Originally Posted by Lankster
Ive done it, filled up 30% E85. No difference. Pointless to say the least.
Just got a JB4 the other week and now its the only thing ill fill up with (mixed)
Huge difference with a tune
Do you run E85 specific maps? That's what my question boils down to. I have procede but don't really want to switch to the e85 maps.