In 1977, Tom Ogle claimed to drive his 1970 Ford Galaxie over 200 miles on just two gallons of gas.  His home-made device used engine vacuum and heat from the engine coolant to turn liquid gasoline into a gaseous vapor.  A tangle of hoses and filters delivered the mixture of air and gas vapor directly into the engine’s intake manifold.  During a heavily publicized 1977 test run from El Paso, Texas to Deming, New Mexico, observers watched Ogle as he emptied the fuel tank and added just two gallons of gas before making the round trip.  Ogle patented the design and gained a lot of media attention - but subsequent commercial attempts to scale the system failed and experts dismissed the high-milaege claims mechanically unviable.  Ogle claimed his invention was buried by Big Oil.
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