Propane's octane rating is 104. Both General Motors and Ford manufacture propane vehicles. The oil, oil filter, and spark plugs in a propane vehicle last up to three times longer than in a vehicle running on gasoline. There are 3.5 million propane vehicles worldwide. In the U.S., more than 350,000 vehicles are fueled by propane.
Propane is the third most widely used motor fuel, ranking behind gasoline and diesel.
Propane has been used as an alternative transportation fuel for more than 60 years. Vehicle conversions have been available locally for over 20 years.