What happens if I accidentally fuel my gasoline-only powered vehicle with E85?

Response:

Although your vehicle was not manufactured to run on E85, no problems should occur if you mistakenly fuel once with the alternative fuel.  The largest difference between an E85 powered vehicle and a gasoline powered vehicle is that their computer modules are meant to read different amounts of oxygen within the fuel.  E85 contains a higher amount of oxygen than gasoline and E85 compatible vehicles are made to read that higher amount.  When a higher amount of oxygen is read by a gasoline powered vehicle, your "check engine light" may appear.  A number of other parts on the FFV's fuel delivery system are modified to be ethanol-compatible.  The fuel tank, fuel lines, fuel injectors, computer system and anti-siphon device have been modified slightly.  Alcohol fuels can be more corrosive than gasoline.  Therefore; fuel system parts have been upgraded to be ethanol-compatible.

Ultimately it is a drivers choice, but we do need to be firm in recommending that only FFVs use E85 and to state that we are not responsible for damages.