If you want to make sure your old or stored fuel is still viable for use, what you need is a good stabilizer. However, finding the best fuel stabilizer to meet your needs depends on a few different factors, and it’s important to understand what these products can and can’t do before buying and using.
In this article, you’re going to learn all about how fuel stabilizers work. You’ll also discover what to consider when buying one and find reviews of the best fuel stabilizers out there for both diesel and gasoline engines.
Quick Links to Our Top Recommendations for Best Fuel Stabilizers
- Briggs & Stratton 100119 Fuel Stabilizer for Gasoline
- Stabilizes fresh gasoline for up to three years and is compatible with any gasoline engine
- PRI Fuel Stabilizer – Gasoline (Fuel Economy Booster)
- A highly concentrated formula for all two- and four-stroke engines that can treat up to 256 gallons of gasoline.
- Royal Purple Max-Clean Fuel System Cleaner and Stabilizer
- This one is compatible with just about any engine and doesn’t just stabilize fuel but also improves engine performance.
- Yamaha ACC-FSTAB-PL-32 Gas Stabilizer & Conditioner
- A brand-specific stabilizer and conditioner for E10 Yamaha engines.
- STA-BIL (22275) 360° Performance with Vapor Technology, Fuel Treatment and Stabilizer
- Offers comprehensive protection for fuel systems and engines and a great choice for preserving fuel in seasonal-use engines.
- STA-BIL 22207 Gasoline Stabilizer
- This 16-ounce bottle treats up to 40 gallons of fuel and stabilizes fuel for up to 24 months. Ideal for smaller engines.
- Star Tron Enzyme Fuel Treatment Concentrate – Rejuvenate & Stabilize Old Gasoline
- Treats over 250 gallons of fuel and is great for rejuvenating old gasoline and clearing out neglected engines.
- Sta-Bil 22255 Diesel Formula Fuel Stabilizer and Performance Improver
- Ideal for both stored fuel and regular maintenance and is guaranteed to improve performance in your diesel engine.
- Star Tron Enzyme Fuel Treatment – Super Concentrated Diesel Formula
- Cleans sludge, soot, and other debris out of your engine, helps improve fuel economy, and reduces noxious emissions.
Note: Clicking the above links will take you to further information, current prices, and customer reviews on Amazon.
Contents (Jump to Topic)
- 1 Quick Links to Our Top Recommendations for Best Fuel Stabilizers
- 2 Best Fuel Stabilizers for Gasoline
- 2.1 Briggs & Stratton Advanced Formula Fuel Treatment and Stabilizer
- 2.2 PRI Fuel Stabilizer [16 Oz.] [Fuel Economy Booster]
- 2.3 Royal Purple Max-Clean Fuel System Cleaner And Stabilizer
- 2.4 Yamaha Acc-Fstab-Pl-32 Fuel Stabilizer & Conditioner
- 2.5 STA-BIL 360° Performance With Vapor Technology, Treatment and Fuel Stabilizer for Gasoline
- 2.6 STA-BIL 22207 Gasoline Stabilizer – 16 Oz.
- 2.7 Star Tron Enzyme Fuel Treatment Concentrate
- 3 Best Fuel Stabilizers for Diesel Engines
- 4 What Is a Fuel Stabilizer? How Does It Work?
- 5 How Long Is Too Long to Store Fuel?
- 6 Can a Stabilizer Reverse Bad Fuel?
- 7 How to Choose the Best Fuel Stabilizer – Buying Guide
- 8 Conclusion
Best Fuel Stabilizers for Gasoline
Below, we’ve rounded up and added mini-reviews of the best fuel stabilizers for gasoline for your convenience.
Briggs & Stratton Advanced Formula Fuel Treatment and Stabilizer
This versatile product can be used to treat any gasoline engine. Whether you want to use it on your chainsaw or your small boat, it’ll do the job. This treatment is suitable for two-stroke and four-stroke engines alike.
The concentrated formula means that one bottle is sufficient for engines small and large. A 16-ounce bottle is capable of treating 80 gallons of fuel.
You won’t have to worry about following up with applications for a long time. If the equipment you’re applying this product to is only being used occasionally, this is a practical product to choose.
As long as the gasoline you’re treating is fresh, you can expect it to last up to three years. The quality of the gasoline remains consistent, whether you turn on the motor months or years after adding the stabilizer.
And it does more than just stabilize gasoline. It contains detergents to reduce the risk of buildup inside your engine. The formula also includes antioxidants against ethanol for extra protection. In turn, this prevents corrosion and other chemical reactions. All of these positive effects can improve engine function overall.
This is useful for those of you who want to stabilize fuel in winter equipment – engines tend to be more prone to rougher starts when the temperature drops.
Features and Specifications
- Bottle capacity: 16 ounces.
- Compatible with all two and four-cycle gas engines.
- One bottle can treat up to 80 gallons.
- Stabilizes for up to three years.
What We Like
- A little goes a long way.
- Suits all sorts of engines from boat motors to lawnmowers.
- Long-lasting.
- Includes detergent and antioxidants.
What We Don’t Like
- Only treats fresh gas.
- Plastic container has been known to leak.
Summary
If you want a fuel stabilizer that’ll do the trick for all your seasonal equipment or vehicles, this Briggs & Stratton product will work for you.
PRI Fuel Stabilizer [16 Oz.] [Fuel Economy Booster]
This product functions as both a stabilizer and rejuvenator. Despite the small container, one bottle can treat up to 256 gallons of gasoline. This is because it’s highly concentrated, which makes it one of the most cost-effective gasoline fuel stabilizers out there. If you’re using it sporadically, one bottle can last you years.
Measuring out the quantity you’ll need is easy. The spout of the bottle comes with a gauge.
You can use this product with any gasoline engine to keep fuel fresh. This applies to small as well as large engines. Treating fresh gas will keep it stable for up to one year.
You can also rejuvenate gasoline that has been left unused for years. If you’re thinking about draining fuel from a long-neglected engine, try PRI’s stabilizer first. It works on gasoline that has been stored for long periods of time.
PRI fuel stabilizer can have other applications too. If you’re suffering with an engine that starts roughly, this product could help.
It contains conditioning compounds to help your engine run smoothly. If you’re tired of a hard-to-start engine, this product is ideal. Try treating an older truck or car with this product, rather than a traditional fuel booster.
Features and Specifications
- Bottle capacity: 16 ounces.
- One bottle treats up to 256 gallons.
- Enhanced thermal stability chemistry increases engine power and performance.
- Restores degraded fuels and extends storage life.
- Prevents damaging deposits.
- Contains no alcohol.
- Compatible with any gasoline engine.
What We Like
- Highly concentrated.
- Built-in measuring gauge.
- Capable of restoring old fuel.
- Compatible with any engine.
- Helps alleviate rough starting and idling.
What We Don’t Like
- Seems to be ineffective on dirty equipment.
Summary
The PRI-G stabilizer is ideal for users looking to refresh old gasoline or keep stored gasoline in prime condition. It also improves engine performance. If you’re not interested in buying and using a stabilizer repeatedly, this heavily concentrated product is a great choice.
Royal Purple Max-Clean Fuel System Cleaner And Stabilizer
As the name suggests, this product does more than stabilize fuel. It’s designed to improve the performance of both diesel and gas engines.
A great feature of this stabilizer is that nearly anyone can use it. Whether your engine is large or small, gasoline or diesel, this Purple Max product is suitable.
This product contains agents to keep your engine and fuel system clean. By breaking down build-ups and preventing them from reforming, it can lower toxic emissions.
Those of you with older vehicles can take advantage of this liquid. Using it regularly (every 10,000 miles) will combat typical issues of many older cars, trucks, or appliances. This includes rough idling and start-up, engine pinging, and engine knocking.
The cleaner things are, the better your engine will behave. You’ll find you get better miles to the gallon than with a dirty fuel system. You’ll also see increased horsepower.
On newer vehicle engines, Purple Max’s stabilizer can be used as a preventative measure. You can keep your engine and entire fuel system like new in terms of cleanliness.
You’ll also have a guarantee against expired fuel in off-season vehicles or equipment.
The Purple Max stabilizer and cleaner will go a long way when treating smaller engines. You’ll only need to add a single ounce to treat one gallon of fuel.
Features and Specifications
- Bottle capacity: 20 ounces.
- Compatible with all two and four-cycle gasoline and diesel engines.
- One bottle treats 20 gallons.
- Stabilizes fuel during seasonal or long-term storage.
- Removes buildup and deposits.
- Maximizes horsepower and restores fuel economy.
What We Like
- Suitable for almost any engine.
- Cleans out buildup and reduces emissions.
- Prevent corrosion.
- Improves engine performance and fuel consumption.
- Reduces issues common in older vehicle engines.
What We Don’t Like
- Can gunk up smaller engines (g. lawnmowers).
- Should only be used with fresh fuel.
Summary
Vehicle owners looking to give new life to older engines will appreciate this product. If you want more than just a stabilizer, this product will appeal to you, although you’ll probably need to use the whole bottle at once.
Yamaha Acc-Fstab-Pl-32 Fuel Stabilizer & Conditioner
This fuel stabilizer and conditioner by Yamaha is made for E10 gas engines. If you have a new Yamaha engine, you might prefer this brand-specific stabilizer. Using a Yamaha stabilizer and conditioner will keep you from voiding your warranty.
E10 engines are any engine that runs off 90 percent gasoline and 10 percent ethanol. Many engines in the United States run off an E10 blend as it’s the most common type of motor gasoline.
Unlike many other fuel stabilizers, Yamaha’s formula is alcohol-free. It’s suitable for all metals, including aluminum. You won’t have to worry about corroding or otherwise damaging your E10 engine.
This product is designed to prevent chemical changes from taking place in aging gasoline. This means phase separation, gum, and varnish. You can expect your fuel to remain stable for up to one year after treatment.
You’re unlikely to deal with rough starts or choppy idling with this product, even after extended storage. Engines treated with it should start up smoothly and evenly.
Features and Specifications
- Bottle capacity: 32 ounces.
- Alcohol-free formula.
- Specifically made for E10 gas engines.
- Helps protect metals from corrosion and rust.
- Compatible with all gasoline engines.
- Helps reduce phase separation problems.
- One bottle treats 96 gallons.
What We Like
- Reputable manufacturer (Yamaha).
- Suitable for all engines that run off E10.
- Anti-corrosion.
- Stabilizes fuel for a long time.
- Dual-purpose conditioner and stabilizer.
What We Don’t Like
- Can only treat fresh gasoline.
Summary
Yamaha engine owners can purchase this product to keep their investment under warranty. That being said, any E10 engine owner–no matter the vehicle make – will appreciate the Yamaha fuel stabilizer and conditioner.
STA-BIL 360° Performance With Vapor Technology, Treatment and Fuel Stabilizer for Gasoline
This stabilizer by STA-BIL is great for preserving gas in seasonal-use engines. One ounce will treat up to five gallons of gas.
It offers comprehensive protection for fuel systems and engines. The alcohol-free formula vaporizes to rise above the fuel line. Whether you’re using an ethanol blend of gasoline or something else, this stabilizer is compatible.
The vapor can reach all the way to your combustion chamber and other internal workings in your engine. The rising film will coat all metal and rubber parts for extra protection.
The alcohol-free formula can break down as well as prevent buildup from oxidizing gasoline. It’s also capable of stripping away carbon build-up, to boost your engine’s power. Best of all, your engine doesn’t have to be running for this process to take place. To reap these benefits, you only have to treat fresh gasoline with the appropriate dosage.
If you like, you can use this product for vehicle maintenance. By keeping your vehicle’s fuel system and engine clean, you’ll most likely get better mileage.
Adding it to fresh gasoline will keep it stable for up to 12 months. And if you’re treating smaller engines, one bottle will serve you for a long time.
Features and Specifications
- Bottle capacity: 32 ounces (other sizes available).
- Compatible with all gasoline engines.
- Alcohol-free formula.
- One 32-ounce bottle treats up to 160 gallons.
- Stabilizes for up to 12 months.
What We Like
- Long-lasting quantity if used for smaller engines.
- Improves small engine performance.
- Can promote better mileage in vehicles.
- Protects above the fuel line.
- Smooths out rough engines.
What We Don’t Like
- Blockages can occur in unclean engines.
- Several users report no difference to their vehicles.
Summary
If you want to keep both large and small engines running like new, as well as stabilize your stored gas for up to 12 months, this STA-BIL product is a good choice.
STA-BIL 22207 Gasoline Stabilizer – 16 Oz.
If you hate preparing your small-engine equipment for storage, try this STA-BIL fuel stabilizer. The 16-ounce bottle can treat up to 20 gallons of gasoline.
This product works with any gasoline-run engine. It includes ingredients to discourage phase separation and corrosion in ethanol blends too.
This is all you’ll need for equipment like snow-blowers, lawnmowers, and similar items. It’s also enough for small containers of stored gasoline you might need for generators or an emergency vehicle refill.
The manufacturer claims your gasoline will stay stable for up to two years after application. If you’re the type that tends to be forgetful, this stabilizer may come to the rescue.
Features and Specifications
- Bottle capacity: 16 ounces (also available in other sizes).
- Compatible with all gasoline engines.
- One 16-ounce bottle treats up to 40 gallons.
- Stabilizes for up to 24 months.
- Quick, easy starts after storage.
- Easy-pour, quick-measure bottle
What We Like
- Perfect quantity for smaller engines.
- Ensures rapid engine start after storage.
- Users have reported stabilized fuel for years after application.
- Prevents corrosion.
- Easy-measure bottle.
What We Don’t Like
- Only works on fresh fuel.
- Gas tanks must be kept filled to 95 percent capacity with fresh fuel during storage.
Summary
If you don’t want your stabilizer to go to waste, this compact bottle is the solution. The 16-ounce capacity treats up to 40 gallons of gas – just the thing if you don’t have much to stabilize.
Star Tron Enzyme Fuel Treatment Concentrate
This concentrated product can be used for a range of applications. To start with, you can treat over 250 gallons of gasoline with a single 16-ounce bottle.
The stabilizer needs to be added before fill-up, and initial treatment needs 1 ounce for every 8 gallons. Subsequent refills only require half that amount.
Measuring this stabilizer out is easy thanks to 1-ounce markings on the bottle. In the event that you accidentally pour too much in, there’s no need to panic. The ingredients are engine-friendly, and the excess product won’t cause damage or blockages.
Fresh gasoline treated with Star Tron’s stabilizer will last you for two full years. Fuel doesn’t start to deteriorate until closer to the two-year mark. Your engine will start up smoothly even if you choose to keep it stored for that long.
This stabilizer can also refresh old engines. The formula includes enzymes to break down deposits and dirt in your fuel system and engine. These enzymes also assist with water dispersal. Excess water is one of the main causes of phase separation in gasoline.
You can use it as a maintenance product for engines of any size. Stable fuel and clean inner workings make for improved performance. You’ll also notice fewer toxic emissions.
This treatment can also rejuvenate stored fuel that’s been neglected for months or, in some cases, years.
Features and Specifications
- Bottle capacity: 16 ounces (other sizes available).
- Compatible with all gasoline engines.
- One 16-ounce bottle treats up to 256 gallons.
- Stabilizes for two years.
- Helps to rejuvenate stale fuels and prevents phase separation.
- Removes gum, varnish, and carbon.
What We Like
- Going overboard with dosage won’t harm your engine.
- Cleans out existing buildup and gunk.
- Protects against corrosion.
- Enhances combustion.
- Easy to measure out.
- Refreshes years-old gasoline.
What We Don’t Like
- Should be used at every fill-up for optimum efficiency.
- Not as concentrated as some other products.
Summary
Star Tron enzyme concentrate is great for rejuvenating old gasoline and clearing out neglected engines. It will give you peace of mind when storing gas for up to two years. Works on boats, motorcycles, mowers, and so many other gas-powered engines.
Best Fuel Stabilizers for Diesel Engines
For the readers out there with equipment that requires diesel to run, we’ve got you covered. Here are two of the best diesel fuel stabilizers on the market.
Sta-Bil 22255 Diesel Formula Fuel Stabilizer and Performance Improver – 128 Fl. Oz.
If you want to take precautions against engine trouble, this stabilizer will do the job. Treated fuel will remain stable for up to two years. This stabilizer is compatible with any type of diesel, including biodiesel.
Stabilizing fuel isn’t the only thing this product does. The formula lowers water content in diesel to discourage the growth of algae and microbes.
This benefit will be noticeable in engines prone to water trouble. The STA-BIL treatment will eliminate “watery” startups in stored engines, from RVs to tractors.
It also has conditioning agents to maximize your engine’s performance. These ingredients will keep your fuel injectors clean and lubricated, and also benefit the fuel lines. In addition, they’ll break down built-up sediment or sludge. If you’re using it on a new piece of equipment, it stops these compounds from forming in the first place.
You can add this to your gas tank every time you fill it up – one ounce treats 10 gallons. For stored vehicles and equipment, use one ounce for every five gallons of diesel.
Features and Specifications
- Bottle capacity: 1 gallon (also available in a 32-ounce size).
- Compatible with all biodiesel and diesel engines.
- The 1-gallon bottle treats up to 1280 gallons.
- Stabilizes for up to two years.
- Cleans and lubricates fuel pumps and fuel injectors.
- Prevents corrosion and helps remove water.
What We Like
- Great for engine maintenance.
- Boosts engine performance.
- Improves mileage in vehicles.
- Long-lasting.
- Cleans out dirty fuel systems and engines.
- Protects against bacteria and algae growth.
What We Don’t Like
- Difficult to pour and measure out.
- Can’t restore old fuel.
- Manufacturer warns not to overtreat.
Summary
This diesel stabilizer can be used for stored fuel or regular maintenance. Either way, you can expect improved engine performance in your diesel engine.
Star Tron Enzyme Fuel Treatment – Super Concentrated Diesel Formula
This super-concentrated stabilizer is ideal for treating diesel of all types. You can even use it to treat heating oil safely.
The formula works to break down water (which can cause issues like sediment buildup and microbes). At the same time, it won’t cause problems if you go overboard with treatment. It’s guaranteed to be safe on your engine and fuel system.
A bonus is that you don’t have to clean out your engines to use it. Existing sludge, soot, or other debris gets broken down.
In vehicles, using this product will get you better fuel economy. You’ll see fewer noxious emissions (e.g. exhaust smoke) too.
Your fuel isn’t the only thing you’ll be saving in the long run. After the initial treatment, one ounce can treat 32 gallons of diesel, so it’s light on the pocket too.
Users have reported using this fuel stabilizer in gasoline engines with success. Note that Star Tron does manufacture a different (but similar) stabilizer specifically for gasoline.
Features and Specifications
- Bottle capacity: 8 ounces (also available other sizes, up to 1 gallon).
- Compatible with all diesel engines.
- Stabilizes for two years.
- Helps remove water.
- Reduces soot.
- Improves fuel economy and throttle response.
- Initial treatment: one ounce treats 16 gallons.
- Maintenance treatment: one ounce treats 32 gallons.
What We Like
- Suitable for treating heating oil.
- Can be used in gasoline engines (at lower doses).
- Engine-safe.
- Keeps engines clean and deposit-free.
- Regular treatments help economize fuel.
- Lowers emissions.
- Overdosing won’t do any harm.
What We Don’t Like
- Needs to be used each time the tank is filled for best results.
Summary
This multi-purpose stabilizer can be used on all diesel engines and make an appreciable difference in how your engine handles. It can also keep your stored diesel stable for up to two years.
What Is a Fuel Stabilizer? How Does It Work?
They are products that preserve stored fuel. Regardless of the fuel type, if it isn’t being used, it won’t last indefinitely. Over time, the chemical structure will change. This applies to all fuels derived from fossil fuel, including diesel, gasoline, kerosene, etc.
Once the composition of fuel is altered, it won’t have the same properties. In a practical sense, once such aged fuel is in your car, your engine won’t run the same way. In fact, it may not work at all.
The fuel in this altered state can also cause damage to the internal workings of the engine. Old gasoline can form solid gum-like deposits. The same is true of diesels. These can clog up the internal workings of the entire engine.
At this point, you may be wondering how fuel can go bad. After all, crude oil has lasted for millions of years.
The answer is that crude oil goes through a refining process to produce the petroleum products that we use today. These range from waxes (such as petroleum jelly) to heating oil and of course, engine fuel. The final products bear little resemblance to the original fossil fuel.
Most of the gasoline sold in the United States is mixed with ethanol. The ethanol works to lower the toxic emissions produced by gasoline-run engines.
Ethanol can separate from gasoline if left unused for long enough. This is known as phase separation. When gasoline is exposed to water, the separation speeds up. This alcohol may be useful when mixed with gasoline but can be corrosive by itself. Ethanol also causes gasoline to evaporate faster, especially under warmer conditions.
Diesel and biodiesel – non-petroleum-based diesel fuel can also degrade with time. The same applies to mixtures of the two, diesel and biodiesel.
Fuel stabilizers are made from substances that prevent or slow these chemical changes. Some brands claim to be capable of restoring old fuel as well as preventing new degradation.
A common ingredient is hydrotreated light naphthenic distillate. It also goes under the names of mineral oil or petroleum distillate, although these terms are broad. Gasoline, for example, is also a petroleum distillate, as are most petroleum products.
Methanol is another conventional fuel stabilizer. It promotes smoother burning and cleaner combustion.
Another benefit is that methanol reduces the risk of corrosion. When mixed with other alcohols, it can combat phase separation in ethanol-based gasoline.
Fuel stabilizers can also contain detergents or conditioning agents. The detergents work to break down gummed-up fuel to prevent blockages. Conditioning agents can be things like lubricants, which improve engine function.
Certain brands of fuel stabilizer are made with secret ingredients. In these cases, only the manufacturer knows the exact formula.
How Long Is Too Long to Store Fuel?
There is no simple answer to this question. Environmental factors like oxygen, heat, and humidity can hasten its expiration date.
Fuel stored in appropriate storage containers will keep for longer. When it’s in a fuel tank (like in your vehicle) it is exposed to the elements, specifically air.
For gasoline, it’s recommended to use it within a month of purchase. If you store it in an airtight can, you can extend the shelf life to six months.
Note that the storage container should have space for the gasoline to expand. It should also be smaller than five gallons.
For diesel, the lifespan in storage is 12 months, if the temperature is below 68 degrees Fahrenheit. At 86 degrees Fahrenheit or higher, you can expect diesel to stay viable for six to 12 months.
Remember this only applies to fuel storage containers, not the tank in your vehicle or equipment. Exposure to metals of all sorts will speed up diesel deterioration.
If you do have old gas that needs throwing away, make sure you dispose of old gas properly and responsibly!
Can a Stabilizer Reverse Bad Fuel?
Some fuel stabilizers are capable of reversing changes in fuel that has been stored for years. The exact ingredients of these types of miracle stabilizers are trademark secrets, though.
The worse the fuel’s condition, the less likely it is that a stabilizer will help. It’s preferable to avoid fuel from aging to that point in the first place.
Bear in mind that running rancid fuel can cause blockages or destroy your engine. You don’t want to make forgetting about stored fuel a habit.
How to Choose the Best Fuel Stabilizer – Buying Guide
There are a few things to consider before you pick a fuel stabilizer, as it’s important you choose the right product for the fuel you want to treat.
Gasoline, Diesel, or Oil Stabilizer?
Gasoline and diesel are distinct from one another. Diesel is denser than gasoline and has a higher boiling point. Gasoline is flammable, whereas diesel is combustible.
Similarly, diesel and gasoline engines run in different ways. You can’t use gasoline in a diesel engine, and vice versa. For these reasons, the oil we use to lubricate our engines is typically fuel-specific.
Your chosen stabilizer also has to be compatible with what you will be using it on. If you want to stabilize both diesel and gasoline, you can opt for one that works with both.
Using an incompatible stabilizer isn’t wise. At best, the wrong fuel additive won’t be effective. At worst, some fuel additives might damage your engine or cause an unpleasant chemical reaction.
Ease of Use and Mixing Instructions
Most brands of fuel stabilizer are straightforward to use. All you have to do is pour the correct amount of product into the tank. This could be before or after you fill the tank, depending on the brand.
The instructions will tell you the right quantity for the amount of fuel you’re treating. You might have to let the product settle before you run the engine.
Having said that, some fuel stabilizers are still easier to use than others. The containers may include spouts that make the liquid easier to measure out.
Check the intended use before purchase. Not all fuel stabilizers are meant for refreshing old fuel but are designed for use on fresh gasoline only.
Any Compatibility Issues
Compatibility doesn’t only apply to the fuel type you want to stabilize. Look at the product guidelines to see what sort of engines the formula is rated for.
A few brands only work on either two-cycle or four-cycle engines. Others are developed for specific vehicles or equipment.
Reviews and Customer Satisfaction
Reviews can guide you in the right direction when you’re buying a fuel stabilizer. You can find out if a particular brand will meet your expectations based on the experiences of others. Search out reviews written by real people, as the manufacturer’s website or product pamphlets can sometimes be biased.
Price
The prices can vary dramatically. The ingredients, manufacturer, and concentration all play a role in the cost.
Quantity is often less important than concentration. A big bottle might treat less fuel than a small bottle if the smaller one has a highly concentrated formula. Compare costs based on how much fuel can be treated, not the actual size of the product.
Conclusion
By now, you should be an expert on all things related to fuel stabilizers. You also know how to select the best fuel stabilizer for you and your vehicle or equipment.
Out of all the products in our roundup, for us there is a clear winner. That is the Briggs & Stratton advanced formula fuel treatment and stabilizer. It stabilizes fresh gasoline for up to three years and is compatible with any gasoline engine.
If you have any feedback, comments, or questions, share your thoughts in the comment section below. We look forward to reading and responding to every one!
