ELIMINATE AVIATION GASOLINE LEAD EMISSIONS INITIATIVE
Eliminate the use of lead in aviation fuel for piston engine aircraft in the United States by the end of 2030 without impacting the safe and efficient operation of the existing fleet.
The FAA approves the use of fuel under one of the two approval pathways, either under the Fleet Authorization via the Piston Aviation Fuels Initiative (PAFI) testing program, or under the traditional STC/TC pathway. Once the FAA approves the use of a new fuel, it is...
All unleaded fuels in both STC type certification and PAFI programs have performed well across all the engines tested, showing positive results such as reduced engine wear and cleaner operation, particularly in Continental engines. It is not practical nor possible to...
As directed by Congress in the FAA Reauthorization Act of 2024, FAA is currently developing a transition plan to safely enable the transition of the piston-engine general aviation aircraft fleet to unleaded avgas by 2030. This includes consideration of early...
Owner/operators of Experimental Amateur-Built aircraft are responsible for reviewing available data and determining suitability for their individual aircraft. For those interested in using fuel(s) approved via the STC process, we recommend contacting the STC holder...
All currently approved unleaded fuels and those in development are safely mixable with 100LL. Pilots and operators should always check the fuel’s specification or approval documents (i.e.- Supplemental Type Certificate, Pilots Operating Handbook, Owner’s Manual,...
