I have read some threads here, and elsewhere on the world wide web, and talked to some local good ol boy mechanics. There seem to be all sorts of fuel tank cleaning options including screws and a cement mixer.

I think I want to start with white vinegar. This is goign to be for one of the large saddle tanks on the side of my flatbed, the one that was used when the truck was alive 20 years ago. My endoscope clouded up, so I can't see if there is rust in there or not, but assuming there is.

I doubt that I am goign to get enough vinegar to fill the tank, and I am trying to avoid removing the tank initially. I have read elsewhere about flushing with water, filling with vinegar soaking for a few days, then flushing again. There was something about a flash rust after, I need to read more, but wanted to check and see if there was any other vinegar specific advice here that I may have missed.

Thanks (odds are I may replace the tank with aluminum, I am just trying to get it running enough to check out all the other systems before figuring out what needs to be replaced or repaired or rebuilt)


1959 Chevy Viking. Belonged to my Great Grandfather