You are correct. 87 will not void the warranty.
Originally Posted by dcharnet
This kind of fuzzy thinking serves no one. I have read the manual. It expressly permits 87.There is no ambiguity, and no issue. I have sued BMW before and am neither naive nor "unfamiliar" with how this works.
Going back to the OP's question, damage caused by "bad" gas will NOT be covered by the warranty. Hence the recommendation - here and in the manual - to use top tier brands.
I always get a receipt so I can build a paper trail of precisely where and when I purchased fuel, "just in case."
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