How to Siphon Gas From a Car – Step-by-Step Tutorial

In this post, we will show you how to siphon gas from a car and answer many frequently asked questions regarding siphoning gas from a car.

Siphoning gas from a car is a lot easier and cleaner than trying to get it out of a gas can or compressor.

Siphoning gas out of a car used to be a simple process. All you had to do was stick a hose into the tank. Nothing got in the way. Over the years, many newer cars have been fitted with anti-roll valves or anti-siphon nets to block access to the fuel tank.

Because of the dangers to your safety, you should only siphon gas if you are in an emergency and have no other choice.

How Does Siphoning Gas From a Car Work?

Siphoning fuel is the process of removing liquid by using a siphon. The siphon is an inverted U-shaped tube. Gas siphons attach to the car’s fuel filter using a hose, canister cap, and barbed fitting.

This allows the liquid to rise to the surface of the liquid source without the use of a pump. Gravity causes the liquid to sink through the tube.

For most of the history of science, scientists have believed that siphons work due to atmospheric pressure.

A simple siphon consists of a pipe in a larger container that runs up a bump (the edge of the container) to empty into a lower-level container.

What you need to siphon gas from a new vehicle

Because modern cars implement controls in their fuel lines to prevent fuel theft, the process of venting gasoline is much more difficult. The best way is to buy a petrol siphon kit as part of a survival kit. These kits are also suitable for pumping all types of liquids.

Knowing how to safely vacuum your new car is an invaluable skill that can help you in an emergency.

Pumping gas may no longer be as easy as sticking a hose into the tank, but it’s still possible to pump gas from a new car.

Needed tools to siphon gas from a car

  • Container to siphon into.
  • Sufficient hose length to stretch from the inside of the car’s gas tank to your container.
  • Patented Hose Retainer Clip.
  • Weighted Copper Jigger(heavy enough to sink your hose to begin siphoning fuel).

How to prevent your car from being siphoned

There are actually two devices that prevent you from sucking gas out of your car. The first is the anti-siphon screen. This is a mesh screen that prevents you from putting any solids into the tank. This is usually located further up the filler pipe.

Modern vehicles have many anti-siphon technologies that help prevent this practice. These include a fuel filler flap that locks when the vehicle is locked, a check valve that prevents fuel from entering the fuel line, or a fuel filter that prevents hoses from extending into the tank itself.

This has prompted many criminals to resort to the destructive act of drilling directly into the fuel tank itself.

How to Siphon Gas Step by Step

Siphoning gas from a car’s gas tank might be difficult if you are doing it for the first time without correct instructions. As a result, the steps below have been put together to assist you in learning how to siphon gas.

1. Connect the siphon to the fuel line

Place the gas tank on the ground near the opening of the car’s gas tank. Once gas starts flowing through the pipe, it will, of course, continue to flow as long as you keep the pipe below the gas level in the tank.

Because of this, it is often convenient to place your gas tanks or containers on the ground below the fuel tank.

One end of the siphon pump sucks in the liquid, and the other end discharges the liquid. Put the liquid-absorbing end into the air tank and the other end into the air tank.

Make sure the siphon hose in the device’s air tank is submerged in the gas.

2. Install a siphon

Buy or get a siphon pump. If you don’t want to use a temporary siphon, professional siphon pumps are commercially available for as little as $10 to $15. These pumps come in all shapes and sizes—some are automatic, and some are manually operated.

However, the vast majority of them work similarly: a siphon pump placed in the middle of the length of the pipe creates suction that pulls fluid from one end of the pipe to the other.

Never attempt to extract gas without the right tools. While there are ways how to siphon gas without the use of a pump, these involve blowing or sucking a gas siphon hose to create suction, which is very dangerous.

Mouth sucking can cause you to inhale gas fumes and even swallow gasoline, both of which can cause dizziness, headaches, throat irritation, and vomiting. The siphon pump is by far the safest method of how to siphon gas and the only method.

3. Stopping the flow by lifting the tubing’s end above the gas tank

When the canister is full or the required amount of gasoline, be sure you lift the end of the siphon pump hose into the gas can. You may also halt the flow by lifting the gas container.

The remaining gas in the pipe flows back into the vehicle’s gas tank. You can also remove the seal to release air pressure and stop fluid flow.

After the gas extraction is complete, remove the two tubes from the container and the gas tank.

Anti-Siphon technology

This is a useful emergency function that can save your life if a car accident turns into a fire. Even while it serves a noble purpose in terms of gas siphoning, it may present a few issues that you can address.

You may need to use a screwdriver to keep the fuel tank open while you work on the tubing. It is, however, unsafe since you risk damaging your car’s gas tank.

Other times, a butterfly flap valve (or butterfly valve) or a ball valve can be bypassed by introducing a smaller siphoning tube. However, this substantially slows down the process.

More or less, the efficiency of how to siphon gas relies on the age of a car; if it is old, you will need more time, but because it is less likely to have an anti-siphon system installed than modern cars, siphoning fuel will be simple.

Be prepared for the winter season

It may seem difficult to believe, but gasoline is susceptible to freezing in cold conditions. This is a problem if you reside in a chilly climate. Some vehicles feature cold-protected fuel lines, although they are uncommon.

When planning for a tough winter, it may be a good idea to invest in tubing, a fuel pump, or adequate siphon devices.

Some methods of how to siphon gas from the fuel tank

There are three main ways to siphon gas. Continue reading to learn the approach of each method, as well as their distinct advantages and cons.

1. First method

The first method is not well known but is not much more complicated than manual pumping. With this method, you’re basically blowing gas out of the gas tank rather than sucking it in to get the gas flowing. To perform this method, you will need two pipes of different lengths.

2. Second and easiest method

The easiest way to extract gas is to use a suction siphon pump, which allows you to operate securely without getting your hands soiled or exposing yourself to hazardous gas vapors.

When you’re ready, pump a few times to allow the gas to flow freely, or just turn off the pump if you have a mechanical pump.

3. Third the old-fashioned

Once it’s sealed in the tank, you can start blowing through the shorter tube to get the gas out of the longer tube. Again, you really want to make sure you don’t accidentally inhale gas or fumes. To prevent this, you can place your thumb on the open end after blowing.

Health Problems From Manual Siphoning

It’s sad that this is the most well-known strategy because it’s also the most risky. This is, of course, since you’re literally breathing gas into your mouth, whereas the other methods don’t need you to make direct contact with or touch the gas.

Most individuals should be aware that breathing and handling gas vapors are hazardous to one’s health, but many are unaware of how harmful it may be.

Manual siphoning causes the following health issues:

  • Gas use by accident
  • Inhaling gas fumes
  • A potential fire hazard

Possibility of gasoline poisoning

The risk of gasoline poisoning from siphoning gas from modern automobiles has received widespread attention in recent months, prompting the United States Poison Control Centers to issue a statewide warning about the deadly practice.

Use two pieces of flexible rubber tubing, one inside the gas tank and one outside the vehicle, to safely siphon gas from modern automobiles. The siphon should continue to function until the gas is depleted and the pressure is equal.

If you accidentally inhale or ingest gasoline, contact poison control right away.

Is Siphoning a good way to get rid of gas?

Siphoning is commonly employed to extract gas from a vehicle’s gas tank. This can be accomplished by using a hose or a bucket to suck the gas out of the pipe and into the gas tank.

It is probably the greatest way to drain liquid gasoline. However, when it comes to gas, some individuals have reservations. But the truth is that if you follow the appropriate procedure, this will work best with any type of fuel and any type of vehicle.

Also, the siphoned gas might be used to power a generator or replenish your car for an evacuation.


What is the best way to siphon gas out of a car?

The best way to siphon gas is to use a suction pump, so you can work safely without getting your hands dirty or exposing yourself to dangerous fumes. Once you have the siphon pump, connect the hose from the tank to the air tank.

Make sure to place the end where the liquid goes in and the other end where the liquid goes out in the correct position so you don’t just force air into the tank. When you’re ready, pump a few times to let the gas flow freely, or just flip the switch if you have a mechanical pump.

When done, lift the end of the pipe inside the tank to stop the flow. Once the hose is out of gas, you can remove the siphon fuel pump from the tank.

How do you siphon gas without a siphon?

Siphoning is the simplest and most efficient way to remove gas from a motor fuel tank. If you lack the appropriate right tools to siphon gas, you can drain the gas tank from beneath the automobile rather than through the gas cap.

This method of emptying gas, however, will not work on all automobile types. You’ll need to climb underneath your car and find the gas tank, which is a huge metal container on the same side of the car as your gas cap and where you put the petrol in.

To remove the plug, use a wrench or spanner to loosen the little bolt beneath the gasoline tank. Check that you have a large enough container under the plug to capture the gas.

Reinserting the bolt will be exceedingly difficult while the gas is draining out, so use this procedure only if you are willing to empty your gas tank completely.

Is there a safe way to siphon gas?

If you want to siphon gasoline in a safe way, you will need to have a siphon with a professional siphon tool.

Professional instruments are available to siphon gas from the fuel tank for maintenance needs. These instruments are almost always the safest option, as well as the most efficient.

Can I use a garden hose to siphon gas?

Yes, as long as safety measures are taken, a garden hose may be used for gasoline. It is a less expensive way that many people use.

A garden hose can be utilized in an emergency, such as when traveling in a group when one of the cars runs out of petrol. It is possible to siphon gas from the other automobile. Keep in mind that the gas hose should be at least six feet long and thick enough to accommodate the gas tank.

Video: How to Siphon Gas From a Car

If you want to know how to siphon gas the right way without getting in trouble, watch this video.


There are many valid situations where you would need to remove the gas from your vehicle. The idea itself is simple, but many people may not be familiar with the actual process and some of the challenges and risks posed by it.

In a survival emergency or when stranded on the highway with no gas station nearby, knowing how to siphon gas might save your life.

To produce air pressure, you can use a siphoning hose or a siphoning pump. If this does not work, the vehicle might be a later model with anti-siphon valves.

I hope this article has shown you that the actual procedure is not that difficult regardless of which way you select, although some methods are obviously more practical than others.

Thanks for reading! Please share your ideas and tips in the comments section. Here is how to reset steering assist is reduced drive with care.

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