The Stovebolt Site Forums The Shop Area Paint and Body Shop Paint a new gas tank?

For getting the dust and stuff out of the inside use a cleaner like simple green with some water and slosh it around, the rinse thouroughly, a garden hose will do. Hang or set the tank so the water runs out the intake and let it dry. I usually use a vacuum cleaner to pump warm air through the tank to dry it, but you shouldn't need to.