Quote:
Originally Posted by HawkeyeGeoff
Quote:
Originally Posted by david in germany
I get better MPG out of my 328i and 118i with lower octane. (95 eur= 91 US)
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Unless it's based on Ethanol content....this makes no sense. |
91 US is what it's designed for. When we moved from CA to TX, the jump from 91 to 93 actually lowered both of our cars (an M Coupe and a 135i) average mpg slightly. Of course the N54 1er was busy destroying HPFP's so I never really paid it much thought.