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      05-21-2012, 06:39 AM   #154
holmes011
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Drives: 2008 335xi coupe
Join Date: May 2011
Location: CT

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Quote:
Originally Posted by psmitty95 View Post
It's a special gas you can only get at some places that's basically pure ethanol. The guy at the station told me someone had it tested and it's between 110-115 oct. If you have a JB4 they just updated map 5 so it could run E85 and it made a huge difference. The car pulls so much harder especially in the higher gears.
pretty sure you dont want to run e85 on an n54
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