Alternative Fuel Information
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(Available at the Riverside fuel site)

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. 

  • Energy-rich gas chemically known as a C3H8 and sometimes referred to as liquefied petroleum gas or LPG
  • Approved, clean alternative fuel under the Clean Air Act of 1990
  • Qualifies as an alternative fuel eligible for various federal tax incentives and programs
  • 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
Compressed Natural Gas (CNG)

IFS has not established CNG infrastructure. The Marion County Sherriff Department Fleet of CNG Paddy Wagons refuels at 7 commercial sites located throughout Marion County.


(available at Riverside fuel site)

B20 Biodiesel is an alternative fuel created by mixing regular petroleum diesel, refined from crude oil, with a biofuel produced from agricultural products such as soy beans, grape seeds and mustard seeds, or from waste cooking oils and other organic products. The B number indicates the percentage of biofuel. That means B20 Biodiesel is a blend of 20 percent biofuel and 80 percent petroleum diesel. Although biofuels can be used at any mixture, including 100 percent biofuel, the B20 mixture is considered the best blend for normal use in conventional diesel engines.


(available at 21st Street, Belmont Ave., and West St. fuel sites)

E85 Ethanol BlendE85 is a motor fuel blend consisting of 85% ethanol and 15% gasoline (the winter blend is actually 75% & 25%). It is classified as an alternative fuel by the U.S. Department of Energy. Besides having superior performance characteristics, ethanol burns cleaner than gasoline. It is a completely renewable, domestic, environmentally friendly fuel that enhances the nation's economy and energy independence. For a more complete look at E85, click on the logo at right to download a US DOE pamphlet.

E85 is for use only in flexible fuel vehicles (FFVs). An FFV is designed to burn E85, but can run on regular unleaded gasoline if E85 is unavailable. The city currently has a large number of sedans, pickups, and SUVs that are designated as FFVs.​