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      09-27-2018, 02:34 PM   #180
ICantDrive4Sht
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Drives: F87 M2 Competition
Join Date: Jul 2017
Location: Finland

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Quote:
Originally Posted by BuzzE46 View Post
On stock fuel pump u can mix race gas or e85?
Yes, to a point.
30% Ethanol is usually "the limit", but you'd have to find it out yourself by trial and effort. My last car 640i was fine with allmost half a tank of E85 and rest 98 (93). My current M2 doesn't handle ethanol nearly as well, if at all. Which is weird.