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I agree there are not a lot of wrong oils among the generally right oils. I also agree state of the art oils are all really good. I have not seen any reports of M5 blowing up from non LL01FE 5W30 oils. I also have not seen any 100,000 mile or 10 year engine wear tests of the F90 M5, and am not convinced BMW cares what happens several years out of warranty as much as it cares about avoiding CAFE penalties and saving money on free servicing. Time will tell. But in the meantime, it is actually hard to make a bad oil choice unless you are completely ignorant.
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