Indianapolis (IN) - Using fully stock production gasoline engine powered vehicles, with engine modifications limited only to changes in fuel mixture and ignition timing, Shell Oil Company served host to an open competition in automobile efficiency.

The fruit of their forum was sweet indeed as a two-door, full-sized production car was able to drive off with the prize by achieving 376.59 miles in normal driving conditions using a single gallon of fuel. A more heavily modified vehicle was able to achieve over 1140 miles on a single gallon of fuel.


Results like these are truly astounding and beg the question: Are we really getting all we can in efficiency from auto makers?







Images of the test cars in question: Shell Oil 1973 - 376 MPG!


A PDF on these test cars.


Anybody wonder why the tech used on these old cars can't be implemented now?


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