Quote:
Originally Posted by 6IX-F10-N52
also, the thing you mentioned about the m3 guys - wouldnt a thicker oil weight lower temperatures? I noticed a reduction in oil temps when switching from 30 to 40 weight.
|
Specifically for track conditions in which your vehicle (M3) would practically live at 7,000rpm and above far longer than any amount of spirited street driving could replicate, the oil would essentially "heat soak" over said extended period, thus making it dissipate heat far slower than what would be generally be ideal. You want oil temperatures to be consistent; when such a thick oil reaches its "apex" and stays there for such a long period (during track), it gets extremely difficult to maintain consistency for the ideal temperature.
For everyday use, yes you're right, you will notice generally lower oil temperatures (-60), that's why it's the recommended oil
