ALTHOUGH considerable information concerning the properties and merits of propane and butane as motor fuels has been available, most of it has not sufficiently covered the economics of their supply, availability and price. Therefore, the authors present typical data obtained by their use.
Subsequent to an analysis of the sources, properties, advantages and heating values of propane and butane, two sets of test data comparing these fuels with gasoline are submitted and commented upon. Further data obtained in actual road-operation under load are presented also, together with a discussion of the economic factors which includes comparisons with gasoline as fuel.
Production and distribution problems are considered, as well as the most feasible applications of propane and butane. The authors conclude that, for highway use, their cost per gallon delivered to the fuel tank will generally be as high as, or higher, than the price of regular-grade gasoline.