Not to get off topic, but to those who mentioned AV fuel, I am assuming Aviation fuel, a word of warning, even though it's a higher octane fuel, it's still not the best fuel to run in our motors.
First off, Airplane motors are low compression, and second AV fuel has chemical additives, such as de-iceing agents for high altitude. The ones who run it, notice the white soot tailpipes ?
For me, it's not worth it to cheap out on fuel to save a few bucks, after the money I have in my motor, just saying.