LAST UPDATED: January 11, 2019

The Best Fuel Stabilizers (Review) in 2021

Best Choice sta-bil 22214 fuel stabilizer STA-BIL 22214 Fuel Stabilizer
Premium Pick sentry new technology fuel stabilizer Sentry New Technology Fuel Stabilizer
Best Value Yamaha ACC-FSTAB-PL-32 Fuel Stabilizer & Conditioner Yamaha ACC-FSTAB-PL-32 Fuel Stabilizer & Conditioner

Struggling with stale gas sitting in your vehicle? Want to prevent the engine from corroding? If so, you need a fuel stabilizer. When the fuel in your engine sits for too long, the volatile components present in its composition get oxidized and evaporate. When there is an oxidation process, all new compounds created tend to cause severe damage to your engine and its operations. Finding a solution to the degradation of your fuel is highly essential, which is why we recommend you purchase the best fuel stabilizer.

Fuel stabilizers are manufactured to act as chemical compounds that ensure that your fuel is clean and stays fresh for a longer period of time.

These stabilizers prevent damage in your engine since they keep your fuel safe even after years of storage. However, with the ever-growing number of fuel stabilizers on the market, it can be very tough to know which one works best for your vehicle. So, to help you streamline your purchase, the best fuel stabilizers on the market are listed below. All products have been provided to help you identify the best one that suits you and your engine’s needs.

The Best Fuel Stabilizer

For quick, easy starts after storage, the STA-BIL Storage Fuel stabilizer is one of the best fuel stabilizers to keep your fuel fresh. Not only does it cleanse your fuel injectors and carburettors, but it is also responsible for the removal of water to prevent corrosion. It helps prolong the lifespan of any engine and protects your engine from varnish, gum, corrosion and rust while eliminating the need for you to drain your fuel. The STA-BIL 22214 is ideal for both two and four-cycle engines and comes in a 16-ounce pour bottle that treats up to 40 gallons of fuel. It is an excellent stabilizer and one of the best around.

This fuel treatment is part of the Gold Eagle Company, a Chicago-based private company that is one of the pioneers in the manufacturing and sales of aftermarket additives and fluids as well as branded engine maintenance and performance chemicals. With over a 100 branded products sold worldwide, this company supplies products to over 400 different companies and retail marketers.

Key Features
  • Provides a quick, easy start
  • Prevents build-up of gum
  • Effective with all gasoline and Ethanol blends
  • Eliminates the requirement of fuel draining
Specification
  • Brand Sta-Bil
  • Model 22214
  • Weight 1.85 pounds

The Star Tron Enzyme Fuel Concentrate is manufactured with a unique enzyme technology and with multifunctional fuel treatment features that enable it to prevent the occurrence of ethanol fuel issues and phase separation. It is one of the best stabilizer options for both seasonal storage and everyday use as it ensures smooth starting and running of your engine, even when your vehicle has not been in operation for a long time.

The Star Tron Concentrate stabilises your fuel for up to two years and is also ideal for the rejuvenation of your old, sub-spec fuels. This product reduces emissions, which ultimately helps to improve fuel economy. Other benefits include its ability to clean the injectors and valves of carbon deposits, varnish and gums, increase fuel efficiency, and reduce emissions.

Key Features
  • Stabilises fuel for up to 2 years
  • For everyday use and seasonal storage
  • Reduces emissions
  • Improves fuel economy
Specification
  • Brand Star Brite
  • Model 093032SS
  • Weight 1.9 pounds

The Briggs & Stratton Fuel Treatment is a fuel stabilizer designed to provide engines with triple antioxidant protection by using its advanced concentrated formula created after intense research. The method developed by this brand is an authentic creation, and it is one that promises to preserve your fuel for up to three years without it going stale. Available in a 16 oz bottle, the Briggs & Stratton treatment comes with the ability of treating up to 80 gallons of fuel.

The five-in-one advanced formula is a highly effective fuel stabilizer that seeks to safeguard your engine against many common ethanol problems. Not only does this formula maintain your fuel’s stability for up to three years, but it also protects your engine against the corrosive effects of ethanol which can damage your engine parts. It is a suitable choice for all two and four-cycle gasoline engines.

Key Features
  • Provides triple antioxidant protection
  • 16-ounce bottle
  • For all 2 and four-cycle gasoline engines
  • Treats 80 gallons
Specification
  • Brand Briggs & Stratton
  • Model 100119A
  • Weight 1 pounds

The PRI fuel stabilizer for gasoline engines is an effective stabilizer for fuel storage. No matter why you need it, it is formulated to effectively serve your vehicle’s engine. It helps deliver an uninterrupted operation by ensuring a comfortable, smooth and quick engine startup. It is also ideal for all kinds of engines and equipment, no matter the size.

The PRI gasoline stabilizer, though used by many drivers of regular cars, is also popular in a hospital setting. All of its features make it a good candidate for healthcare facilities that use stabilizers in their backup power source. It kicks in to keep machines operating to prevent damage in the event of a power outage or any other critical issue. With a capacity of 32 ounces, the PRI stabilizer treats up to 512 gallons of gasoline and can preserve fuel for a very long time.

Key Features
  • Suitable for smaller engines and equipment.
  • Comes in different sizes
  • 128 ounces bottle
  • Treats up to 2040 gallons of gasoline
Specification
  • Brand Power Research Inc
  • Model 4333461315
  • Weight 1.7 pounds

The Max-Clean fuel system from Royal Purple is a formulated with proprietary technology that seeks to restore your fuel economy, reduce both tailpipe emissions and engine build-up, as well as cleanse your injectors. It is a state-of-the-art fuel system designed by  professionals in the field to target both the combustion chamber and intake system. It is a highly effective product that works on your entire engine while it’s on the road.

No matter the kind of engine, be it naturally aspirated, new, old, turbocharged, supercharged, gasoline, or diesel, this product has been tested on various engine makes and models to ensure that you receive nothing but the best in performance. Information deduced from the countless experiments prove that the Royal Purple Fuel System can increase horsepower at an average of 2.6 percent and improve fuel economy by 3.2 percent.

Key Features
  • Prevents rough idle, hesitation and stalling
  • Improves fuel economy by 3.2 per cent
  • Increases horsepower by of 2.6 per cent
  • 3-in-1 fuel additive
Specification
  • Brand Royal Purple
  • Model 11722
  • Weight 1.25 pounds

The STA-BIL 22275 is a fuel stabilizer that works best as a diesel additive for your engine. It promises to deliver the ultimate level of performance and is also an affordable choice. The 22275 features vapour technology, which protects the fuel system above and below the fuel line as well as the engine itself.

It enhances the overall performance of your engine by keeping your fuel fresh, and this provides drivers with a quick and easy engine start. The ability of thisfuel stabil izer to remove excess water from your engine helps prevent the occurrence of corrosion, while helping to avoid all ethanol-related damage that usually occurs in small engines and vehicles. Keep your fuel fresh during storage with the 22275 fuel stabilizer and experience an improved in-season performance after your fuel system is cleansed.

Key Features
  • Treats up to 10 gallons of fuel
  • Compatible with all biodiesel and ulsd blends
  • Helps prevent corrosion damage
  • Maintains clean fuel system
Specification
  • Brand Sta-Bil
  • Model 22275
  • Weight 1.8 pounds

Lucas, as many people are aware, is one of the top manufacturers of high-quality oil stabilizers. Produced in the US, the Luca 10001 is a heavy-duty stabilizer that increases the lifespan of oil by 50 percent. This product is one of the few to actually increase miles and power per gallon and also helps to reduce oil consumption. It is easy to use and can be applied in both two and four-cycle engines for optimum performance.

The 10001 heavy-duty gas stabilizer delivers a smooth and easy start by eliminating dry starts, and this ultimately enhances the performance of your engine even if it has not been in operation for an extended period of time. One great feature this fuel stabilizer possesses is its capacity and usage. A single ounce can treat up to one gallon of fuel; thus, this cost-effective product will keep the engine of your car, motorcycle, or power tool up and running.

Key Features
  • Made in the USA
  • Reduces oil consumption
  • Eliminates dry starts
  • Increases oil life by 50 per cent longer
Specification
  • Brand Lucas
  • Model 10001
  • Weight 14.1 ounces

The popular and affordable Yamaha ACC-FSTAB-PL-32 fuel stabilizer offers outstanding performance and also helps you save on fuel. Made using state-of-the-art technology, this fuel stabilizer is a three-in-one formula created by professionals after countless experiments to protect your engine and deliver performance, safety and economy. It is one of the top stabilizers on the market, and it can be used easily with a lawn mower, computerised vehicle, and a turbocharged vehicle.

The Yamaha fuel stabilizer is a genuine product that helps prevent varnish and gum build up. It also enhances the combustion of your fuel by keeping your engine clean. It is responsible for the removal of moisture from the fuel to prevent the components of your fuel system from corroding.

Key Features
  • Protects your engine
  • Three in one formula
  • Treats up to 5 gallons of gasoline
  • An alcohol-free formula
Specification
  • Brand Yamaha
  • Model ACC-FSTAB-PL-32
  • Weight 1.9 pounds

The Sentry Fuel Treatment is a maximum stabilizer and a popular product designed for use on ethanol blends. Because of its ability to turn the damaging elements in fuel into beneficial components, this stabilizer is an excellent product for marine applications. It is a highly effective fuel treatment made of unique hydrocarbon technology, which helps prevent rust or corrosion in any engine or fuel system.

This fuel stabilizer contains elements that do not support microbial growth, but it increases lubrication and boosts power. When Sentry is burned in the chamber of combustion, there is a reduction in the carbon deposits on injectors, valves and pistons, which in turn increases mileage, reduces smoke, and eliminates fuel water problems. It can be used comfortably in lawn mowers, boats and more. Once the moisture content has been encapsulated, water is transformed into a flammable liquid. It is a great fuel stabilizer overall.

Key Features
  • All Grades and 2 Stroke Compatible
  • Eliminates Fuel/Water Problems
  • Cleans Fuel Injectors
  • Maximum Stabilizer
Specification
  • Brand Sentry Fuel Treatments
  • Model GTPQRT32

The Maxima Fuel Storage Stabilizer also acts as a corrosion inhibitor for your engine by protecting your entire system. It has been formulated to prolong the lifespan of your engine by preventing the formation of lacquers and varnish often caused by fuel degradation. The Maxima fuel stabilizer is a product unlike many others as it offers complete protection from the harmful effects moisture and ethanol pose when contained in your fuel system.

This fuels stabilizer is compatible with cars, trucks, motorcycles, snowmobiles, and ATVs, as well as outdoor equipment. To treat up to 2.5 gallons of your fuel, you need one bottle of the Maxima fuel stabilizer. Enjoy a clean engine after only five minutes of application.

Key Features
  • Doubles as a corrosion inhibitor and a fuel stabilizer
  • Prevents the formation of varnish
  • Can treat 1.0 – 2.5 gallons of fuel
  • Fights corrosion within the entire fuel system
Specification
  • Brand Maxima
  • Model 89901
  • Weight 1.88 pounds

Best Fuel Stabilizer Buying Guide & FAQ

Things to Consider When Buying a Fuel Stabilizer

Choosing the best product from all the available fuel stabilizer brands can prove to be a challenging process. Every detail, even the smallest, must be given special attention, since selecting the best stabilizer is very confusing. Below, we provide you with a few things to keep in mind, to check how effective a product is before you decide to purchase.

Ease of Use: the selected fuel stabilizer should be easy to use and since it helps prolong the lifespan of our fuel, storing it for more extended periods must be possible as well. That being said, we as users must ensure that, before any engine is started, our stabilizer is mixed correctly in the oil smoothly and quickly.

Compatibility: the most critical factor is how compatible your fuel stabilizer is with your engine or vehicle. It is better to opt for a stabilizer that works well with most engines and cars, to be on a safer side.

Price: with everyone having a different budget, the cost of stabilizers is the prime deciding factor when selecting a product. In most cases, people tend to go in for a more economical stabilizer after realising that their preferred product is slightly costly. Read all features of various stabilizers, and if some of them have almost similar elements, go for the product that offers you value for your money.

Brand: you may think it doesn’t matter, but the brand name of any product in the world is extremely important. It is possible to make your product list based on the popularity of many brands, as brands tend to hold a lot of significance. The much older brands come with the experience of producing fuel stabilizers thus, opting for e reputable brand can help you save some money and still receive exceptional value.

Reviews: learning from the experience of other people helps many of us save up our money when purchasing products, and it is no different when on the hunt for a high fuel stabilizer. Reviews help you pick a product that works great by providing the needed performance, instead of you purchasing a product just for its excellent coverage.

man using fuel stabilizer

Benefits of Using Fuel Stabilizers

  • Fuel stabilizers assist your engine in getting started, especially after it has not been in operation for a while since old gasoline is ineffective.
  • Fuel stabilizers also prevent the onset of oxidation in your fuel as it helps the fuel burn.
  • If you’re looking to prolong the lifespan of your fuel, you must purchase a fuel stabilizer as it extends the life of gasoline by three to fifteen months.

Best Fuel Stabilizer FAQ:

Q: What is a Fuel Stabilizer?

A: This is a product formulated with chemicals that revitalise your fuel, refreshing it for an easy and quick start after being kept in storage. It is a product that also cleanses your fuel injectors and carburettors while removing water in your engine which might cause corrosion. The fuel stabilizer is a formula created to protect your engine from varnish, gum and rust, ultimately in a bid to lengthen your engine’s lifespan.

Q: How Do Fuel Stabilizers Work?

A: The first thing fuel stabilizers do is to stop the process of chemical breakdown and oxidation in your fuel from happening. When poured into your tank it is distributed throughout the system, after which it starts to absorb water before your fuel does partly.

Q: How Long Will Fuel Stabilizer Keep Gas Fresh?

A: Fuel can be kept fresh for up to 24 months with a fuel stabilizer. This, however, can vary depending on the brand of the product, its quality as well as the source and type of gasoline being stabilised.

Q: Can a Fuel Stabilizer Reverse Bad Fuel?

A: Bad fuel cannot be changed into good fuel with help from a fuel stabilizer. This product has been formulated only too keep your gasoline fresh over long periods of time by being mixed with the stabilizer at the beginning of the storage process.

changing automobile oil

Our Top Pick

The number one product from this article remains the STA-BIL storage fuel stabilizer, one of the best currently on the market. This is a product that provides users with great value for money, as it energises your engine and prevents it from experiencing corrosion and rust. It can be applied in both two and four cycle engines and treats up to 40 gallons of fuel with its sixteen-ounce bottle capacity.

Highly compatible with vehicles such as lawnmowers, personal marine craft and collector cars, the STA-BIL stabilizer is useful in all gasoline including the ethanol blends, and it has been formulated by one of the manufacture and distribution pioneers of engine additives and fluids.

Sources:

  1. Ethanol – Wikipedia
  2. Ethanol fuel – Wikipedia
  3. Hydrocarbon– Wikipedia