Quote:
Originally Posted by eurominican
Why would a flexfuel kit be better (necessary?) than running just the oft with e85 tune?
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Ignoring the custom tune issue, it's mostly for convenience. If you don't have a ready supply of E85, or if you do a lot of road trips, it's a pain in the ass to drain the tank and switch fuels. With a full flex fuel setup, you just put in whatever fuel you have around.