Judge S. Raj Chatterjee noted in the May 30, 2025, ruling that since G100UL has not gone through the ASTM process for specification, it cannot be considered “commercially available.” But the folks behind the unleaded fuel have something to say about that.
unleaded fuel
FAA seeks information on issues related to unleaded fuel
Released March 28, 2025, the SAIB notes that the FAA has not identified an unsafe condition that would warrant an airworthiness directive. The bulletin also notes that it is for “information only.”
GA advocate raises alarm about California unleaded avgas court motion
The court action is “premature and counterproductive,” and could “cause undue harm to the general aviation community,” according to officials with the General Aviation Manufacturers Association (GAMA).
Follow the facts on the transition to unleaded avgas
An EPA study did not in any way, shape, or form prove that leaded avgas is any kind of a health hazard. In fact, it did just the opposite.
Unleaded avgas now available at KRHV
G100UL high octane unleaded avgas is now available for sale at Reid-Hillview Airport (KRHV) near San Jose, California.
One question, many answers
Asking technical experts the same question about exhaust valve recession problems with unleaded fuel and you’ll get a variety of answers — and each person is convinced they are right.
Liability and unleaded fuels
Who will actually “approve” any new unleaded fuel and what does that approval mean?
KSEZ first airport in Arizona to carry SAF
Sedona Airport now offers sustainable aviation fuel (SAF) produced by Neste in Long Beach, California.
New legislation to help Colorado airports transition to unleaded fuel
“We’re very excited about the overall transition to unleaded aviation fuel. This bill will very specifically accelerate that transition by ensuring that state grants for airports support infrastructure upgrades for unleaded aviation fuel,” said Governor Jared Polis.







