How to Siphon Gas From a Car: What You Need to Know

car tank

Siphoning gas from a car can be a risky and potentially dangerous task, but it is sometimes necessary in certain situations. Whether you’re stranded on the side of the road with an empty tank or need to transfer fuel from one vehicle to another, knowing how to properly siphon gas can save you time and money. It’s important to note, however, that siphoning gas is illegal in some states and can also damage your vehicle if not done correctly. In this guide, we’ll walk you through the steps of siphoning gas safely and effectively.

How Do You Syphon Gas?

1. Gather the Necessary Materials

You will need a length of tubing that is long enough to reach from the gas tank to a container on the ground, a container to hold the gas, and a pair of pliers.

2. Locate the Fuel Tank

The fuel tank is usually located beneath the car, near the rear wheels.

3. Insert the Tubing

Insert one end of the tubing into the gas tank through the fuel filler neck. Make sure the tubing is securely in place and that it reaches the bottom of the tank.

4. Create Suction

Suck on the other end of the tubing to create suction. This will start the flow of gas into the tubing. Alternatively, you can use a hand pump or squeeze the tubing to create suction.

5. Direct the Gas into the Container

Once gas is flowing through the tubing, direct the other end of the tubing into the container. Make sure the container is on the ground and positioned lower than the gas tank to allow for gravity to help with the flow of gas.

6. Monitor the Flow

Keep an eye on the flow of gas and adjust the tubing as needed to ensure that it stays submerged in the gas.

7. Stop the Flow

When you have siphoned enough gas, remove the tubing from the tank and allow the remaining gas to drain into the container. Use the pliers to crimp the tubing to stop the flow of gas.

8. Dispose of the Gas Properly

It is important to dispose of the gas properly. Check with your local authorities for regulations on how to dispose of gasoline safely.

Siphoning Using Air Pressure

Another method of siphoning gas is using air pressure. This involves inserting one end of the siphon hose into the gas tank and the other end into a container. Then, using a small air compressor or bike pump, create pressure in the container. This pressure will force the gas out of the tank and into the container. However, this method can be dangerous if not done properly, as too much pressure can cause the gas tank to rupture or explode. It is best to use a manual or electric pump for safe and efficient gas transfer.

Can You Siphon Gas Using Mouth Suction?

It is not recommended to siphon gas using mouth suction as it can be dangerous and potentially harmful to your health. Inhaling gasoline vapours can cause dizziness, nausea, and even respiratory problems. It is best to use a manual siphon pump or an electric pump to transfer the gas safely.


Siphoning gas from a car can be a useful skill to have in emergencies or when you need to transfer fuel from one vehicle to another. However, it is important to remember that siphoning gas can be dangerous and illegal in some areas. Always use caution and follow proper safety procedures when attempting to siphon gas. Additionally, it is crucial to respect other people’s property and never attempts to siphon gas without their permission. With the right tools and techniques, siphoning gas can be a relatively simple task, but it is important to approach it with care and responsibility.

If you are dealing with a contaminated fuel problem and need help with siphoning, contact Fuel Fixer. We are the leading wrong fuel specialists. Make yourself safe and call us – your car will be fixed while you wait.

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