Not something like a passenger jet. Leaded fuel is generally a thing for smaller general aviation aircraft where the designs are ancient and there's a huge barrier to updating anything about how they are operated within regulatory boundaries (which might, finally, have been worked through and there's now I think a lead-free alternative).
Not something like a passenger jet. Leaded fuel is generally a thing for smaller general aviation aircraft where the designs are ancient and there's a huge barrier to updating anything about how they are operated within regulatory boundaries (which might, finally, have been worked through and there's now I think a lead-free alternative).