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Flex Fuel Finder
"Protec Fuel has highly benefited from working Growth Energy on multiple fronts. Whether it is from marketing efforts for retail stations or industry outreach, to regulatory questions on both E85 and E15 fuels, to an interactively sharing of ideas on customer outreach successes from across the country. We are helping expand the higher ethanol marketplace by having higher ethanol blending dispensers on the islands to enhance the retail station’s business, exposure and help make the station overall healthier. As a result, Protec Fuel has been getting positive feedback from customers and fleets using E15 fuel due to its octane similarities to regular or mid grade fuels, lower price point then regular gasoline, and no mileage decrease."
- Steve Walk, VP, Protec Fuel Management, Boca Raton, FL

Flex Fuel Vehicles


Half of all U.S. vehicles made today are flex fuel ready

FFVs are specially designed to run on regular unleaded or any ethanol fuel blend up to 85 percent. Special on-board diagnostics “read” the fuel blend, enabling drivers to fuel with E10, E15, E20, E30, E40, E50 or any ethanol blend up to E85, or regular unleaded if E85 is not available. Therefore, any part of the engine which comes in contact with the fuel has been upgraded to tolerate alcohol. Normally, these parts include an upgraded fuel system with alcohol compatible parts. Today, Chrysler Corporation, Ford Motor Company, General Motors, Nissan and Toyota all offer flexible fuel engines as standard equipment in certain vehicles — at no additional cost to consumers. Each FFV comes with the same factory warranties as gasoline vehicles.

What are the differences between a FFV and a regular gasoline-only model?

The significant difference is the fuel sensor which detects the ethanol-to-gasoline ratio. A number of other parts on the FFV’s fuel delivery system are modified to be E85 compatible. The fuel tank, the fuel lines, fuel injectors, computer system and anti-siphon device have been slightly modified. Alcohol fuels can be more corrosive to certain metals than gasoline; therefore, fuel system parts have been upgraded for high level ethanol use.

Download a PDF of current FFVs.