FYI.....Mobil 1 came out with a new Mobil 1 Supercar oil....5w50 that has more ZDDP that is up to 1200ppm and should be perfect for the BMW engine....have already installed it in CTS-V, M6, Porsche GT-2, & new Corvette which is what it was designed for....
https://www.mobil.com/en/lubricants/...supercar-5w-50