Thread: Put 110 octane race fuel in my M, started misfiring BADLY!!
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      07-01-2020, 08:20 PM   #13
Thecastle
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Drives: F10 550i
Join Date: Apr 2015
Location: Houston, TX

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2020 BMW M340i  [0.00]
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Sure, a tune.

Lots of people tune for e85 here because it has much higher octane and is low cost in the us.

What I read suggest the x5m standard mapping adapts well even to 100 octane.
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