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Old 03-27-2014, 01:01 PM   #2374 (permalink)
cycy89
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Join Date: Jun 2011
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Quote:
Originally Posted by DEpointfive0 View Post
Ohhhhhhh, ok.

What if you ran a tune for 91-93 octane? What would happen if the gas is even 50% E85, you should be ok, no? BUT when you go back to E85 you'd have to run it dry

And E85 isn't consistent to begin with, so do you tune rich every time because there is no flex fuel kit yet?
I think it's a very bad idea to run a certain fuel with another fuel's tune, even mixed. Normally they drain the fuel system before they put in a different fuel for a different tune. You don't want your car to "run" dry. I've done that on the track due to the stupid "dots" fuel gauge.

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