Lawn mowers have air cooled engines and as such they operate at higher temperatures than car engines, which are generally liquid cooled. Therefore, the oil requirement is also different and calls for single weight oil such as 30W. The car engines specify multi weight and viscosity oil, such as 10W40, which have many additives and viscosity enhancers, which tend to deteriorate at higher temperatures as in a air cooled engine, degrading the oil for high temperature application.
Engine What kind of oil ?
- Thread starter jmurray01
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Lawn mowers have air cooled engines and as such they operate at higher temperatures than car engines, which are generally liquid cooled. Therefore, the oil requirement is also different and calls for single weight oil such as 30W. The car engines specify multi weight and viscosity oil, such as 10W40, which have many additives and viscosity enhancers, which tend to deteriorate at higher temperatures as in a air cooled engine, degrading the oil for high temperature application.
sallymander
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10w30 is the lighter oil and would be better for colder climates.
Big problem you can run into with 10w40 oil is most of it is made for diesel engines and has different properties than gasser engine oil.
You would have to look at the label well before buying to make sure it's for a gass engine.
Big problem you can run into with 10w40 oil is most of it is made for diesel engines and has different properties than gasser engine oil.
You would have to look at the label well before buying to make sure it's for a gass engine.
Amsoilman1
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Hey all Amsoilman here. I have weighed in on many of WHAT OIL questions. Please Take whatever lubrication you use and get their comparisons to Amsoil Products. In most cases the company you use WILL NOT have anything. We at Amsoil test against any and all lubricants that is worth while testing with. Please do so. If you want you can check yourself with "Amsoil" at AMSOIL - Synthetic Oil, Motor and Engine Oil, Lubricants, Air Filters, Oil Filters and Greases ... If you have any more questions I can help answer pertaining to lubrication please donot hesitate to ask. Thank you for reading my response.
Oh yes MOST air cooled engines can use Amsoil ASE small engine oil. The member stated that their isnt any difference in auto and small air cooled engines is sadly mistaken. Please read and better informed. Thanks again.: Amsoilman
Oh yes MOST air cooled engines can use Amsoil ASE small engine oil. The member stated that their isnt any difference in auto and small air cooled engines is sadly mistaken. Please read and better informed. Thanks again.: Amsoilman
Amsoilman1
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Another misinformed individual . Please read annd donot put any processed dirt in your valuable ehgines.
Thanks again: Amsoilman
Thanks again: Amsoilman
fenderbender
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Oil does not get thin when it is cold and thicker when it is hot!! It just doesn't get thinner than standard 10 weight when it's hot, nor thicker than standard 30 weight when cold. Pour a bottle of 30 weight and a bottle of 10-30 when they are cold and you will see what I mean.
Black Bart
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fenderbender; You have it Backasswards,
Multi viscosity oil has been around for Many decades, for longer than some here have been alive ... and still there are those that do not know what it is or how it works.
Same for synthetics and additives why they are there and what they do... and now added to the misinformation regarding those add that there is someone now implying that diesel rated oil is somehow inferior to gasoline oil...?
I don't know if some just don't care enough to find out facts about better oils or if it is they have some partial remembered misinformation ... but it is amazing how much opposite information gets posted everywhere... I sure hope that those, that are unsure do a bit more reading than just skimming the nonsense that gets perpetuated... Use the resources that are available, this information is available World Wide... There are no lubrication 'secrets' anymore... it's 2012 not 1952... but still there is too many completely wrong statements made about oils..
You will never find a better oil for an air cooled engine than a Diesel rated, multi-viscosity synthetic... You can subtract any of those 3 things... each time you do you will have a Lesser lubricant...
:smile:KennyV
Same for synthetics and additives why they are there and what they do... and now added to the misinformation regarding those add that there is someone now implying that diesel rated oil is somehow inferior to gasoline oil...?
I don't know if some just don't care enough to find out facts about better oils or if it is they have some partial remembered misinformation ... but it is amazing how much opposite information gets posted everywhere... I sure hope that those, that are unsure do a bit more reading than just skimming the nonsense that gets perpetuated... Use the resources that are available, this information is available World Wide... There are no lubrication 'secrets' anymore... it's 2012 not 1952... but still there is too many completely wrong statements made about oils..
You will never find a better oil for an air cooled engine than a Diesel rated, multi-viscosity synthetic... You can subtract any of those 3 things... each time you do you will have a Lesser lubricant...
:smile:KennyV