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      07-15-2012, 01:47 AM   #5773
benzy89
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Drives: '08 E90 335i
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Location: Northern NJ

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2008 BMW 335i  [3.75]
Quote:
Originally Posted by Monster335 View Post
There is a Valero gas station that sells e85, so you're saying its safe to pump e85 mixed with 91 octane using cobb tune?
A 20% blend is safe for our tune (since COBB doesn't calibrate for E85 usage like the plug-in tunes). A 20% blend is 3 gallons of E85 to one full tank. What I'd recommend is adding the E85 1st at whatever gas station you're going to fill up the rest of the tank at. Wouldn't be too good riding around on a high concentration of E85 until you can fill the tank.

I personally have a 5 gallon gas tank & try to keep 3 gallons of E85 on stand by, that way I can add it right at a gas station before I fill up on 93.
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