Last summer GAMA received a supplemental type certificate for a 100LL replacement, called G100UL. The STC covers certain Lycoming O-320, O-360, and IO-360 pisto

Last summer GAMA received a supplemental type certificate for a 100LL replacement, called G100UL. The STC covers certain Lycoming O-320, O-360, and IO-360 piston engines, which are commonly used in light aircraft. https://www.aopa.org/news-and-media/all-news/2021/july/27/gami-receives-unleaded-avgas-stc https://www.aopa.org/news-and-media/all-news/2021/july/27/ga...