Today’s search for an unleaded avgas is so different from similar searches in the past, which was a very large cooperative effort to find an answer — and they were looking for one fuel that could be produced by any oil company.
unleaded avgas
FAA orders California county to reverse 100LL ban
In its ruling on March 24, 2025, the director of the FAA Office of Airports Compliance and Management Analysis ordered the county take three corrective actions.
Alaska’s avgas anxiety
“Without a dependable source of avgas, many Alaskans would lose their only access to numerous critical services, including medical care, groceries, and mail.”
Efforts to stop 100LL sales in California thwarted
A judge has issued a tentative ruling denying efforts by the Center for Environmental Health to enforce a decade-old deal with California FBOs to stop selling 100LL when an “commercially available” unleaded avgas was on the market.
Common misconceptions about unleaded avgas
Why can’t general aviation switch over the unleaded gas as easily as the automobile industry did?
GAMI tests show G100UL does not damage paint
In the video, George Braly, a company co-founder and the person in charge of engineering, says the company conducted a 10-day simulation of a slow leak of the fuel “and no paint damage resulted.”
Unleaded avgas: As I see it
Switching GA to unleaded fuel is something that has been going on for the better part of 50 years, if not longer. I vividly remember being pounded on at EAA AirVenture Oshkosh for many, many years as to why Lycoming wouldn’t approve the use of “car gas” in its engines.
Swift Fuels unleaded avgas now available at KMYF
Crownair Aviation, an FBO at Montgomery-Gibbs Executive Airport (KMYF) is now selling Swift Fuel’s 94-octane unleaded aviation gasoline.
The latest on the journey to unleaded avgas
“As the general aviation community works toward this goal, the role of aircraft owners cannot be overstated,” EAGLE officials said in the initiative’s latest update. “They are, after all, the ultimate end-users of any new fuel, and their buy-in will be critical to its success.”










