Almost 75 percent of propane used in the U.S. comes from natural gas refining, and the remaining comes from petroleum during the refining process. More than 90 percent of the United States propane autogas supply is produced domestically, with an additional 7 percent from Canada.
Propane has an octane rating of 106 (compared to premium grade gasoline of 91 to 92), which allows for a higher compression ratio in the engine and better performance.
Propane is an abundant, American-made fuel. Our country produces more than 21 billion gallons of propane and is using only 9 billion gallons for home heating, cooking, and transportation. This leaves a surplus for fleets to use this cost-effective, clean-burning and domestic energy source. Fueling with propane helps the nation’s energy security goals and reduces the nation’s dependence on imported oil.