[Manute]

Originally posted by winddance@att.n
Avgas will destroy your car. There is 4 times as much lead in 100LL than in the leaded gasoline used in the 50's and 60's. Most older airplane owners refuse to use it in their aircraft, they use unleaded auto gas instead. If used, it is quite common for a Cessna or Piper, etc., to need a valve job every 200-400 hours! Read that as 10,000 to 20,000 miles in the car world. In fact, studies show there is enough lead in one tank of 100LL to lubricate the valves in an airplane, which is designed for leaded, for 10 tank fulls of unleaded gas! In the Cessna, Piper, Ercoupe, etc., forums there is thread after thread about this. So, 100LL isn't even good for the majority of private aircraft flying today. Why use it in your car?

Here we all use avgas 100ll in the airplanes,no matter they are 30 year old pipers or cessnas,and the maintenance schedule is the same without problems.I think they use it here even with the older Boeing Stearmanīs...