Keller's key concern is the harmful effects of aviation fuel (Avgas). Even though lead was banned in automotive fuel in 1996, it hasn't made that same sweeping transition in general aviation.
March 17, 2018
Keller's key concern is the harmful effects of aviation fuel (Avgas). Even though lead was banned in automotive fuel in 1996, it hasn't made that same sweeping transition in general aviation.
March 17, 2018