Re: Cleaning a fuel tank
I just did this. Pulled the tank last weekend after pumping out about 9 gal. of diesel. Took it to a radiator repair service that also does tanks. They cleaned the inside w/ some kind of cleaner and welded a "cap" on the bottom of the tank as the Aluminum was pitted.
Buddies of mine had this done and the company cut an access port in the side of the tank to get all the gunk out that was caked on the bottom.
Look in you Yellow Pages (remember them?) for some place that does radiators or associated type Tanks. Might take some calling around. If your tank is caked up just having the fuel polished will NOT get it all out.
CS 36M DIANTHUS