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Originally Posted by ZDan
Of course the pressure drop is due to the oil cooler. Yes, 250F oil should be "better" than 272F oil, but again no one is able to quantify how *much* better.
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250 F oil "should" be better than 272 F, but it has to be expressed in terms of shortened engine operating hours to 2 decimal places and have an OEM manufacturers name on the letterhead before you'll even consider it as anything beyond conjecture.
Quote:
Originally Posted by ZDan
The appropriateness of running factory street pads at the track is a completely different, totally unrelated subject!
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Right. The owner's manual, I'm sorry service manual since you think that actually matters, applies to extended operation on a road course, even though the car can't reasonably get to that point with a stock setup. I'm not sure how you think that makes sense, or how you can imply there is no difference in operating at temp X on public road vs. operating at temp X on a road course. Not to mention it's a different car with a different oiling system.
Quote:
Originally Posted by ZDan
I disagree with his conclusion. No engine or oil expert would tell you that good synthetic oil "degrades" any significant amount from operating at 272°F.
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You don't think he was just talking about the negative effect on oil pressure? Or do you really think he meant the oil itself is breaking down?
Quote:
Originally Posted by ZDan
For my usage, I still do not see any meaningful benefit to doing so.
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Cool, don't use one. It's your car you don't have to. Run a blower with E85 and crank it up to 400 rwhp. Some engines can take it. No one can say for sure at what torque rating the rods let go, so it doesn't matter what you do as long as your engine stays running. Amirite?