Use the map to locate the nearest E-85 petrol station to where you are, it is based on your current geo location. Production flex-fuel engines are designed to run on differing percentages of ethanol, requiring an ethanol content sensor in the fuel system. If that is the case then these vehicles are designed to run on E85, gas, or any blend of the two from the manufacturer. I’m going to assume that your vehicle is a flex fuel capable vehicle from the factory. A flex fuel car running on E85 will generally run just as it does when running on pure gasoline, with a few key exceptions. Ethanol is a renewable fuel made from plant materials and corn biomass. This may seem a little silly to some, but a lot of people don’t know they own a flex fuel vehicle. Just must have been how they ordered them. The number after the E in a fuel like “E85” refers to the percentage of ethanol that’s mixed in. The pump octane number of E85 is typically 110, as opposed to gasoline’s 84 to 93, which means it can withstand more compression before auto-igniting, or “knocking.” Widely-available in the United States, eFlexFuel devices utilize its flex fuel counterpart, E85, to help lower greenhouse gas and life cycle emissions in automobiles, motorcycles, and other recreational vehicles. With most FFVs, the more ethanol that’s in the fuel, the larger the drop in your fuel economy. Using a high ethanol blend will quickly damage the fuel system, and even the engine. Volvo offered the following vehicles in the European market that use E85: [8] With the exception of the 2.5FT engine, all engines were derived from Ford and were similar to … Never put E85 in a vehicle unless you’re completely certain it is a flex fuel model. The 2005 Volvo FlexiFuel S40 was one of the first E85 flex-fuel cars by a Swedish automaker. Some people can't afford a newer FFV vehicle, or simply just want to keep their current one and possibly modify it to run with E85. If you have a flex-fuel vehicle it’s already good to go, but if you have a standard pump gas vehicle it requires some heavy modifications before it can feel that extra boost. Bought from the same dealer. What does the number in flex-fuels mean? Flexible Fuel Vehicles (FFVs) are designed to run on a certain blend of the Ethanol in with unleaded gasoline with concentrations of the Ethanol as high as 85 percent, thus giving us the E85 derivative. My 17 is not flex fuel, but my neighbors up the roads 17 is flex fuel. E85 fuel, for example, is composed of 85% ethanol. Here is a map of stations where you can buy E85 fuel nearby. E85 fuel, on the other hand, is about 85% ethanol to 15% gas. Now on the K2 trucks you can convert the trucks that are not flex fuel, to a flex fuel truck simply by adding the alcohol content sensor and tuning it to enable the correct fuel mapping for e85. Flex fuel engines also have larger fuel pumps and injectors because of the lower energy density of E85 compared to standard pump gas (more on that later) Finally, a flex fuel engine is able to detect ethanol in the fuel system and adjust combustion accordingly. Running ethanol based fuels in Fuel Flex Vehicles is fine since they are specifically designed to withstand all the effects ethanol blends come with. How does ethanol affect fuel economy? Differences in Driving a Flex Fuel Vehicle. Several companies, including Innovate Motorsports, offer a gauge that will display the percentage of ethanol in the fuel using one of these factory flex-fuel sensors.