Thread: 10W-40
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Old 01-24-2013, 03:08 AM   #26
serialk11r
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Quote:
Originally Posted by smbrm View Post
Not trying to be provocative, but I am curious as to what spec. you are referring to when you say "...still might not be within spec......"?
So 20 weight oil at operating temperature (a bit over 100C?) is about 7cSt, right? I wonder how hot 50 weight oil can get before it drops below that. Aka, how much hotter can you run 50 weight oil before it's as thin as 20 weight oil at a given temperature, in the range of usual oil temperatures seen in a car engine.
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