I have data somewhere . I will post it here sometime ( may take a while to find time to look ) .
M60 V8 engines had NIKASIL cylinder walls which were destroyed by high sulphur content in fuel . EDIT - some engines still have Nikasil , some have Alusil depending on which country the vehicle was originally sent to .
maybe some early M62 `s were affected , maybe not .
some engines have ALUSIL blocks , no coating on the cylinders as the alloy is hard enough .
the data has all the info , when I can locate it .

EDIT - found it in minutes . had to make a PDF because file would not load otherwise .
had to delete page 24 because PDF was too large . no big deal , it was only starter motor info .

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BMW alloy engines.pdf (780.8 KB, 3011 views)