AKSuperDually says:eventually
diesel is the fuel of the future, it can be created artificially, and diesel motors are all flex fuel...they run off a variety of fuels. Heck, before they implimented this stupid low sulfur crap I was getting 26 mpg on the highway with my 7.3L...you just need a few smart mods to get good mileage. Before the ULSD came on the market and practically doubled the fuel costs....It was cheaper for us to drive my 1 ton dually then our subaru outback.