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How to Siphon Petrol From a Car

Updated July 20, 2017

Every now and again, we find that the lawnmower, the snowblower or the motorbike has run out of gasoline (petrol). We could run to the petrol station and get 5 litres (1 gallon) of gasoline, or we could get some out of the car. Fortunately siphoning gasoline from the car is very easy to do when using the proper method for this procedure.

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Siphoning petrol from a car

  1. Remove the gas cap and insert the hose down into the gas tank. Blow into the hose, if you feel resistance or hear bubbling in the gasoline.

  2. Place a container on ground with the cap off, ensuring that the container is lower than the vehicle's gas tank.

  3. Suck on the hose and watch for the gasoline to come into the line; when it reaches about 45 cm (18 inches) from your mouth, quickly remove the hose from your mouth and insert it into the container -- it should continue to flow.

  4. To stop the flow, either pull the hose from the tank or lift the hose up above the gas filler and allow the line to empty back in.

  5. Tip

    There are commercially-made pumps available that siphon gasoline without the need to suck it out of the tank through a hose.


    Gasoline is toxic; transferring gasoline in this manner may result is ingesting some, if care is not taken. Do not do this procedure, unless you are comfortable with it. If you ingest gasoline, contact the poison control centre immediately.

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Things You'll Need

  • 1.5 m (5-foot) clear hose
  • Empty gas container

About the Author

Adam Paul

Adam Paul has been writing professionally since 2007. His work has been featured in "BMW Owners News" and he also wrote a motorcycling column for SmartRemarx.com. Paul studied environmental science and journalism at the University of Maine and holds a Bachelor of Science in conservation law from Unity College.

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