Quote:
Originally Posted by M6Roar
Any issues after running 4Gals of E85 for a while now?
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No problems for me. I ran 20% ethanol in my M5 for 2 years without an issue. I am now doing the same in my M6. There is significant performance difference for both cars not running E20. Both cars have Mission stage 1 tune. I have never gone beyond 20%.