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In theory, yes they will. A couple of problems do exist. First Alcohol is more volatile than gasoline. That is why in the summer it is more likely a vehicle will vapor lock if you are running a blend. That is one reason that the blend has been limited to 10% unless you have an E-85 vehicle which is designed to run on 85% alcohol. I have heard that Brazil has vehicles that will run on 100% alcohol. The first issue is that alcohol has fewer BTU’s than gasoline, thus lower horsepower per gallon. The upside of this is that you can really raise the compression ratio in the engine and advance the ignition timing (alcohol burns slower) to get most of the power loss back, but then you can’t run pump gas without it pinging either. The second issue is how to meter the fuel and avoid the vapor locking issue; from what I’ve heard most systems that run high percentages of alcohol use some kind of fuel system pressurization. Farmalls have run on propane, distillate, kerosene, gasoline, and even some of the old ones ran water and kerosene. I’m sure that there is a way to get them to run on pure alcohol, but the cost might not be justifiable at today’s prices. Tomorrows price may be a different story though. Now, where did I put that jug of corn squeeze’ns anyway? :>)
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