornings are around 45*F and up, then use 10W-30 or 10W-40. If it is below 45*F, then use either 5W-30 or 5W-40.
If it is on a totally fresh engine rebuild, use the 30 weight. If it is slightly worn on your muscle block above 50K miles, use the 40. Our older muscle can easily use the 40 due to tolerances.
Use the exact oil the manual recomends Viscocity wise, Engines are engineered with specific clearances and need proper lubrication
It depends mainly on the climate in your area
So check with the engine oil specifications for your climate
10w30
Will the oil viscosity in a car break down if the car is only driven 15 miles every 3 months?
My brother has a car that he keeps in mint condition. He only drives the car 15 miles every 3 months. He has not changed the oil in two years and it is still clear. I told him he should change it cause the viscosity has broken down. He claims that since the car is only driven 15 miles every 3 months and he keeps it in his garage and that the oil is still golden that it does not need to be changed? Is he right?Will the oil viscosity in a car break down if the car is only driven 15 miles every 3 months?
If you left gasoline sitting on a shelf for a year and went back to get it, would you pour it into your tank? Would it have the same quality it had when you first put it there? I say no, it would break down over time, just like oil, and other hydrocarbons. The oil still needs to be changed regardless of whether it is driven or not.Will the oil viscosity in a car break down if the car is only driven 15 miles every 3 months?
it will be hard to make him see anything but the oil is like the tires age is not always the factor the rubber in the tires will start to degrade just like the oil and it will not protect the most imporant parts of the engine rings bushing of the crankshaft valve parts etc.plus the emission section will not work proplery either but he should change the oil and filter etc at least 3 months to a year ask him to talk to mobil and see what they say or you can do it and then get it in writing from them nuf said
viscosity no, additives and the water the oil is collecting and helping rust the inside of that motor Yes (that's why they recommend 6 months/year for in date)....
I would change at least once a year but usually my line is 6 months
The oil doesn't loose the viscosity in 3 months, or 6 months, or two years in his driving conditions..... I'd still change it once a year maybe..... but he's not hurting anything.
It won't hurt the engine. If anything...the car setting will damage it as the oil seals will dry out. I'd try to drive it 100 miles a month and change the oil once a year. Good luck.
the first answerer is right, in my own opinion, oil will not lose its ability to lubricate the engine, or its viscosity, or thickness, but in a vehicle that isn't driven, temperature changes from hot to cold, and so forth, will cause condensation to build up inside the crankcase, and you don't want moisture recirculating through the various internal components of the engine. Because where there is metal and water, there will be rust. change it every 3 to six months, and i recommend at least running the engine at least once or twice a month, for at least 15 to 20 minutes at a time.
If you left gasoline sitting on a shelf for a year and went back to get it, would you pour it into your tank? Would it have the same quality it had when you first put it there? I say no, it would break down over time, just like oil, and other hydrocarbons. The oil still needs to be changed regardless of whether it is driven or not.Will the oil viscosity in a car break down if the car is only driven 15 miles every 3 months?
it will be hard to make him see anything but the oil is like the tires age is not always the factor the rubber in the tires will start to degrade just like the oil and it will not protect the most imporant parts of the engine rings bushing of the crankshaft valve parts etc.plus the emission section will not work proplery either but he should change the oil and filter etc at least 3 months to a year ask him to talk to mobil and see what they say or you can do it and then get it in writing from them nuf said
viscosity no, additives and the water the oil is collecting and helping rust the inside of that motor Yes (that's why they recommend 6 months/year for in date)....
I would change at least once a year but usually my line is 6 months
The oil doesn't loose the viscosity in 3 months, or 6 months, or two years in his driving conditions..... I'd still change it once a year maybe..... but he's not hurting anything.
It won't hurt the engine. If anything...the car setting will damage it as the oil seals will dry out. I'd try to drive it 100 miles a month and change the oil once a year. Good luck.
the first answerer is right, in my own opinion, oil will not lose its ability to lubricate the engine, or its viscosity, or thickness, but in a vehicle that isn't driven, temperature changes from hot to cold, and so forth, will cause condensation to build up inside the crankcase, and you don't want moisture recirculating through the various internal components of the engine. Because where there is metal and water, there will be rust. change it every 3 to six months, and i recommend at least running the engine at least once or twice a month, for at least 15 to 20 minutes at a time.
What is the effect of oil viscosity on quality of biodiesel?
Viscosity and quality are not related!blemishes
What is the best oil viscosity for my area climate?
Hi, in my area early mornings in winter time may fall to 3掳 0r 4掳 C, and during summer days it may climb to 27掳 or 28掳 C, while most of the year the daily temperature ranges from 10掳 to 22掳...
I know that most manufacturers today recommend using 5W-30 all year round, but I've been told by in a good garage that 15W-40 would fit best my needs... I own a Ford Focus 1998.
I'll appreciate all the suggestions from your experience.What is the best oil viscosity for my area climate?
Use whatever your owner's manual says to use.
Oil viscosity requirements use to be determined by outdoor temperature.
That is no longer how they are figured. Let's face it, once your engine is warmed up it will run at the same internal temperature in the summer and winter.
Some Honda vehicles now call for a 5W20 oil year round and others call for a 5W30 oil. A lot depends on how the engine is designed and the tolerances of the engine.
Use what Ford recommends for the Focus. If they recommend 5W30 or 10W30 then you can also use 0W30 but not 5W20 or 0W20. If they recommend 5W20 then you may use 0W20.
DON'T listen to a good garage, they are only telling you what they know from the old school way of doing things. The car manufacturers have technicians who are much more qualified than any local garages.
Thicker is Better Myth
The reason that oil viscosities have gotten thinner is because bearing clearances have become smaller. Using thicker oils will interfere with oil flow and the oil pressure will increase. In a worn engine it may be okay to increase the viscosity of the oil because the bearing clearances have become larger. http://www.nordicgroup.us/oil.htm#Why%20鈥?/a>What is the best oil viscosity for my area climate?
Stick with the 5w-30 all season oil. 15w-40 is way to thick for that model/year and for those temp fluctuations. Where I live in the US the temps are from -40 to 100 degrees F. I say to stay with what the manufacture specifications recommend.
I do and no problems.
im a fan of 10 w 40 in summer and 5w 40 winter.....todays oils r very good...the 40 gives MORE protection and the first # is thickness... the 5w flowes better in cold
Ford in the UK recommend 5W30 for the Focus, for all year round, so I would stick with that. 15W40 will be a lot thicker when cold, so will not lubricate the engine as well. Chances are a 15w40 will not meet the recommended specification (WSS M2C913-B or -C) for the engine either.
Oil selection has become a lot more difficult in the last few years, as engines get more precisely manufactured and more complex in their design. Even within a particular grade (eg 5W30, there might be 5 or 6 different types). Look at either of the websites below and you can check what oil you car should take.
The number after the W should always be the same as recommended by the manufacturer. In this case, it is a 30, so leave it at 30. The first number should be as low as possible. For 30 weight oil that is typically 5.
That is how the manufacturer came to the 5W-30 number.
If the manufacturer specified engine bearing clearances to be small, then 5W-20 would be recommended.
The number after the W is the weight of the oil which determines the oil viscosity after the engine has warmed up. This temperature is about the same for any car in any climate unless it overheats.That is why you should keep the number the same. The engine is designed to run with 30 weight oil when warm.
The number before the W is the weight of the oil at 0 deg. F. Cold oil is thicker than warm oil. The number before the W means that the oil is modified to be thinner when cold than straight 30 weight oil. In warm weather, but much worse in cold weather, the 30 weight oil cannot lubricate the engine as well. Modified oil such as 5W-30 is used to provide thinner oil weight at low temperatures and the regular oil weight once the oil warms up.
This dual oil weight is done with polymer modifiers. The modifiers curl up into a ball when cold. As they warm up, they stretch out into a star shape. The expanded shape cause the oil to thicken up. For example, take straight 5 weight oil and add modifiers. When it's cold, it is 5 weight oil. As it warms up, it could be 20 weight or 30 weight depending on how many modifiers are added.
That is how 5W-30 is made.
I know that most manufacturers today recommend using 5W-30 all year round, but I've been told by in a good garage that 15W-40 would fit best my needs... I own a Ford Focus 1998.
I'll appreciate all the suggestions from your experience.What is the best oil viscosity for my area climate?
Use whatever your owner's manual says to use.
Oil viscosity requirements use to be determined by outdoor temperature.
That is no longer how they are figured. Let's face it, once your engine is warmed up it will run at the same internal temperature in the summer and winter.
Some Honda vehicles now call for a 5W20 oil year round and others call for a 5W30 oil. A lot depends on how the engine is designed and the tolerances of the engine.
Use what Ford recommends for the Focus. If they recommend 5W30 or 10W30 then you can also use 0W30 but not 5W20 or 0W20. If they recommend 5W20 then you may use 0W20.
DON'T listen to a good garage, they are only telling you what they know from the old school way of doing things. The car manufacturers have technicians who are much more qualified than any local garages.
Thicker is Better Myth
The reason that oil viscosities have gotten thinner is because bearing clearances have become smaller. Using thicker oils will interfere with oil flow and the oil pressure will increase. In a worn engine it may be okay to increase the viscosity of the oil because the bearing clearances have become larger. http://www.nordicgroup.us/oil.htm#Why%20鈥?/a>What is the best oil viscosity for my area climate?
Stick with the 5w-30 all season oil. 15w-40 is way to thick for that model/year and for those temp fluctuations. Where I live in the US the temps are from -40 to 100 degrees F. I say to stay with what the manufacture specifications recommend.
I do and no problems.
im a fan of 10 w 40 in summer and 5w 40 winter.....todays oils r very good...the 40 gives MORE protection and the first # is thickness... the 5w flowes better in cold
Ford in the UK recommend 5W30 for the Focus, for all year round, so I would stick with that. 15W40 will be a lot thicker when cold, so will not lubricate the engine as well. Chances are a 15w40 will not meet the recommended specification (WSS M2C913-B or -C) for the engine either.
Oil selection has become a lot more difficult in the last few years, as engines get more precisely manufactured and more complex in their design. Even within a particular grade (eg 5W30, there might be 5 or 6 different types). Look at either of the websites below and you can check what oil you car should take.
The number after the W should always be the same as recommended by the manufacturer. In this case, it is a 30, so leave it at 30. The first number should be as low as possible. For 30 weight oil that is typically 5.
That is how the manufacturer came to the 5W-30 number.
If the manufacturer specified engine bearing clearances to be small, then 5W-20 would be recommended.
The number after the W is the weight of the oil which determines the oil viscosity after the engine has warmed up. This temperature is about the same for any car in any climate unless it overheats.That is why you should keep the number the same. The engine is designed to run with 30 weight oil when warm.
The number before the W is the weight of the oil at 0 deg. F. Cold oil is thicker than warm oil. The number before the W means that the oil is modified to be thinner when cold than straight 30 weight oil. In warm weather, but much worse in cold weather, the 30 weight oil cannot lubricate the engine as well. Modified oil such as 5W-30 is used to provide thinner oil weight at low temperatures and the regular oil weight once the oil warms up.
This dual oil weight is done with polymer modifiers. The modifiers curl up into a ball when cold. As they warm up, they stretch out into a star shape. The expanded shape cause the oil to thicken up. For example, take straight 5 weight oil and add modifiers. When it's cold, it is 5 weight oil. As it warms up, it could be 20 weight or 30 weight depending on how many modifiers are added.
That is how 5W-30 is made.
What is the recommended oil viscosity for my car?
I have a honda civic with 75k, and I live in El Paso Texas where temperatures are from 30F to 105F. What type of oil should I get? 10W30 10W40?What is the recommended oil viscosity for my car?
I have a 93 civic and I found that the 10W30 synthetic provides the best proformance/ gas milage combination. Make sure you are changing it every 3000 mi down there in the dust.What is the recommended oil viscosity for my car?
Use the manufacturer's recommended oil. Here's why. The lifters in your engine have lube oil holes that are designed to lube the engine with a specific viscosity and molecular size. Oil that is too thick at a given temp cannot lubricate as it should, thus starving the lifter as it is too thick and large to pass through the oiling holes. Trust the manufacturers recommendations, they know what the engine is designed for and why, unlike many 'SHADE-TREE' mechanics.
Both actually cover the ambient temperature range you listed.The10W30 would get a miniscule amount better gas mileage. Get a synthetic blend and go with the 10W30.
Mike
10W30 will do fine although nowadays the manufacturers recommend 5W30 all year round. 5W30 is thinner, therefore flows better through the engine.
The larger the last number the thicker the oil. harder to start in cold weather, but you don't have to worry about that in Texas. So it comes down to the oil channels in your engine. I would recommend 10W30 if you are going to chose between those two. But in the end you should refer to your owners manual to see what they recommend or call a honda dealer..
dont go with 10w40 too thick for that car.
a 5w30 would be ideal if it's warmer, 10w30 if colder!
but do go with a semi-synthetic blend with it having over 75k miles!
when its hot,ust a heavier oil,like 10w40 and 10w30 is ok for when it get colder.
I have a 93 civic and I found that the 10W30 synthetic provides the best proformance/ gas milage combination. Make sure you are changing it every 3000 mi down there in the dust.What is the recommended oil viscosity for my car?
Use the manufacturer's recommended oil. Here's why. The lifters in your engine have lube oil holes that are designed to lube the engine with a specific viscosity and molecular size. Oil that is too thick at a given temp cannot lubricate as it should, thus starving the lifter as it is too thick and large to pass through the oiling holes. Trust the manufacturers recommendations, they know what the engine is designed for and why, unlike many 'SHADE-TREE' mechanics.
Both actually cover the ambient temperature range you listed.The10W30 would get a miniscule amount better gas mileage. Get a synthetic blend and go with the 10W30.
Mike
10W30 will do fine although nowadays the manufacturers recommend 5W30 all year round. 5W30 is thinner, therefore flows better through the engine.
The larger the last number the thicker the oil. harder to start in cold weather, but you don't have to worry about that in Texas. So it comes down to the oil channels in your engine. I would recommend 10W30 if you are going to chose between those two. But in the end you should refer to your owners manual to see what they recommend or call a honda dealer..
dont go with 10w40 too thick for that car.
a 5w30 would be ideal if it's warmer, 10w30 if colder!
but do go with a semi-synthetic blend with it having over 75k miles!
when its hot,ust a heavier oil,like 10w40 and 10w30 is ok for when it get colder.
What oil viscosity should be used in a high mileage 1998 Honda Prelude?
The owners manual recommends 5W30. However, a mechanic that has worked on it for several years recommends 10W30 and even 10W40 for the summer because of its high engine wear at 112k miles and use at high RPMs. I'm using 10W30, and most people I ask say that 10W40 is just way too thick.What oil viscosity should be used in a high mileage 1998 Honda Prelude?
10/40 isn't too thick , you could go with straight 30 with no problem .
10/40 isn't too thick , you could go with straight 30 with no problem .
Which oil viscosity to use regarding the temperature under the car hood?
Why should i consider the outer temperature 10C.25C or 32C when in machine bay the temperatures are much higher.And then the motor operating temperature get about 100C...Which oil viscosity to use regarding the temperature under the car hood?
my answer is try to check it out first on auto repair shop..Which oil viscosity to use regarding the temperature under the car hood?
Almost all the oil used today is a multi viscosity oil like 10W30 which means when the oil temp is cold it will get no thicker than a 30 and when hot it will get no thinner than a 10 rating. Your engine may run around normal temp of 160 or more but the problem is cold start up when the oil is thick so in colder climate you may need to run a thinner oil your local shop should be able to advise you of an oil that is right for your car and climate.
What kind of car is this?????? I use only Mobil One 0w-30 or 0w-40, depending on what the owner's manual says. THis will improve your performance and return the best MPG's under ALL temperatures!!!!
my answer is try to check it out first on auto repair shop..Which oil viscosity to use regarding the temperature under the car hood?
Almost all the oil used today is a multi viscosity oil like 10W30 which means when the oil temp is cold it will get no thicker than a 30 and when hot it will get no thinner than a 10 rating. Your engine may run around normal temp of 160 or more but the problem is cold start up when the oil is thick so in colder climate you may need to run a thinner oil your local shop should be able to advise you of an oil that is right for your car and climate.
What kind of car is this?????? I use only Mobil One 0w-30 or 0w-40, depending on what the owner's manual says. THis will improve your performance and return the best MPG's under ALL temperatures!!!!
Oil viscosity?
What's the deal with oil viscosity? for example, 10W30 as opposed to 10W40? i know that the W means use it in winter. but whats the difference between the series of numbers?Oil viscosity?
yes the W does stand for Winter. The numbers are the viscocity (thickness) of the oil. The smaller the number the thinner the oil. So a 10w30 would start out as a 10 weight cold and when the engine warms up it would be a 30 weight. The 10w40 would start out at a 10 weight and turn into a 40 weight. Some people use SAE 30 oil which is a 30 weight all the time but that is hard on you car in the cold and for start up. The smaller the number in the front the faster it get to the top of the engine. Which is the most important thing to get lubricated at startup. that is why most newer cars are using 5w30 or 5w20 oil. Some even use 0w20 oil now. It is really about a 2 weight but they round every number to the nearest 5 up or down.Oil viscosity?
Viscosity is the flow-ability of an oil. 10W40 for example is actually 10wight oil to which viscosity modifiers are added so it will maintain the SAME flow-ability over a large temperature range,, for example 10w flows at a given rate at 0C and 40W will flow,,, in theory.. at a higher temp like the 10W flows at 0C if you use the oil over a LONG period of time,, the viscosity modifiers are destroyed and you will be left with 10W oil. The numbers 10W, 30W, etc are arbitrary numbers assigned to oil by ,, if I'm not mistaken either the Society of Automotive Engineers or the Petroleum Institute.
Oil viscosity is the thickness. Not the flowability. I dont even think thats a word. An oil with a thicker viscosity will be more able to keep the metal components in your engine separated. Creating a cushion of sorts beetween them. A thinner viscosity oil will flow more freely and be able to cool the metal parts better.
A multi Viscosity oil. IE 10w30. Flows like a 10wt and creates a cushion like a 30wt. So on and so forth with all multi viscosity oils.
As for the W. It is there to label the two numbers. It is the weight or viscosity of the oil. They put it between them to separate them and it applies to both #'s.
Hope this clears up any confusion.
It's multi-viscosity.Thinner when cold and thickens as it warms up.
the first number is viscosity and the last number is the weight.
Actually, I don' t think the W means winter, but I can tell you what the numbers mean.
The numbers indicate the weight or relative viscosity or flowability of the oil. A 10W40 oil acts like a 10 weight oil until it reaches operating temp, and them it performs like a 40 weight oil.
10W oil is thinner than 40W oil.
A 5W30 flows better in cold weather than a 10W30 oil, but they both flow the same way after the engine heats up. A 20W50 oil is thicker than a 5W30 in both cold weather and after it heats up.
Hope this helps.
10w40 for example flows like 10 weight when cold and like 40 weight when hot. It is called multi viscosity oil. You see the advantage in this is that most oils flow slower when cold and faster when hot ,just the opposite of what is desireable. Viscosity is a measure of the ease of which a fluid flows. If multi weight oil is actually thinner when cold and thicker when hot I do not know.
it's a multi-viscosity oil. 10 represents the oils viscosity when it's cold. This allows it to be thin for better performance at start up. 30 or 40 is the viscosity when it warms up so it doesn't get too thin. both the 10w-30 and 10w-40 oils act as a 10 weight when cold, but the 40 is thicker when warm.
the w means weight. The 10 is the weight of the oil when cold (thinner) and when it gets hot it is 30 (thicker) they are just trying to have a good oil over different driving temps. and conditions.
yes the W does stand for Winter. The numbers are the viscocity (thickness) of the oil. The smaller the number the thinner the oil. So a 10w30 would start out as a 10 weight cold and when the engine warms up it would be a 30 weight. The 10w40 would start out at a 10 weight and turn into a 40 weight. Some people use SAE 30 oil which is a 30 weight all the time but that is hard on you car in the cold and for start up. The smaller the number in the front the faster it get to the top of the engine. Which is the most important thing to get lubricated at startup. that is why most newer cars are using 5w30 or 5w20 oil. Some even use 0w20 oil now. It is really about a 2 weight but they round every number to the nearest 5 up or down.Oil viscosity?
Viscosity is the flow-ability of an oil. 10W40 for example is actually 10wight oil to which viscosity modifiers are added so it will maintain the SAME flow-ability over a large temperature range,, for example 10w flows at a given rate at 0C and 40W will flow,,, in theory.. at a higher temp like the 10W flows at 0C if you use the oil over a LONG period of time,, the viscosity modifiers are destroyed and you will be left with 10W oil. The numbers 10W, 30W, etc are arbitrary numbers assigned to oil by ,, if I'm not mistaken either the Society of Automotive Engineers or the Petroleum Institute.
Oil viscosity is the thickness. Not the flowability. I dont even think thats a word. An oil with a thicker viscosity will be more able to keep the metal components in your engine separated. Creating a cushion of sorts beetween them. A thinner viscosity oil will flow more freely and be able to cool the metal parts better.
A multi Viscosity oil. IE 10w30. Flows like a 10wt and creates a cushion like a 30wt. So on and so forth with all multi viscosity oils.
As for the W. It is there to label the two numbers. It is the weight or viscosity of the oil. They put it between them to separate them and it applies to both #'s.
Hope this clears up any confusion.
It's multi-viscosity.Thinner when cold and thickens as it warms up.
the first number is viscosity and the last number is the weight.
Actually, I don' t think the W means winter, but I can tell you what the numbers mean.
The numbers indicate the weight or relative viscosity or flowability of the oil. A 10W40 oil acts like a 10 weight oil until it reaches operating temp, and them it performs like a 40 weight oil.
10W oil is thinner than 40W oil.
A 5W30 flows better in cold weather than a 10W30 oil, but they both flow the same way after the engine heats up. A 20W50 oil is thicker than a 5W30 in both cold weather and after it heats up.
Hope this helps.
10w40 for example flows like 10 weight when cold and like 40 weight when hot. It is called multi viscosity oil. You see the advantage in this is that most oils flow slower when cold and faster when hot ,just the opposite of what is desireable. Viscosity is a measure of the ease of which a fluid flows. If multi weight oil is actually thinner when cold and thicker when hot I do not know.
it's a multi-viscosity oil. 10 represents the oils viscosity when it's cold. This allows it to be thin for better performance at start up. 30 or 40 is the viscosity when it warms up so it doesn't get too thin. both the 10w-30 and 10w-40 oils act as a 10 weight when cold, but the 40 is thicker when warm.
the w means weight. The 10 is the weight of the oil when cold (thinner) and when it gets hot it is 30 (thicker) they are just trying to have a good oil over different driving temps. and conditions.
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