Quote:
Originally Posted by Turkeybaster115
As long as its a good LL01 oil like Mobil 1, it should still be ok. Onionredwing did some lab analysis on oil he changed after 5k miles and numerous track events with 280F temps, and it was still serviceable.
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My last oil change after hitting 300F last year produced oil that (visually) looked broken down in watery streams. Very different than any of my other oil changes. This was with LL1 oil and AFAIK the head gasket was/is ok, no water/oil mix. Not a scientific analysis by any means, just a visual observation.