What is Fuel flex? and Does it help you save gas? and get more mileage?

stands for fuel flexibility.

means you can use regular unleaded gasoline, or mix of unleaded and ethanol (from corn). (E85 at the pumps)
it does not help you save gas. you will burn roughly the same amount per mile, if not a little bit more.

I don’t know how much E85 costs but if it is lower than regular unleaded, you could save a little bit of money on that front. Perhaps you may get some sort of govt credit when you purchase a car like that, depending on your geographic location.

as stated, you can burn unleaded or e85, you get less gas mileage with e85, about 5mpg less then using unleaded. e85 needs to be 75 cents per gallon less to benefit using e85.

palmerz6,

Vehicles with flex fuel capabilities are marked in the vehicle description and fuel economy information boxes on the new vehicle window sticker. Flexible Fuel Vehicles (FFV) will also have an E85 ethanol label on the fuel filler door. If not labeled for FFV operation, only unleaded fuel blended with a maximum of 10% ethanol (often referred to as a summer blend) may be used.

As far as Ford vehicles go, the 3.0L Duratec V6 is flex-fuel-capable. It can be run on unleaded gasoline, E85 (up to 85% ethanol and 15% gasoline), or any mix of the two. The fuel injection and spark timing are adjusted automatically according to the actual blend detected by electronic sensors. This flex-fuel engine allows you to fill up wherever you are, even if E85 isn’t readily available.

Please email me for further information.

Seni
Ford Customer Service Division

It’s flex fuel, not ‘fuel flex’ and it means that the engine is capable of running on gasoline or ethanol. Regular engines are only capable of running on gasoline fuel containing up to 10% ethanol mixed in.

Running the engine on ethanol (often just called E85 ) actually uses more fuel because the energy density of the fuel is not as high as compared to gasoline.