Quote:
Originally Posted by ZDan
For me, 25 hours track usage is nearly 2 years. I've been changing after every 4-6 track hours, honestly I think I'll consider extending that to fresh oil beginning of season, with one oil-change mid-season which would be 6-8 hours of track usage between changes.
Yup. If you feel you're pushing the limits of the oil, get it analyzed. At my change intervals, I don't think I am.
I disagree with this. In most regions they explicitly recommend higher viscosity oil even just for hotter ambient temps, nevermind track usage where oil temps will be significantly higher than during normal operation on the street.
If tracking the car, 30-weight synth is a good idea for better high-temp/high-shear (HTHS). With or without an oil cooler.
But still non-zero. Leaks are common, and I've read of at least one failure due to oil cooler install issues. IMO for most of us who track these cars, it is an added risk with little to no real benefit.
If you worry about that, have oil tested at well under the change interval of 25 track hours you quoted. See when the oil viscosity begins to become degraded. Again, for my usage there's really no way my change interval will be greater than about 8 track hours based on my usage, so *way* below 25 track hours. For me, I'm not worried at all about running 275F indicated oil temps at the track, at my change interval with 5w30 synthetic.
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Leaks aren't common, you just made that up.lol I understand you want to be right about this topic badly, but fabricating erroneous statements is a bit much.. They are so common that you read of
one, ONE failure, disputing your previous statement. C'mon man..