While GAMI’s G100UL high octane unleaded avgas is FAA approved for every aircraft model in the FAA’s database, there’s still some mystery among many aircraft owners. Moreover, how does the new fuel run in a typical GA aircraft engine? In this video, Aviation Consumer magazine’s Larry Anglisano Zoomed up with Jon Sisk who recently conducted an exhausting flight trial in his Lycoming-equipped Van’s RV-14, White Lightning. Sisk made side-by-side engine data comparisons burning G100UL and 100LL and reported his findings, with some advice on how you can add this approved fuel to the aircraft’s limitations.

Larry Anglisano
Editor in Chief Larry Anglisano has been a staple at Aviation Consumer since 1995. An active land, sea and glider pilot, Larry has over 30 years’ experience as an avionics repairman and flight test pilot. He’s the editorial director overseeing sister publications Aviation Safety magazine, IFR magazine and is a regular contributor to KITPLANES magazine with his Avionics Bootcamp column.