The FAA has taken steps during the past 10 years to investigate 77 qualified unleaded alternatives to replace 100LL Avgas, but 100% have challenging issues, until now

The combustion of leaded 100LL Avgas is responsible for 50% of lead emissions in our atmosphere ( 2010 EPA report )

Our 100SF fuel is the only unleaded 102-octane alternative that

has an approved ASTM Production Specification (ASTM D7719)