In 1927, total sales of propane in the U. S. were more than one million gallons. Today, more than 18 billion gallons of propane are consumed in the U.S. yearly. Since 1913, propane has been used as a vehicle fuel. The U.S. Department of Energy projects propane as a leading vehicle fuel into the 21st century. Propane's availability and flexibility provide real answers to domestic problems that threaten our environment and energy security.
Propane is a by-product of natural gas processing and petroleum refining.
Fueling with propane is as easy as attaching a hose equipped with a special nozzle to the vehicle's propane tank. Propane fuels at a rate of 10 to 12 gallons per minute, similar to gasoline. There are over 140 propane fueling stations in Oklahoma. Propane is an approved alternative fuel listed in the Clean Air Act Amendments of 1990 and the Energy Policy Act of 1992. The range of propane vehicles is almost equal to that of comparable gasoline vehicles.