negativenull , 10 months ago And Leaded fuel is still used in propeller airplanes. nbcnews.com/…/leaded-gas-was-phased-out-25-years-… faa.gov/…/leaded-aviation-fuel-and-environment
And Leaded fuel is still used in propeller airplanes.
nbcnews.com/…/leaded-gas-was-phased-out-25-years-… faa.gov/…/leaded-aviation-fuel-and-environment