Highlighting the growing availability and interest in the use of E-85 fuel as an alternative to conventional gasoline, AAA has recently begun publishing the nationwide average price of the mostly-ethanol blend of fuel its AAA Fuel Gauge Report Web site. Pricing information for E-85 is also available on AAA’s TripTik Travel Planner, an interactive mapping, routing and travel planning tool that is available free at AAA.com. According to AAA, currently the nationwide average price of self-serve regular gasoline is about $2.811 per gallon compared to $2.334 for a gallon of E-85. E-85 is a motor fuel made from a blend of approximately 85 percent ethanol and 15 percent gasoline. Conventional gasoline frequently contains as much as 10 percent ethanol, but much higher concentrations require special modifications to vehicle fuel systems and engines.