A lot has been written about who is developing 100 unleaded avgas fuels, but we should look at who is NOT working on a candidate fuel.
unleaded fuel
Drop-in unleaded replacement for 100LL expected to be approved in late 2025
A fleet wide approval for an unleaded fuel for general aviation is expected in the third quarter of 2025.
More than 1 million gallons of G100 UL unleaded fuel now available
The famous Howard DGA-6 replica “Mister Mulligan” became the first airplane to fly in an air show powered by G100UL unleaded avgas.