What happens when E85 is not available?

Response:

The FFV system allows the driver to use any combination of gasoline or ethanol - from 100 percent unleaded gasoline to 85 percent ethanol. A driver can therefore use unleaded gasoline if ethanol is not available.

Will I hurt a gasoline-only vehicle if I use E85?

Longer-term use of E85 in gasoline-only vehicles may cause damage because of the incompatibility of the alcohol fuel with the parts in gasoline-only engines. Performance and emissions will also be compromised.