Testing Is ‘Paused’ On Unleaded Avgas Candidate

Piston aircraft line up for takeoff at Reid-Hillview Airport, which stopped supplying 100LL in 2022. 

Credit: Bill Carey
Work has been suspended on one of two candidate fuels being advanced through an FAA program to develop a high-octane unleaded avgas that can work across the entirety of the U.S. piston-engine aircraft fleet. Testing of 100M, a 100-octane unleaded avgas developed by energy company Phillips 66 and...
Bill Carey

Bill covers business aviation and advanced air mobility for Aviation Week Network. A former newspaper reporter, he has also covered the airline industry, military aviation, commercial space and uncrewed aircraft systems. He is the author of 'Enter The Drones, The FAA and UAVs in America,' published in 2016.

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Testing Is ‘Paused’ On Unleaded Avgas Candidate is published in The Weekly of Business Aviation, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN membership.

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