Aviation gas is not good as race gas. The redline on the airplane engine is 2,400 RPM. Yes, really. It has some lead in it and will make bad things happen to an oxygen sensor or catalytic converter. It is great for airplane engines because it was designed for it.
At some airports 100 low lead is 6 bucks a gallon and up. Some places insist in filling up the airplane and they charge for that honor as well. We get some fuel bills of $250 sometimes. Just one fill-up.
It beats filling up a 767, that can easily be 77 grand.
