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      11-18-2012, 11:45 PM   #47
NoM3Yet
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Drives: E92 M3
Join Date: Nov 2012
Location: Woodinville, WA

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I have run into this several times in the past on different cars (ethanol affecting MPG). You don't notice it as much in most "normal" cars, but the more high performance the more you notice it. Just my experience.