I have a full tank of gas in my stang that has been sitting since about Oct. of last year while I have been tackling the project of rewiring my car. Is the gas still good? Can I add anything to it if it has gone bad?
octane boost then drive it to the gas station and fill the rest of the tank with premium.
i once acidently put regular fuel in my diesel benz. i got all the gas out of the car but had no where to put it. so bout 17 gallons of gas. 15 regular and 2 diesel. i had no choice but to put it in my stang. i let it sit idle for bout 2 hours burning off excess gas and made room. when bout 103 race fuel. and filled it up. octance boosted it and it was fine. so i think ud be pretty good since i put 2 galons of diesel fuel in my tank.