How to Drain the Gas Tank of a Car

If you ever have to drain the gas tank of your car for any reason, you don't have to break your back. It's not as easy getting the gas out as it was to get it in, but you can empty your tank without straining yourself or getting your clothes soiled.

Instructions

    • 1

      Drive the car around until it's drained completely of gas. Of course, this takes precision, since you should have at least enough gas to get you home and run out just as you pull into the driveway or in front of your house.

    • 2

      Look under the bottom of the gas tank for a cap called a "drain cock." Put a tub or pan under the cock that to catch any gas. Move to the side as you loosen the cap to drain the tank. Wear safety glasses to avoid any gas splashing into your eyes. If you don't have a drain cock on your gas tank, move on to Step 3.

    • 3

      Find a rubber hose or fuel line that comes out of the gas tank. This should be in the lowest point off the gas tank. Place your tub or pan under the point at which this hose connects to the gas tank. Loosen the clamp that secures the fuel line to the tank, so you can pull out the hose. The gas should start draining as you pull the hose from the gas tank.

Tips & Warnings

  • Don't smoke while you are draining the gas tank.

  • Don't drill a hole in the gas tank to drain it.

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Comments

  • Omegaman Dec 16, 2008
    Many fuel tanks do not have any hoses at low point in that tank on the outside, but instead,have fuel lines that enter the tank from above. In some of these cases, there may be several. These hoses are not all alike. Only one will go the the bottom of the tank, the others are to return excess fuel back to the tank or are connected to emmisions equipment. If you can locate the one that supplies fuel to the engine, it is possible to use a pump to suck out the fuel or to start a siphon going. DO NOT USE YOU MOUTH to start a siphon. The fuel line can be identified by following it to a fuel filter in most cases. If you are draining the tank because of contamination of some sort, you will want to flush the tank out with fuel again and redrain, but it is better to remove the tank completely to assure complete drainage. There are product on the market available at auto parts stores, which can
  • Omegaman Dec 16, 2008
    Many fuel tanks do not have any hoses at low point in that tank on the outside, but instead,have fuel lines that enter the tank from above. In some of these cases, there may be several. These hoses are not all alike. Only one will go the the bottom of the tank, the others are to return excess fuel back to the tank or are connected to emmisions equipment. If you can locate the one that supplies fuel to the engine, it is possible to use a pump to suck out the fuel or to start a siphon going. DO NOT USE YOU MOUTH to start a siphon. The fuel line can be identified by following it to a fuel filter in most cases. If you are draining the tank because of contamination of some sort, you will want to flush the tank out with fuel again and redrain, but it is better to remove the tank completely to assure complete drainage. There are product on the market available at auto parts stores, which can

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