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      04-22-2011, 09:16 AM   #10
gthal's Avatar
Drives: C63 coupe
Join Date: Jul 2007
Location: Canada

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2011 M3  [3.37]
OK... dumb question... can you add an octane booster to regular 91 octane fuel and get the same result? I can't get anything other than 91 here.
gthal is offline   Canada
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