Quote:
Originally posted by Tshabet
I have restored cars that had gas sitting in the tank for more than 50 years...bleah! I would recommend buying an etching/sealing kit, which you can find online. This will leave you with a white (I believe latex based) coating on the inside of the tank. But before you use the etch or the sealer, you'll want to get the tank as clean as you can. For my most stubborn tanks, I've had good success with alternating steam cleaning and using drain cleaning products....I've had my best success with hot water and lye.
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The gas was awful--especially when I kicked over the pan holding about 2 gallons all over my back porch(makeshift garage). I am going to get the tank professionaly cleaned/dipped at a local machine shop or radiator shop--then probably use a DIY seal kit--just as you mention.
