Best Additive to Remove Water from Gas Tank

There are many additives on the market but only a few of them are truly effective. Searching for the right one may be challenging. That’s why we decided to suggest you the best additive to remove water from gas tank.

These additives are made to provide good efficiency to your engine and other car parts.

What Is the Best Additive to Remove Water from Gas Tank


If you search for the best additive to remove water from a gas tank, you can find many options. However, we present you with the best solutions in the list below.

  1. ISO-HEET Water Remover
  2. K-100 MG All-in-One Gasoline Fuel Treatment & Additive
  3. Red Line 60302 Fuel System Water Remover
K-100 MG All-in-One Gasoline Fuel Treatment &...
Red Line 60302 Fuel System Water Remover &...
Heet Iso-HEET Water Remover And Premium Fuel...
K-100 MG All-in-One Gasoline Fuel Treatment &...
Red Line 60302 Fuel System Water Remover &...
Heet Iso-HEET Water Remover And Premium Fuel...

Heet Iso-HEET Water Remover And Premium Fuel...
  • Selling brand of premium gas-line antifreeze
  • Absorbs 5 times more water than regular gas dryers

This additive is one of the most popular solutions on the market. It works very well with gas and diesel fuel. It absorbs up to 5 times more water when compared to other additives.

You can apply it in all weather conditions which makes it ideal for all-year-round use. It prevents corrosion and rust. This is possible because it removes the water in a fast manner and it leaves the engine protected.

It is also important to know how to use this additive.

You should open the bottle and pour the content into the tank. This can be done before or after you pour the fuel. One bottle can treat up to 20 gallons of fuel.

When you start using this additive for a car, you will notice a huge difference in the engine performance. Water in a gas tank can be very problematic, but with the right additive, the situation is better.

If we know that water sits in the gas tank bottom, we can use the right water remover like this one. It breaks large chunks of water into smaller particles. In this manner, the engine can burn off these particles.

With this solution, you can drive more easily, and the performance of the engine will be better.

It is recommended to use 1/2 ounce for every gallon of gas. By using this additive, you also provide an octane boost to the gas in your tank.

Red Line 60302 Fuel System Water Remover &...
  • Removes water from diesel or gasoline systems, treats up to 250 gallons
  • Significantly reduces the freezing point of water in the fuel system

This water remover works with gasoline and diesel systems. It removes water from the tank in a very effective manner. The compounds of this water remover are designated to provide excellent protection to your car.

In general, it works well in winter when the freezing temperatures affect the engine and gas tank. It reduces the freezing point when the water is inside the system.

By pouring this additive, you can be sure that water will be removed in a fast manner. It disperses equal amounts of water in fuel and it removes the large particles of water inside the system.

As you can see, there are water removers that work very well with the car systems. You can use these additives every time when you have problems with water in a gas tank.

How to Check for Water in Gas Tank?


Water in a gas tank could be a big problem. You may notice some of the most common symptoms of this condition.

There are symptoms like:

  • Engine hesitation – Engine hesitation is related to the behavior of your engine on the open road. When you want to reach the freeway speeds, your engine may show troubles and hesitations. This will be noticeable when you press the acceleration pedal, and sudden speed fluctuations will be there. This is because the water in a gas tank stops the engine to get enough fuel.
  • Power surges – Power surges happen when an abrupt increase or decrease in power appears in regular conditions on the road. You may notice the loss of power when driving. In this case, the engine will lose power because a vehicle is not made to compress water when you accelerate it. As a result, the engine will noticeably lose power and acceleration speed.
  • Corrosion – Corrosion is another sign that your car has water in a gas tank. When the water sits at the bottom of a tank, a rusty gas tank can be a result of this problem. This usually happens when the reservoir is almost empty. The pump will start to pull in the water that is on the bottom of the tank, and this will lead to rust formation.
  • Sputtering – Sputtering, poor performance of the engine, and volatile change of the speed can be a result of the water in a gas tank. The engine will behave erratically, and it will give you trouble on the road.

All of these symptoms may affect your car in many ways. You will be unable to start a car or accelerate adequately.

If you notice some of the mentioned symptoms, you can assume that you have water in a gas tank.

That is why you need to check for water in a gas tank and use some of the additives to remove water.

How to Prevent Water from Getting Into a Gas Tank

First of all, you should know the reasons that lead to the water in a gas tank. There are many reasons for this situation, and you will notice some of the most common ones.

Your pump station may have bad gas pumps and they can sell fuel that is contaminated with water. In this situation, you should avoid these stations and go to those that sell high-quality fuel. [1]

On the other hand, if a gas station crew did not replace the gas cap after refueling, this may lead to a problem. The excessive water will enter the gas tank and it will mix with the fuel.

A gas cap is very important and you should take care of it. If it is broken and it does not fit anymore, you should replace it with a new one. In this manner, you avoid problems with the gas tank.

If a tank is loosely sealed, the condensation during the temperature change will affect the fuel. The water will accumulate inside the tank and it will lead to engine problems.

You should be aware of all these aspects if you want to prevent water from getting into a gas tank.

At the same time, be careful of where you refuel your gas. Stay away from old gas stations and areas that are prone to floods. By doing this, you minimize the chances of buying the contaminated gas.

When you do a car wash, do not remove the gas cap because this will result in many problems. The excessive water can enter the gas system and the car will not be able to start.

Your top fuel pump is also important. Check the condition of the fuel pump regularly and replace the worn-out parts when needed.

By doing all these actions, you will protect your car in the long run.

How to Fix Water in a Gas Tank

You may need to consult a mechanic if your car has water in gas tank. However, there are several ways to fix this issue by yourself.

It is more than important to pour only the quality fuel into your gas tank. When you add a premium quality gas, this can fix minor issues with the water in a tank.

The high-quality fuel will mix together with the previous fuel amount, and the engine will burn off the excess water inside the system.

Another way to deal with this problem is to apply immediate displacement. You can siphon out the old gas and replace it with the high-octane solution. This will solve most of the issues. [2]

When there are large volumes of water, you may need to drain the gas tank completely. Then, you should let it dry entirely, and refill it with high-quality gas.

One of the best options to fix the water in a gas tank is by using additives. In this article, we mentioned the best additives that remove water from a gas tank.

You can use some of them and see the results. The additives are the best option because they dissolve the particles of water into smaller parts that the engine can burn off.

In this manner, they allow the engine to use the gas in an adequate way.

If none of these methods help, you may consult your mechanic for a solution. They will be there to examine the vehicle and suggest options.

Do not hesitate to call a mechanic that has experience with this problem. You will save time and money if you act fast and in a responsible manner.

Read Next: Can You Mix Premium and Regular Gas


As you can see, there are several ways to find out that your car has water in a gas tank. You may notice some issues with the engine and acceleration.

However, there are always good solutions to this problem. You can use the best additive to remove water from gas tank. By doing this, you ensure that the quality of the gas will be good in the long run.