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.
Command PRO EFI Flex Fuel. Command PROÂ® EFI V-twin horizontal-shaft gasoline engine with closed-loop electronic fuel injection runs on all ethanol blends between E0 and E85. Electronic fuel injector and intelligent sensor deliver fuel when and where there is a power demand.