Thread: M2 Fuel Octane
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      07-26-2016, 08:26 PM   #29
dalrx
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Drives: 530i
Join Date: Feb 2008
Location: regina

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not better milage as has higher ethanol content...but certainly more pep as ecu is tuned to 93 or higher . if I do 91 like she'll vpower it gets a little sluggish.
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