Siphon the fuel out of the tank to make the tank lighter and easier to handle. If you don’t have a lift available to make removing the fuel tank easier, use a floor jack. Place a 4-foot length of 2-inch by 6-inch board on the jack. This will help steady the tank on the jack while you roll it out from under the vehicle. While it’s easier to balance with two people, one person can remove the fuel tank with minimal trouble using this method.