I unnerstand. I know when Evan and I removed the tank from Vixen after she had been sitting since the eighties, we were totally expecting a crap fest, but the tank was almost spotless. I told Evan that it was due to non ethanol and possibly even some left over leaded gas. It has about 2" of gas in the bottom. It smelled like the obligatory "old gas" but I saved it and used it to start a barrel fire. It went POOF just like new gas would. I am sure it would have still run the car.