Frankly, standardization is often the only option given the limits of a universal technology standard. 1  1. Standardization lag: It takes time to understand a problem domain well enough to make a proper standard.
A flexible-fuel vehicle (FFV) or dual-fuel vehicle (colloquially called a flex-fuel vehicle) is an alternative fuel vehicle with an internal combustion engine designed to run on more than one fuel, usually gasoline blended with either ethanol or methanol fuel, and both fuels are stored in the same common tank.
E85 GM. GM E85 Flex Fuel Vehicles. General Motors Flex Fuel Vehicles . GM encompasses many Brands from Buick to Hummer , Chevrolet tops GMâs list of brands and those Chevrolet E85 FFVs are listed separately . Also all GM models should have yellow Gas caps.