As the FAA's leaded avgas replacement effort grinds to a temporary halt, General Aviation Modifications Inc. says it's close to completing testing on its own 100-octane unleaded fuel. GAMI sidestepped the FAA's Piston Aviation Fuel Initiative in favor of a more streamlined STC approval process that's now within a few steps of being completed.
This is a companion discussion topic for the original entry at https://www.avweb.com/ownership/gamis-g100-avgas-replacement-nears-end-of-testing