Supposed to check oil on a warm engine, or after it cools down?

[LordJezo]

?

 

[DannyBoy]

cool, but it doesn't really matter that much.

p.s. Hit the post button too quick

 

[MercenaryForHire]

"Cool" engine, so that the oil has time to flow back down to the pan and you're actually measuring the level.

- M4H

 

[MikeMike]

empty the oil on a warm engine, check the oil on a cool engine.

MIKE

 

[DannyBoy]

Originally posted by: MercenaryForHire
"Cool" engine, so that the oil has time to flow back down to the pan and you're actually measuring the level.

- M4H

It's such a small difference that it really doesn't matter.

I remember reading an article on how certain manufacturer's changed their dipsticks to "compensate" for the reading as most people checked their cars engine oil when they stop at a service station while the engine was warm, but then some amazingly super dooper guy that knows everything said some mathematical number / percentage of oil and blah blah blah and finally just said it makes no difference.