Five years before the deadline for the U.S. to switch to unleaded avgas, the first airport to sell General Aviation Modifications Inc.’s (GAMI) G100UL high-octane unleaded avgas to airplane owners celebrated the new fuel’s availability. Northern California’s Reid-Hillview (KRHV) welcomed airplane owners on November 2, 2024 to the inauguration of G100UL with 7,500 gallons priced at $6.99 per gallon, lower than prices for leaded 100LL avgas at some local San Francisco Bay Area Airports.

At the event, GAMI and the airport arranged for a mechanic with inspection authorization to help owners fill out and sign off on the supplemental type certificate (STC) paperwork required to use G100UL in their airplanes.