- Feb 21, 2023
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- #21
I like on star, but it's optimistic on oil life. I think these computer driven calculations are not very useful. They would mean 6-7 k miles, which is a lot for a higher performance motor. Especially in high heat or severe use environments. If you watch Project Farm oil tests, he heats oil up and they all lose steam and turn pretty dark. They will lose effectiveness over time. My 5000ike laboratory tests still looked OK, but it's starting to lose ground between 3500 and 5000 miles.