i pumped Jet A and av gas for 2 years, that jet fuel smell never goes away. AV GAS= is used in piston powered aircraft, it has a high octane rate, they use it in drag cars because of the high octane and it burns clean, Jet A : is similar to diesel in octane levels it has several other additives/ hydrocarbons. The caravans (Tropic Air) run off Jet A, which I believe they only refuel at the international airport??, You could throw a lit cigarette into a bucket of jet fuel and it would put the cigarette out, if you threw a cigarette in a bucket of av gas, you wouldn't be here!!!