Thread: E85 on S63tu
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protecon protecon is offline
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Posts: 53
Join Date: Sep 2016
Car: 2010 X5M MCB
Default 04-15-2017, 04:27 PM

Quote:
Originally Posted by Steve @ BMS/Fuel-It!
If you want to run E85, I'd recommend doing a backend flash as well. Our M5 runs straight E85 (E54 here) with the JB4 and a BM3 flash. Without the flash you will be really limited on the ethanol content you can run. The other option is to run meth as well.
Would the M5 BEF be suitable for the X5M?

There's some discussion regarding fueling in this thread > http://n54tech.com/forums/showthread.php?p=532666

I run an E30 mix with 98RON (93AKI) and 107RON E85 - roughly 20L per 85L tank with no issues.
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