Originally Posted by t walgamuth

When I bought my office building it had an old 1550 gallon fuel tank in the basement. I always assumed it was empty. One day I decided to have it removed so sent a worker down to open the access hole to see how much gunk was left in the tank. he came back and said it was full. Nearest I can figure was it had been setting there since the boiler had been converted to natural gas. Best guess was about 40 years.

We took a sample off the bottom and found it was nice and clear though a bit dark in color. First I tried to get a fuel supplier to come pump it but they refused anything more than a year old. They suggested a hazardous material contractor. I thougtht fooey, that stuff is good.

I installed a pump with an ordinary truck diesel fuel filter in line and pumped it into my 91 350sdl tank and drove away.

No issues.