As the temperature of the air inside the tank changes, with colder temperature air can be sucked into the tank through any opening (vent system), carrying moisture with it. Fuel tanks are best stored full, which minimizes the amount of air that can change volume.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
