This is clearly meant to be sarcasm, but I think you've got your facts wrong: commercial jet airplanes don't use leaded gasoline. They use Jet-A and similar for

This is clearly meant to be sarcasm, but I think you've got your facts wrong: commercial jet airplanes don't use leaded gasoline. They use Jet-A and similar formulations, which are essentially just kerosene[1] and contain no lead[2]. (I think you're thinking of avgas, which is used by piston-driven engines. These don't appear much in commercial aviation anymore.) [1]: https://en.wikipedia.org/wiki/Jet_fuel https://en.wikipedia.org/wiki/Jet_fuel [2]: https://www.faa.gov/newsroom/leaded-aviation-fuel-and-environment https://www.faa.gov/newsroom/leaded-aviation-fuel-and-enviro...