From a technical book about agricultural tractors, printed in 1952. "Distillate being sold for tractors resembles and frequently is a No.1 fuel oil. It is sold in the average town, not as a fuel oil for heating purposes, but as a tractor fuel, although the dealer may sell from the same tank for both purposes." Some oil companies did supply a distillate specifically for use as a tractor fuel. "Nine states in 1949 imposed gasoline taxes that were not exempt or refunded to the farmer when used for agricultural purposes." Regular gasoline,cents/acre 22.61 Regular gasoline, cents/acre with tax 35.23 Distillate cents/acre 17.5 Fuel prices, central Iowa, May, 1948. Octane rating of gasoline 70. Octane rating of distillate 31.3 "Gasolines make up 80% of tractor fuel used, distillate accounts for 6%, Diesel fuel 4%, kerosene 3%, and miscellaneous fuels 7%." (U.S.D.A.,1949) Farmall H compression ratios : Gasoline - 5.9; Combination gasoline/dist - 4.75; Kerosene - 4.5. Thought the above description of distillate and the reason for using it might help.
|