Not so fast. G100UL *can* be approved for all piston engine aircraft. There is n...

		labcomputer on Oct 27, 2023 \| parent \| context \| favorite \| on: Finding that lead emissions from aircraft engines ... Not so fast. G100UL can be approved for all piston engine aircraft. There is not a blanket approval. You still have to go here (https://stc.g100ul.com/aircraft/) and buy paperwork that makes your individual airframe and engine legal. What the FAA approved was for GAMI to sell that paperwork for all piston aircraft.

for a whole $250? that's a drop in the bucket for anything GA related.