I hooked up an adapter to the schrader valve port on the fuel rail and installed a vinyl tube to drain the fuel out of my fuel tank. IIRC, I left the tank full when I parked it in the garage. It's been a few years since I have driven the Mustang, and I did not use fuel stabilizer. The gas is dark brown and definitely toast. I have managed to drain 3 gallons of fuel, but now I am mostly getting air. The gauge reads as full still. Either my fuel tank is empty, the pump is clogged or the fuel filter is clogged. My assumption is that the fuel filter is clogged. Is their an easier way to drain the fuel (maybe a thin hose down the filler neck and a hand pump)? Or should I assume the fuel filter is clogged, disconnect it before the fuel filter and turn the fuel pump on again and see what comes out? I don't want to add new gas unless I am sure I have removed all of the old fuel. I suppose I could pour a gallon of the bad gas back into the fuel neck and see if I can get another gallon out of the fuel rail adaper. That would tell me that the tank is empty. But if I add the gallon, and nothing more comes out, then something is clogged, I suppose. As always, your thoughts are appreciated, even if it has been a very long time since I have been here. Thanks!