Definitely going to send the M1 FS to test and will post results back here. HPL BAS is looking like the best of the best, any ideas of what typical OCI's are for this oil?
HTHS with PPE or Motul (~3.8) is a little higher than M1 FS (3.5?) and doesn't thin out like M1 does (I don't think). I'll look more into HPL BAS, seems like it'd be best to get in the 5gallon jug. Free oil changes through FCP with Xcess Gen2 does sound attractive.
Thank you! Starting to lean...
Looking for the best bang for your buck 5w40 oil for my tuned ~900HP BMW M8 (4.4L V8TT S63TU4) on 93 and E40 gas. Car is my daily driver in the warmer months, with mostly city driving, short commutes, and pulls to redline. May see the drag strip 1-2 times a year. I'll be changing the oil every...