I have decided I'm going to take a whack at running higher blends of ethanol and see what happens. Every 30-40 miles I have filled up with a gallon or so of ethanol and I'm keeping track of the ethanol content. Currently im at ~60% with no MIL on my 2001 F4i.

The only thing I have noticed is that at start up, the engine idles a little lower than normal, and while idling at stop lights it will sometimes idle lower than normal. So I bumped up the idle position and now it idles from normal to a bit above normal occasionaly.

I will keep you all posted on my problems, if any of you have any ideas or can help troubleshoot, please let me know =). I am currently thinking of ideas to cheaply trick the ECU to increase the fuel flow by about 30%.