> Avgas is a specialized fuel used to power piston engine aircraft

The vast majority of airplanes in operation - be it per passenger numbers or cargo tonnes - aren't piston engined but turboprops, turbofans and turbojets.

No, it's not. That article is clearly about leaded aviation gasoline, not Jet-A.

The link says "Jet aircraft and turbine-powered, propeller aircraft do not use avgas, but instead use fuels very similar to kerosene, which does not contain a lead additive."

So I think the reply was accurate.

That’s not jet fuel.