E85 will eat your seals and rubber fuel lines. Also you will have ~20% reduction in fuel economy for a ~15% reduction in pricer per gallon. The processsing efficiency of creating ethanol is terrible. It takes more dino fuel to process ethanol than it creates. Gov. subsidies (read your tax dollars) cover the over cost. Back home (South Dakota, ethanol land) everyone avoids E85 like the plague. It was a novelty and much cheaper for a small time but it has worn off fast and gotten expensive.
Now Bio-Diesel....
Now Bio-Diesel....