For nearly three decades, general aviation has been struggling to find an unleaded replacement for 100LL avgas. General Aviation Modifications Inc. (GAMI) in Ada, Oklahoma says they've found it. AVweb's Paul Bertorelli recently took a test flight to see how the new fuel works.
This is a companion discussion topic for the original entry at https://www.avweb.com/multimedia/votw/exclusive-video-avwebs-g100ul-flight-test