To answer Thorn's questions: There is a microscopic increase in the chance of an explosiion.
The theory is that pumping gas increases the amount of gasoline fumes. If your engine in running, the spark plugs are sparking. If the fumes come in contact with the sparking sparkplugs, KABOOM!
The theory is that pumping gas increases the amount of gasoline fumes. If your engine in running, the spark plugs are sparking. If the fumes come in contact with the sparking sparkplugs, KABOOM!
Comment