EAA - Experimental Aircraft Association  

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Who We Are

EAA began testing and evaluating alternate fuels for aircraft piston engines in 1964. These included not only automobile gasoline, but also ethanol. In 1982, EAA successfully changed FAA policy to consider the use of automobile gasoline in aircraft. The EAA type certificate program resulted in an FAA Supplemental Type Certificate (STC) being issued for the use of automobile gasoline, rather than aviation gasoline, in the Cessna 150 aircraft, powered by a Continental O-200 engine. The first pilot to legally fly in an aircraft with automobile gasoline was, then FAA Administrator, Lynn Helms. Since then, more than 40,000 STC's have been issued

Please note that our STC's are only for engines that are certified for the use of 80 octane fuel. Engines requiring 100 octane fuel must still use 100 octane avgas.

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