Also known as liquefied petroleum gas (LPG) or propane autogas, propane is a clean-burning alternative fuel that’s been used for decades to power light-, medium-, and heavy-duty propane vehicles.
Propane used in vehicles is specified as HD-5 propane and is a mixture of propane with smaller amounts of other gases. According to the Gas Processors Association’s HD-5 specification for propane, it must consist of at least 90% propane, no more than 5% propylene, and 5% other gases, primarily butane and butylene.
Did You Know?
Propane is stored onboard a vehicle in a tank pressurized to about 150 pounds per square inch—about twice the pressure of an inflated truck tire.
Learn more about Propane in the Clean Cities University Online Courses.
Find Propane stations near you with the AFDC Station Locator!
Case Study on Propane
Vehicle and Infrastructure Availability
Fuel Economy and Performance
Public Health and Environment