I will be pulling my gas tank for a cleaning at a local radiator shop. The tank is in pretty good shape with no holes at all, just some black junk adhered to the inside of it. Should I just have it cleaned or should I also coat the inside with something? It seems to me that the new gasoline already has 10% ethanol which should keep the rust at bay and the ethanol might eventually break down whatever coating is applied. Any thoughts?
There are really no shortcuts to doing this right the first time. Disconnect the fuel line at the tank, pull the tank and have it professionally cleaned at a radiator shop. Verify that the sending unit is clean and working. Replace the tank and replace the complete fuel line. After 30 years its ready. My 2 cents...
I dropped off the tank to a local radiator shop and had them clean it out. After I spent $162 to have it cleaned the owner recommended that I install an inline filter. He explained to me that NYS doesn't allow boiling out of tanks anymore and he did the best job he could legally do. Now I know why - when I got home I figured I'd give it a final rinse with a gallon of acetone. I got so much more junk out of it that I now will have to use Lestoil and a pressure washer to do the job again. After that I will use Metal Rescue to address any rust issues. I will then have to buy another gallon of acetone to do a final rinse. Next time - I'll do the job myself and save myself a weeks worth of waiting time and money.