5 Best Additives to Remove Water From Your Gas Tank – Say Goodbye to Fuel Contamination

Have you ever wondered if there are reliable additives out there that can effectively remove water from your gas tank?

The presence of water in your fuel system can lead to various issues, but fret not, as we have curated a list of the top 5 additives that can help you tackle this problem efficiently.

From Hot Shots Secret Gasoline Extreme Fuel System Cleaner to Star Brite Star Tron Enzyme Fuel Treatment, these products have proven track records in combating fuel contamination.

But which one will best suit your needs?

Hot Shots Secret Gasoline Extreme Fuel System Cleaner, 12oz

For those seeking a solution to enhance fuel economy and restore engine performance, the Hot Shots Secret Gasoline Extreme Fuel System Cleaner, 12oz, is a top choice. This fuel additive by Hot Shots Secret cleans, lubricates, and protects gasoline fuel systems and engines. By dissolving deposits and varnish, it can boost fuel economy by up to 7.9% and effectively restore engine performance. Say goodbye to issues like poor fuel economy, rough idling, and loss of engine power with this powerful additive.

Manufactured by Lubrication Specialties, Inc., this 12-ounce product has garnered positive reviews from customers, highlighting its ability to improve gas mileage and overall engine functionality. Get ready to experience smoother drives and increased efficiency with Hot Shots Secret Gasoline Extreme Fuel System Cleaner, 12oz.

Best For: Those looking to improve fuel economy and restore engine performance in their gasoline fuel systems and engines.


  • Boosts fuel economy by up to 7.9%.
  • Restores engine performance by dissolving deposits and varnish.
  • Cleans, lubricates, and protects fuel systems effectively.


  • Some users have reported issues with packaging.

STP Multi-Purpose Motor Treatment and Fuel Stabilizer (16 Oz)

If you're looking to efficiently remove water from your gas tank and enhance engine performance, consider trying the STP Multi-Purpose Motor Treatment and Fuel Stabilizer (16 Oz). This product is designed to stabilize fuel in engines in storage, fight rust buildup, prevent oxidative degradation, combat tough cold starts, and remove water to prevent fuel line freeze.

For engines in use, it cleans engine deposits, fights friction, cleans fuel injectors and intake valves, protects against viscosity buildup and crankcase sludge, and provides upper cylinder lubrication. It works with gas, diesel, two-stroke, and four-stroke engines, helping to restore lost horsepower and performance. Users have reported improvements in engine smoothness, idle, and even a slight increase in miles per gallon. Give it a try for a cost-effective alternative to other products like Sea Foam.

Best For: Those looking for a cost-effective solution to enhance engine performance and remove water from their gas tank.


  • Cost-effective alternative to other products like Sea Foam
  • Helps improve engine smoothness, idle, and slight increase in MPG
  • Works with a variety of engines, including gas, diesel, two-stroke, and four-stroke


  • May not be as widely recognized as some other brands

STP Gas Treatment, Fuel Intake System Cleaner (Pack of 12)

Ideal for maintaining peak engine performance, the STP Gas Treatment, Fuel Intake System Cleaner (Pack of 12) is a trusted solution for improving gasoline quality and preventing harmful deposits. This 5.25 fl oz bottle of STP Gas Treatment not only enhances fuel efficiency but also helps prevent harmful carbon, gum, and varnish deposits. The formulation includes jet fuel as a carrier of active ingredients, ensuring thorough cleaning of the fuel intake system. Regular use during tank refills can also prevent fuel line freezes, making it an essential addition to your vehicle maintenance routine. Customers have reported improved engine performance, smoother pick-up, and increased gas mileage by 35-45 miles per tank, making this product a great value for the money.

Best For: Daily commuters looking to maintain peak engine performance and improve gas mileage.


  • Enhances fuel efficiency and prevents harmful deposits
  • Improves engine performance and promotes smoother pick-up
  • Helps prevent fuel line freezes and maintains fuel quality


  • May not provide significant savings for all users

Star Brite Star Tron Enzyme Fuel Treatment (16 Fl Oz)

When dealing with water issues in your gas tank, consider the Star Brite Star Tron Enzyme Fuel Treatment (16 Fl Oz) for its ability to rejuvenate old gasoline and prevent ethanol-related problems. This treatment treats up to 96 gallons of gas, maximizing fuel economy and unleashing your engine's full potential.

Its advanced enzyme technology ensures easy engine start and smooth running for all engines and fuel types. By removing and preventing build-up, it also prevents phase separation and reduces smoke and emissions. Easy to use, simply add the recommended dosage with each refill, and it can even be mixed with other fuel additives without harm.

With an average rating of 4.7 out of 5 stars from 743 ratings, this USA-made product is a top choice in fuel additives.

Best For: Those looking to rejuvenate old gasoline, prevent ethanol-related problems, and maximize fuel economy in their vehicles and equipment.


  • Treats up to 96 gallons of gas
  • Easy to use with recommended dosages
  • Can be mixed with other fuel additives


  • May not be as effective for extremely old or degraded gasoline

Liqui Moly Pro-Line Gasoline System Cleaner, 500 ml

For those seeking to improve fuel system performance and maintain engine efficiency, the Liqui Moly Pro-Line Gasoline System Cleaner, 500 ml, offers a reliable solution. This German-made cleaner is a potent blend of additives designed to clean and upkeep fuel systems in both injected and carbureted gasoline engines.

It works by effectively cleaning injectors and the combustion chamber, restoring proper fuel atomization, and ultimately enhancing engine efficiency. Users have reported noticeable improvements in acceleration, engine sound, and gas consumption after using this cleaner.

Whether you're looking for a problem solver or aiming to prevent maintenance issues, the Liqui Moly Pro-Line Gasoline System Cleaner is a recommended choice. Simply add it to an empty tank before filling up for your next long trip or oil change to experience its benefits.

Factors to Consider When Choosing Additives to Remove Water From Gas Tank

When choosing additives to remove water from your gas tank, consider factors like:

  • Additive selection tips
  • Water removal methods
  • Tank cleaning techniques
  • Preventive maintenance measures
  • Product application guidelines

Making the right choice based on these factors can help effectively address water contamination issues in your fuel system. Take these considerations into account for optimal results in maintaining your vehicle's performance.

Additive Selection Tips

To select the best additive for removing water from your gas tank, focus on finding a product specifically formulated to address water contamination and enhance fuel system functionality. Look for additives designed to remove water effectively to prevent engine damage and maintain efficiency.

Consider products containing emulsifiers that mix water with fuel for safe combustion and removal. Opt for additives compatible with various fuel types and engine systems to ensure optimal performance.

Check for additives that prevent corrosion and rust formation in the fuel tank due to water contamination. Prioritize additives that offer a preventive approach to water contamination issues to avoid costly repairs and maintenance. Choose wisely to keep your fuel system running smoothly.

Water Removal Methods

Consider the various water removal methods available, such as using water-absorbing additives or specialized filters, when selecting additives to remove water from your gas tank.

Water-absorbing additives like ethanol or isopropyl alcohol can help eliminate water from the fuel system.

Additionally, utilizing specialized water separating filters or fuel filter/water separators can physically separate water from the fuel before it enters the engine, preventing damage and maintaining efficiency.

Regularly draining water from the fuel tank's water drain valve is a common practice to prevent water accumulation.

Fuel additives that emulsify water into a combustible solution can also prevent water-related issues and enhance engine performance.

For a thorough water removal process, professional fuel tank cleaning services are available to ensure optimal engine operation and longevity.

Tank Cleaning Techniques

For effective removal of water from your gas tank, consider the additives that efficiently target water contamination. Some additives are formulated to emulsify water in the fuel, enabling it to be safely burned off during engine operation. Tank cleaning techniques often involve using water-absorbing additives or fuel treatments. Fuel stabilizers with water-dispersing properties can help prevent water accumulation in the tank.

Preventive Maintenance Measures

Inspecting and maintaining your fuel tank regularly is crucial for preventing water accumulation and avoiding potential corrosion and fuel system issues. To choose the right additives for water removal, consider factors such as the specific design of the additives to absorb or disperse water effectively.

Keeping your fuel tank filled helps reduce condensation, which can introduce water into the tank. Proper storage conditions for your vehicle are essential to minimize exposure to environmental factors that contribute to water contamination in the fuel.

Following manufacturer recommendations for fuel system maintenance and using additives preventatively can address water-related issues in the gas tank. By implementing these preventive measures, you can ensure a cleaner and more efficient fuel system.

Product Application Guidelines

To effectively remove water from your gas tank, ensure you follow the manufacturer's recommended dosage and application instructions for the additive.

It's crucial to check the compatibility of the additive with your vehicle's fuel type and engine to prevent any potential issues.

Additionally, consider the recommended frequency of use by the manufacturer to prevent water accumulation and maintain optimal performance.

Verify if the additive is safe for vehicles with catalytic converters or other specific engine components to avoid damage.

Prioritize additives that not only remove water but also prevent future buildup to sustain engine efficiency.

Frequently Asked Questions

Can These Additives Be Used in Diesel Fuel Tanks as Well?

Yes, these additives can be used in diesel fuel tanks as well. They are designed to help remove water from fuel systems, preventing contamination. Adding them regularly can help maintain the efficiency of your diesel engine.

Are These Additives Safe to Use in Vehicles With Catalytic Converters?

Yes, these additives are safe to use in vehicles with catalytic converters. They are designed to remove water from your gas tank without harming your vehicle's emissions system. So go ahead and use them worry-free!

How Often Should These Additives Be Used to Effectively Remove Water From the Gas Tank?

To effectively remove water from your gas tank, use additives as directed by the manufacturer. Typically, it's recommended to use them every few thousand miles or during each oil change for best results in preventing fuel contamination.

Will These Additives Also Help Improve Fuel Efficiency in Addition to Removing Water Contamination?

Yes, these additives can enhance fuel efficiency by removing water from your gas tank, leading to smoother engine performance. Regular use ensures optimal results. Say goodbye to fuel contamination and hello to improved gas mileage.

Are There Any Specific Storage Instructions for These Additives to Maintain Their Effectiveness?

To maintain effectiveness, store these additives in a cool, dry place away from direct sunlight or extreme temperatures. Following storage instructions ensures they work efficiently when added to your gas tank. Remember to keep them sealed tightly.


In conclusion, using additives to remove water from your gas tank is a simple and effective way to prevent fuel contamination and maintain the performance of your vehicle.

With products like Hot Shots Secret Gasoline Extreme Fuel System Cleaner and STP Gas Treatment, you can easily eliminate water buildup and keep your engine running smoothly.

Choose the right additive for your needs and say goodbye to water-related issues in your gas tank.