#### skydawg

##### Well-Known Member
Many states, starting with California, stated they will be outlawing AVGAS as soon as approved alternative becomes available.… regardless of cost. GA just got even more expensive.

My C172 has a V8 engine that’s flex fuel rated and rarely burn AVGAS in it, mostly just low octane ethanol car gas from local station or airport FBOs that have an on field pump for ground equipment. I converted engine mostly to reduce operating cost, which went from over $60 to less than$20/hr with the V8, but also to eliminate the need of buying and exhausting leaded gas. The engine had several other benefits like not needing an engine run-up before takeoff as there was no lead to burn from the plugs. it well Out performs any stock C172 model, so there‘s a lot of other benefits besides lower cost.

Point being, leaded fuel was outlawed decades ago as it should have, except for aircraft AVGAS, which Continental and Lycoming some how convinced governments to allow making the same engine for the next 5 decades Which required the lead.…. And likely allow them to make the same engine for another few decades. If the engine manufacturers upgraded their design, or were forced to by regulations as other engine industries, the issue would have been solved long ago. Now, most of us will have to pay more to keep flying the same engine.

#### blane.c

##### Well-Known Member
Fact Sheet – Leaded Aviation Fuel and the Environment (faa.gov)