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Flex Fuel Finder
"I project in the future there are two retailers. Those that currently sell E15 and those that will be selling E15. The customers that use E15 can't believe why you wouldn't want to use E15. By offering E15 it sets us apart from every other retailer in the market with the lower price point on the sign. As a third generation owner/operator of Hennen's Auto Service we have been serving our customer automotive needs since 1958. I have been selling E15 to our customers since the fall of 2013. Since I introduced the higher level blend of ethanol there has not been one complaint do to mileage loss or engine performance. Only positive comments with drivability and the lower cost at the pump. Today's cars are designed to utilize the higher octane to improve performance threw different computer management systems. I see higher level blends of ethanol like E15 being the next fuel of future.
- Joel Hennen, President, Owner, Hennen’s Auto Service, Shakopee, MN

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.