thanks Schwa! Impressive gains in power- expected, but still cool to see.

The summary supports all that I've read about E85 in regular vehicles, and extends it to at least the Prius. It's good to know that the controls can handle the E85 and continue to fully combust it, and the CE light is more of a "out of parameter" indication in this case (other risks related to nonstandard fuels notwithstanding).

Hondas have different engine technology, though- with lean-burn and/or VTEC, I still don't know enough about the details to be able to predict the effects.

FWIW, I'm building my confidence to try it in the HAH. I've been running "E1/3" (initially 7.8gal E85 in a 20gal tank, adjusted on refillls) in the (non-FFV) Explorer for a week now, with no comments from my wife. I haven't refilled yet, but it looks to be about a 10% reduction in FE, as expected (about 3% per 10% ethanol concentration).

The E85 pump near me is at $2.25 now, with the lowest regular I've seen at $2.40, so I'm not breaking even fiscally, but that's not what this is about.

As it gets colder, I think I'll keep it at this concentration- I really don't want to hear it from my wife about her car not starting on the 1st turn or running rough for the 1st few miles.

I just filled the HAH. When I burn off 6-7gal I'll put in E85 for "E1/3" there and see what happens.