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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Is a different map needed to use e85?



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      05-14-2012, 06:06 PM   #1
woptang22
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Is a different map needed to use e85?

Im running COBB stage 2+FMIC aggressive with 93 octane. Ive been seeing people using a mixture of e85 and 93 octane. I was thinking about giving it a try since I found a semi local place in philly that sells e85. But will it benefit me or be worse for my car? Do I need a race gas map or something like that to use e85? Just looking for some info on this. THanks everyone.
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      05-14-2012, 06:11 PM   #2
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the couple of times I've done it on Cobb just to test, I get fuel mixture codes and car runs a bit lean. You won't get anything from it unless they come out with a e85 map, or ATR and then you can get someone to tune for it.
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      05-14-2012, 06:15 PM   #3
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Quote:
Originally Posted by yandyr View Post
the couple of times I've done it on Cobb just to test, I get fuel mixture codes and car runs a bit lean. You won't get anything from it unless they come out with a e85 map, or ATR and then you can get someone to tune for it.
Thanks for the info. I was thinking it probably wouldnt run so great. But thought it was worth asking. I was thinking of getting a custom tune but not sure if I want to mod anymore yet. And as far as the e85 I dont think I want to drive into center city every time I need to fill with e85. So not sure what to do yet.
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