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by delfinom 972 days ago
There is no requirements for engines to change for unleaded gas.

It is fully compatible with existing engines https://www.g100ul.com/

>Will I have to modify my engine or aircraft to use G100UL avgas?

>Other than placards, no modifications are required. A small placard is attached to the engine and "stick-on" placards are applied to refueling ports. In addition, there is a short POH supplement added to the AFMS.

The engine change is shit pushed by the leaded-gas manufacturing lobby.