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.
Henry Ford built the first flex fuel vehicle in 1908; the Model T was designed to operate on gasoline, ethanol or a mix. report this answer. Updated on Thursday, February 02 2012 at 05:20AM EST. Source: www.epa.gov/...