every modern vehicle has an electric pump in the gas tank.Like Melensdad I have a transfer system for diesel. My gasoline storage uses a 14-gallon, plastic tank and is gravity fed. I also have a portable, commercial 30-gallon, grounded steel tank with a hand pump. Before I put an electric pump on a gasoline tank I'd make darned sure that I knew what I was doing. The potential for disaster is high.