Not sure if these points have already come up in this thread:

Yes, E85 is cheaper, even after factoring in lower mileage.

But it's not scalable (increased demand for corn is already causing cheap-tortilla shortages in Mexico, for chrissake, and that's with virtually no demand for the stuff here yet).

And it WILL void your warranty if you run it in a vehicle whose owners manual only allows up to E15. I was pretty puzzled by the part of the Wikipedia entry cited earlier in this thread that showed long-term running of E85 did no damage. That's inconsistent with every other study and shred of data I've seen on this stuff. (Maybe all the emissions gear on the test vehicle was disconnected?) The temperatures and emissions would be all wrong.

Maybe my imagination is too limited, but I just can't imagine it being a good idea.

--doug

2007 HCH: lovin' every minute of it