Vers un avgas sans plomb

https://www.flyer.co.uk/gamis-high-octane-unleaded-avgas-approved-by-faa/?

GAMI’s high-octane unleaded avgas approvedIt’s taken 11 years of hard work but General Aviation Modifications, Inc – better known as GAMI – has finally won approval from the FAA for its G100 high-octane unleaded avgas.
Source: Flyer