Quote:
Originally Posted by wstar
I think if you're peaking at 260+ on any kind of regular basis, or sustaining anything over 250 for long periods, you would probably be better off with an oil cooler in terms of long-term engine wear issues, but that's just my educated guess.
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But, is 260F where oil starts to break down, or is it higher. If oil has issues at 350F - then the "weak link" would obviously be the bearings.
200F might very well be too cold - the oil might still be less than 30w oil, as far as it's viscosity is concerned.