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OK to put 89 octane in 330?

2559 Views 34 Replies 27 Participants Last post by  Double Vanos
Hey all, the manual says only put premium.. but cmon is it gonna make that big of a deal to put 89 in a 330?? I know in an M3 you would have to... what do you put in yours? Any problems with 89??
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ok, was just a simple question.. i havent filled it up since i got the car only 3 days old.. jus checking... i dont know what was in it from the dealership for all i know was 87.. but just askin i will put premium in it =)
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