Quote Originally Posted by robot
Assuming that you have been watching your plugs all this time and havent seen anything strange (like aluminum on the insulators), there is nothing wrong with AvGas (except that it is illegal to run gas that is untaxed here in the US).

Anyway, if an airplane is at low altitude, how does it keep from screwing up the engine? AvGas does not have air added to it....someone is blowing air up your tailpipe!!!

AvGas may have additives to change it's vapor pressure, etc. Have you also checked the price for race gas in your area? The last barrel that I bought was about $4.25 a gallon....not bad for the good stuff.

mike in tucson
Thanks for responding Mike, I am in the process of building me a shop, and once I have that built, I will look into buying race fuel by the barrel.

My plugs are always fine. Last fill up I paid $1.68 per litre. A liter is near the same size as a US quart.