GAMI Gains Avgas STC for Pistons on Unleaded Fuel

The approval comes after the broad and ongoing compliance of the manufacturer's fuel in aircraft across the fleet.

Friday, September 02, 2022 at 08:25 AM ET

Verified

The distribution of unleaded fuel will be initially driven by industry partners to the EAGLE initiative, such as Avfuel. [Photo: Julie Boatman]

Key Takeaways:

General Aviation Modifications Inc. (GAMI) has received FAA supplemental type certificate (STC) approval for its 100-octane unleaded fuel (G100UL).
This STC allows G100UL to be used in every general aviation spark-ignition engine and airframe, including higher-compression engines and the piston helicopter fleet.
The aviation industry, including GAMA, AOPA, and HAI, hails this approval as a significant milestone towards eliminating leaded avgas and ensuring the future of general aviation.
While a major step forward, the article notes that further work on commercialization, distribution, and the development of other unleaded fuel options is still needed.

See a mistake? Contact us.

A milestone in the search for an unleaded fuel replacement for 100LL avgas has been met.

General Aviation Modifications Inc. (GAMI) announced yesterday that its 100-octane unleaded fuel (G100UL) gained FAA supplemental type certificate (STC) approval for use in every general aviation engine using spark-ignition, and each airframe in which those engines are currently operated. This will include higher-compression engines not covered by GAMI’s previous STCs.