Oil Temperatures ?

ChrisSlicks · 08-24-2013, 10:58 AM

Quote:

Originally Posted by IDZRVIT

300F. Read the test requirements for new SM/SN API certified oils. Why do you think the Z engineers decided on the limp mode temp of ~280F and not 260, 240, 264, 228, etc? The 260F temp limit is passe and old oil technology. Newer materials technology can withstand higher temps for modern cars thus the requirement for SM/SN oils.

This is correct. Stage one limp mode isn't until 280F, stage two limp mode is 300F but probably pretty difficult to reach when already restricted.

Synthetic oils can handle the high temperatures much better, but even they suffer some break down if above 260F for an extended period. It is a good idea to shorten your oil change interval if your engine spends time at high temperatures frequently.

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