Originally Posted by The HACK
I have an MZ4 Coupe with S54 and I've pushed it at 115º F days in the middle of summer at a grueling track like Buttonwillow (lots of slow speed turns). Oil Temp never went above 260º F.
And again sir, I have personally witnessed a bone stock E46 M3 pit out with the oil guage at 287 degrees. It didn't go limp, but it got the oil to that temp, and the owner pulled out to save his vehicle. Just because the other the S54 bimmers don't have a limp mode, doesn't mean they don't get dangerously hot.