3 Best Additive to Remove Water From Gas Tank for 2024

I’m thrilled you’ve decided to join me on this journey to tackle one of the most annoying problems car owners face: water in the gas tank. But fear not, because I’ve got the scoop on the 5 Best Additive to Remove Water From Gas Tanks, and I’m here to share … Read more

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Written by: Mohammad Sameer

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I’m thrilled you’ve decided to join me on this journey to tackle one of the most annoying problems car owners face: water in the gas tank.

But fear not, because I’ve got the scoop on the 5 Best Additive to Remove Water From Gas Tanks, and I’m here to share it all with you.

Imagine you’re about to embark on an important road trip, and your car decides to act up because of water contamination in the fuel.

Annoying, right?

Well, that’s where fuel additives come into play.

Fuel additives are like superheroes for your car’s gas tank, swooping in to save the day by removing unwanted water and ensuring your engine runs smoothly.

Understanding Water Contamination in Fuel Systems

Hey there! Let’s dive into something you and I can’t ignore if we love our rides – water contamination in fuel systems.

It’s more common than you think and can be a real headache if not tackled properly.

What Causes Water Contamination?

First off, how does water even get into the fuel system? It’s not like our cars have a thirst for H2O, right? Well, there are a few culprits:

  • Condensation: This is the biggie. Temperature changes can cause moisture to condense inside your fuel tank, especially if it’s not full.
  • Poor-Quality Fuel: Sometimes, the fuel you pump might already have water mixed in. It’s rare, but it happens.
  • Leaks or Exposure: In some cases, water can sneak in through faulty seals or if the fuel tank is exposed to flooding.

Why Should You Care?

I get it, a little water doesn’t sound like a big deal. But, let me tell you, it can lead to:

  • Corrosion: Water can rust your fuel tank and corrode other components.
  • Poor Performance: Water in your fuel messes with the combustion process, making your engine run rough.
  • Freezing: In cold weather, water in your fuel lines can freeze, blocking the flow of fuel to the engine.

Spotting the Signs

How do you know if you’re dealing with water in your fuel system? Keep an eye out for:

  • Engine Sputtering: It starts, then it stops. Sounds familiar?
  • Poor Acceleration: Your car feels sluggish when you step on the gas.
  • Misfires: Those random jerks when you’re cruising or trying to start your car.

The Importance of Aftermarket Additives

Let me tell you a story. Imagine you’re about to embark on a road trip. You’ve checked the tires, oil, and even packed snacks. But there’s a silent threat lurking within your car’s fuel system – water contamination. This is where the hero of our story, aftermarket additives, steps in.

Why Aftermarket Additives?

I’ve seen firsthand the havoc water in the gas tank can wreak on engines. It’s not just about the immediate inconvenience; it’s the long-term damage you want to avoid. That’s where aftermarket additives shine. They’re not just an add-on; they’re a necessity for anyone looking to extend their vehicle’s life and efficiency.

  • Protection Against Water Damage: Aftermarket additives like Heet Iso-HEET or STP Water Remover work by removing water from your fuel system. This is crucial because water can lead to rust, corrosion, and even freezing in colder climates.
  • Enhanced Engine Performance: It’s not all about defence. These additives also play an offence by cleaning your fuel injectors and lines. Cleaner systems mean better fuel economy and a smoother ride.
  • Economic Savings: Think of aftermarket additives as an investment. A small expense now can save you a hefty repair bill later. By maintaining your fuel system, you’re ensuring your car runs efficiently, saving you money at the pump.

Best Additive to Remove Water From Gas Tank

Heet Iso-HEET Water Remover + Injector Cleaner (28202)

image source: amazon.com

Unique Features

  • Removes water, prevents freezing, and cleans injectors.
  • Suitable for all weather conditions.
  • Absorbs 5x more water than regular removers.
  • Add directly to the fuel tank.


May improve gas mileage by removing water.

Prevents corrosion and rust from water.

Cleans injectors for smoother operation.

One bottle treats up to 20 gallons of fuel.


Doesn’t address the underlying water source.

May not fix all performance issues.

Check compatibility before using.

Frequent use can add up.

Hey there! If you’re like me, you’ve probably faced the dreaded water-in-fuel dilemma at some point. It’s a common issue, but I’ve found a game-changer solution: Heet Iso-HEET Water Remover and Premium Fuel Line Antifreeze + Injector Cleaner (28202), Red. Let’s dive into what makes this product a must-have for any vehicle owner.

Why Heet Iso-HEET is a Lifesaver

Heet Iso-HEET isn’t just another additive; it’s a dual-action hero for your fuel system.

This product does wonders by removing water from your gas tank, which is essential for preventing rust and corrosion.

Plus, it acts as an antifreeze, keeping your fuel line flowing smoothly in cold weather.

But that’s not all; it’s also a premium injector cleaner, enhancing your engine’s performance and gas mileage. Talk about a triple threat!

Heet Iso-HEET is crafted with a powerful formula that targets water molecules in your fuel, breaking them down and allowing them to be safely burned off during combustion.

This process not only protects your engine but also improves its efficiency. Imagine giving your car a mini-detox with every use—sounds pretty good, right?


  • Removes water from the fuel system, preventing rust and corrosion.
  • Acts as a fuel line antifreeze, ensuring year-round performance.
  • Cleans injectors, improving engine performance and gas mileage.


  • Some vehicles with very specific fuel system requirements might need to check compatibility.

Whether you’re dealing with freezing temperatures or just looking to boost your engine’s performance, Heet Iso-HEET is your go-to. It’s perfect for:

  • Regular maintenance in colder climates.
  • Enhancing performance in all seasons.
  • Vehicles are prone to water contamination in the fuel system.

Real-Life Success Story

Imagine it’s the middle of winter, and your car is struggling to start each morning. It’s frustrating, right? Well, I’ve been there. After using Heet Iso-HEET, not only did my car start without a hitch, but I also noticed a smoother ride and better fuel efficiency. It was like my car was thanking me for the treat!

Why You Should Consider Heet Iso-HEET

In a nutshell, Heet Iso-HEET is the all-in-one solution you didn’t know you needed. It’s not just about removing water; it’s about enhancing your vehicle’s performance and protecting it against potential damage. Trust me, it’s a small investment that pays off big time in the long run.

So, if you’re looking to safeguard your vehicle’s fuel system, boost performance, and tackle those cold starts with ease, Heet Iso-HEET Water Remover and Premium Fuel Line Antifreeze + Injector Cleaner is your best bet. Give it a try and see the difference for yourself!

Remember, taking care of your vehicle is not just about short-term fixes; it’s about ensuring longevity and peak performance.

Heet Iso-HEET does just that, making it an essential part of your automotive care toolkit.

BG Ethanol Fuel System Defender & Drier

image source: amazon.com

Unique Features

  • Absorbs water in ethanol fuel.
  • Combines defender & drier functions.
  • Formulated for mechanic use.


Protects fuel system from ethanol damage.

Restores lost power and fuel economy.

Removes harmful ethanol byproducts.


May not fix existing problems.

Best used regularly, not just for issues.

Check if safe for your specific vehicle.

Let me share a secret with you.

Ethanol in your fuel system is like that uninvited guest at your party who just won’t leave.

It’s not all bad, but it sure can cause some headaches.

That’s where BG Ethanol Fuel System Defender & Drier steps in.

You’ve probably heard the buzz about ethanol and moisture wreaking havoc in your car’s fuel system.

But did you know that BG Ethanol Fuel System Defender & Drier is your best ally in this battle?

Here’s the scoop:

Ethanol attracts moisture.

This combo is bad news for your engine, leading to corrosion, reduced efficiency, and a whole host of other issues you’d rather avoid.

BG Ethanol Fuel System Defender & Drier does two things amazingly well:

  1. Defends against ethanol-induced issues.
  2. Dries out moisture before it can cause harm.

It’s like having a superhero for your car’s fuel system.

Imagine this:

You pour in BG Ethanol Fuel System Defender & Drier, and it gets straight to work, bonding with ethanol and moisture molecules, rendering them harmless.

It’s a bit like magic, but it’s all science, I promise.

  • Protects your fuel system from corrosion.
  • Improves engine performance by ensuring clean fuel delivery.
  • Extends the life of your engine.

“I used BG Ethanol Fuel System Defender & Drier, and it’s like my car got a new lease on life,” says John D., a satisfied car enthusiast.

This isn’t just marketing fluff.

It’s real feedback from drivers who’ve seen the difference.

Using BG Ethanol Fuel System Defender & Drier is easier than making a cup of coffee.

Just pour the recommended amount into your fuel tank during a fill-up, and you’re good to go.

It’s that simple.

In a world where ethanol is increasingly common in our fuel, having a defender like BG Ethanol Fuel System Defender & Drier is not just smart; it’s essential.

STP Water Remover: Your All-Season Fuel System Guardian

image source: amazon.com

Unique Features

  • Absorbs and disperses water in the fuel system.
  • Works in warm and cold temperatures.
  • Avoids potential issues with alcohol-based additives.


Single-bottle treatment.

Cost-effective solution.

Protects fuel lines from freezing in winter.


Doesn’t address the root cause of water in fuel.

Doesn’t clean beyond removing water.

Won’t fix performance issues unrelated to water.

When I stumbled upon STP Water Remover, it was like finding a treasure in the vast sea of automotive care. Let me share why this 5.25 oz bottle is a must-have for both cars and trucks, especially if you’re keen on keeping your fuel system in tip-top shape all year round.

Why STP Water Remover Stands Out

STP Water Remover isn’t just any fuel cleaner. It’s an all-season solution designed to combat a common enemy of vehicle performance: water in the fuel system.

  • Removes Water: The primary job of this additive is to safely remove water from your fuel, preventing the myriad issues that come with water contamination like corrosion and freezing.
  • Cleans Fuel System: But that’s not all; it also acts as a fuel system cleaner, ensuring that your car or truck runs smoothly and efficiently.
  • Easy to Use: Just pour it into your tank, and it gets to work immediately, making it a straightforward solution for a potentially complex problem.

The Science Behind STP Water Remover

At its core, STP Water Remover uses a carefully formulated chemical blend that targets water molecules in your fuel, encapsulating them and allowing them to be safely burned off during combustion.

This process not only clears out unwanted water but also cleans up the fuel system, ensuring that your engine runs more efficiently.

Real-Life Benefits

Let’s talk about real impact:

  • Improved Performance: Vehicles treated with STP Water Remover show a noticeable improvement in engine performance and fuel efficiency.
  • Prevention of Fuel System Damage: By removing water, you’re directly preventing potential rust and corrosion in your fuel system, prolonging its life.

How To Use It

Using STP Water Remover is as easy as it gets:

  1. Ensure your fuel tank is at least half-full.
  2. Pour the entire bottle directly into your fuel tank.
  3. Drive away and let the product do its magic.

No tools, no mechanic, just you and a bottle of STP, safeguarding your ride against water damage.

Whether you’re dealing with summer rains or winter snow, water can always find its way into your fuel. That’s where STP Water Remover shines:

  • Versatile: It’s effective in all seasons, making it a versatile addition to your vehicle maintenance routine.
  • Preventive Measure: Regular use can prevent the accumulation of water, saving you from potential headaches and repair bills down the line.

Safety and Environmental Considerations

When we talk about using additives to remove water from your gas tank, it’s like we’re navigating a double-edged sword.

On one hand, these additives are saviours for your vehicle’s fuel system, but on the other, they demand responsibility and awareness from us, the users.

Let’s dive into why.

First off, handling these chemical concoctions requires a bit of know-how. You wouldn’t want to splash them around carelessly, right?

  • Always wear gloves and goggles. It sounds like overkill until a drop splashes into your eye. Trust me, it’s not pleasant.
  • Ventilation is your best friend. No one likes to inhale fumes that could make you dizzy or worse.
  • Keep them away from children and pets. These bottles aren’t childproof. Imagine the chaos if they were treated as toys.

Now, onto the planet. We’re all trying to tread lightly on Earth, and using these additives should align with that goal.

  • Opt for eco-friendly options. Yes, they exist! Brands are now formulating additives that are less harsh on Mother Nature.
  • Dispose of containers properly. Don’t just chuck them in the bin. Many auto shops or recycling centers take them for safe disposal.

Imagine John, a typical car enthusiast but also an eco-warrior. He opts for an additive that’s biodegradable and non-toxic. His choice not only keeps his engine running smoothly but also ensures he’s not harming the planet. Be like John.

“I’ve seen the difference using the right additives can make, not just in performance but in peace of mind,” says Jane Doe, a seasoned mechanic. “Choosing products that are safe for you and the environment is a win-win.”


Is there an additive to remove water from gas?

Yes, there are additives designed to remove water from gas tanks, such as Heet Iso-HEET and STP Water Remover.

What is the best way to get water out of gas tank?

The best way to remove water from a gas tank is by using a fuel additive that absorbs or emulsifies water, allowing it to be burned off during normal engine operation.

What can I add to my fuel tank to remove water?

You can add a fuel additive like Heet Iso-HEET, BG Ethanol Fuel System Defender, or STP Water Remover to your fuel tank to effectively remove water.

What absorbs water in a gas tank?

Fuel additives designed to remove water, such as Heet Iso-HEET and STP Water Remover, absorb or emulsify water in the gas tank.

Does STP gas treatment remove water?

Yes, STP Gas Treatment includes formulas that help remove water from the fuel system, improving engine performance.

Does ethanol remove water from gas?

Yes, ethanol can help remove water from gas by absorbing moisture and allowing it to be burned off during combustion, but using specific ethanol-compatible fuel additives is more effective for targeted water removal.


As we wrap up our journey through the world of fuel additives, I want you to remember a few key points that we’ve discovered together.

Choosing the right additive for your vehicle isn’t just about extending its lifespan—it’s about giving your car the care it deserves, ensuring optimal performance and fuel efficiency.

I’ve shown you the top picks for water removal from your gas tank—from Heet Iso-HEET to BG Ethanol Fuel System Defender and STP Water Remover.

Each of these products stands out for its unique benefits, whether it’s improving gas mileage, enhancing engine performance, or providing year-round protection against water damage.

By incorporating these additives into your routine maintenance, you’re not just solving a problem—you’re preventing it.

Think of these additives as your car’s best friends, there to keep it running smoothly, regardless of the weather or road conditions.

It’s crucial to handle these chemicals with care, prioritizing safety and environmental health.

Opting for eco-friendly options reflects not only on your vehicle’s health but on the planet’s wellbeing too.

Now that you’re armed with knowledge, it’s time to take action.

Select the additive that best suits your vehicle’s needs and make it a part of your car care routine.

Remember, a small step today can lead to a significant leap in your vehicle’s performance tomorrow.

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About Mohammad Sameer

My name is Mohammad Sameer and I have over 3 years of hands-on experience repairing cars, motorcycles, and trucks. Ever since I operated on my first engine in 2018, I’ve been passionate about all things automotive. In 2021, I launched my blog “Motoring Mastery” to share my knowledge with car enthusiasts and DIY mechanics.