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      02-26-2025, 07:07 PM   #13708
ezaircon4jc
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Drives: 2019 540i M Sport
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Quote:
Originally Posted by Mosaud1998 View Post
I think they use 0w-20. I think that's too thin for the B58. I use 5w-30
I figure the engineers know what they're doing. Besides, if there's a failure, since only the dealer has done the oil, they're responsible. I know, good luck proving it...
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