Fuel News

A reader who is a lawyer for a large eastern firm has offered a legal opinion on the warranty implications of the use of GAMI G100UL unleaded fuel in Lycoming and Continental engines. Last week Cirrus issued a service advisory that said it did not approve the use of G100UL in its SR series aircraft […]

General Aviation Modifications Inc. says it will issue a detailed response to Cirrus Aircraft’s recent service advisory discouraging the use of GAMI’s G100UL unleaded fuel in its SR series aircraft. In a statement to AVweb, GAMI said the service advisory appears to be linked to a single incident in which the sealant used in the […]

In a blow to the General Aviation Modifications Inc.’s (GAMI’s) G100UL unleaded aviation fuel program, Cirrus Aircraft posted Service Advisory SA24-14 Tuesday (June 18). The advisory informs operators of Cirrus SR-series aircraft (SR20, SR22 and SR22T) that the manufacturer “does not approve the use of GAMI G100LL fuel in Cirrus SR Series airplanes. Additionally, Cirrus […]

Colorado’s Centennial Airport secured approval for a $300,000 grant aimed at supporting a subsidy program for unleaded aviation fuel sales. The initiative aims to incentivize the switch from leaded to unleaded aviation fuels by offsetting the higher costs of the new unleaded fuel by reimbursing pilots for the price difference. The move comes as the […]

An effort to speed up the transition to unleaded avgas has emerged in a state where elected officials are on record as trying to delay it. In an op-ed published in the Anchorage Daily News, the Alaska Community Action on Toxics says a drop-in replacement for 100LL is available now (G100UL) and two others are […]

VP Aviation is discounting discussion on forums and comments that its proposed unleaded fuel won’t be suitable for big displacement engines, particularly radials. VP Aviation’s fuel, which is being developed in partnership with Lyondell/Basell, is the last one going through the FAA’s Piston Aviation Fuel Initiative (PAFI) which, if successful, will lead to a “fleet […]

The Southern California Airspace Users Working Group is calling on its membership to contact their state senators to block a bill that would begin the phaseout of leaded aviation gasoline in 2027 (amended from 2026). As we reported earlier, State Sen. Caroline Menjivar introduced the bill in February. It calls for banning leaded avgas starting […]

An organization known as SoCalSFV (Southern California San Fernando Valley) contacted AVweb in advance of concurrent anti-general-aviation protests it had planned for Van Nuys Airport (KVNY) and Long Beach Airport (KLGB) today (May 16). According to the letter, the protests are focused on National Air Transportation Association President and CEO Curt Castagna, who also heads […]

The Center for Environmental Health (CEH) appears poised to challenge in court the National Air Transport Association’s assertion that General Aviation Modifications Inc.’s G100UL is not commercially available. “G100UL has been approved by FAA and is now in production.  There are approximately 1 million gallons available for purchase and distribution into California,” CEH’s lawyer Mark […]

The Biden administration has laid out rules for corn farmers to qualify for subsidies to supply feedstock for sustainable aviation fuel (SAF). The corn is now used to make ethanol, which is added to gasoline, but the move to electric cars will diminish that market. Ethanol can be turned into Jet A, however, and will […]