Propane, also known as liquefied petroleum gas (LPG) or autogas, is a domestically produced fossil fuel that can replace or supplement petroleum-based fuels.

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Propane is a three-carbon alkane gas (C3H8) and is stored under pressure inside a tank and is a colorless, odorless liquid. As pressure is released, the liquid propane vaporizes and turns into gas that is used in combustion. An odorant, ethyl mercaptan, is added for leak detection.

Learn more about propane.

• Propane presents economic advantages compared to gasoline and diesel. It typically sells for 25%-50% cheaper than petroleum fuels, though there are fluctuations during the heating season (October- March). Propane is the most economical alternative fuel source for fleets on a per-mile basis. Propane already boasts a well-developed supply infrastructure that is the least expensive to install among all alternative and conventional fuels. 

• Propane offers significant health and environmental benefits over gasoline and diesel. It is considered one of the cleanest available fossil fuels because it offers observable reductions in emissions. Propane produces 20% less carbon monoxide, 40% less hydrocarbon, 30% fewer oxides of nitrogen, and fewer particulate matter than conventional petroleum-based fuels. These reductions in emissions will contribute less to environmental problems such as smog and acid rain, and contribute less to air-related health problems. Propane is also non-toxic and biodegradable so it poses no threat to soil, surface water, and ground water.

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• Over 90% of the supply of propane comes from domestic sources.

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• Renewal forms of propane are becoming available.

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• Liquid dispensing infrastructure provides a lower cost alternative.