GAMI Now Selling STCs for G100UL

GAMI is now selling STCs for G100UL, with the modifications company opening its website to the purchase process with incentives for those who apply by March 31.

Amelia Walsh

Friday, February 10, 2023 at 02:34 PM ET

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GAMI has launched the application process for purchasing its STC for G100UL avgas.

Key Takeaways:

General Aviation Modifications, Inc. (GAMI) is now selling Supplemental Type Certificates (STCs) for its G100UL high octane unleaded avgas, making it the first and only universally approved solution for all general aviation piston aircraft.
The STCs vary in cost (e.g., ~$600 for some aircraft), and the fuel is estimated to be 60-85 cents/gallon more than 100LL, though GAMI anticipates these costs will be offset by lower maintenance and extended oil change intervals due to a cleaner burn.
G100UL fuel rollout begins in California later this year, expanding to the West Coast by 2024 and nationally by 2026, representing a major step toward the industry's 2030 goal of eliminating leaded avgas amidst ongoing discussions about transition speed.

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General Aviation Modifications, Inc. (GAMI) is now selling supplemental type certificates (STCs) for its G100UL high octane unleaded avgas—the first and only approved solution for all general aviation piston aircraft.

In order to purchase the STC, pilots will need aircraft and engine information including N-number, aircraft model and serial number, and engine manufacturer/serial number. STC documents will then be delivered via PDF immediately and placards will be mailed within about 10 days.