Autogas: Propane as an Engine Fuel

Propane autogas is the term for propane when fueling an on-road vehicle. It is a safe, domestically produced engine fuel with a robust infrastructure and financial efficiencies. Transportation managers choose propane autogas to fuel their organization’s vehicles because of economical savings, energy security and environmental factors.

Couple this clean-burning, affordable fuel with the engineering and manufacturing background of ROUSH CleanTech, and fleet managers have a readily available and economic fuel solution.


  • Is an energy-rich gas chemically known as a C3H8, and sometimes referred to as liquefied petroleum gas or LPG.
  • Is an approved clean alternative fuel under the Clean Air Act of 1990.
  • Qualifies as an alternative fuel eligible for various federal tax incentives and programs.
  • 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 greater engine efficiency.
  • First appeared as an on-road engine fuel in 1913.

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