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Best Fuel Stabilizers – Top 5 Rated In 2020 Review

Do you always seem to find yourself with some extra gas leftover, whether it be from running machines like lawnmowers or generators or a large truck that only gets used during hunting season.

Storing gas for long periods isn’t a great idea because gas evaporates quickly, which can make the fuel go stale within about three weeks.

That’s why fuel stabilizers were created. But finding one that actually works well can be difficult. Therefore, we’ve put together a review of the best fuel stabilizers to keep your fuel fresh for months on end.

So, let’s go through them and find the perfect fuel stabilizer for you…

Best Fuel Stabilizers

Top 5 Best Fuel Stabilizers On The Market In 2020 Reviews

  1. STA-BIL Fuel Stabilizer – Most Trusted Fuel Stabilizer
  2. Royal Purple Max-Clean Fuel Stabilizer – Best Fuel Stabilizer for Fuel Economy
  3. Yamaha Fuel Stabilizer & Conditioner – Best Ethanol Fuel Stabilizer
  4. Star Tron Enzyme Fuel Treatment – Best Seasonal Fuel Stabilizer
  5. Star Tron Enzyme Fuel Treatment – Concentrated Diesel Formula – Best Diesel Fuel Stabilizer

1 STA-BIL Fuel Stabilizer – Most Trusted Fuel Stabilizer

Want to easily start your car with fuel stored for months, even years? Look no further than STA-BIL. This fuel stabilizer is one of the top-rated fuel stabilizers for a reason. Not only does it succeed in keeping your fuel fresh after months of storage, but it will also help clean out your injectors and carburetor and remove any water that might cause corrosion.

How does it work?

This product will help keep your engine interior fresh and protected by removing any varnish, gum, or rust inside the engine, eliminating the need to drain your fuel afterward.

STA-BIL works well with all two and four-cylinder engines. One 16-ounce bottle is able to treat up to 40 gallons of fuel. This product also works with all gasoline and ethanol-blended fuels.

The main reason we trust it?

Manufactured by one of the largest and well-known aftermarket additive companies, Gold Eagle Company, this product is shipped to over 400 different retail markets and companies.

With such a profile, you can expect only the best quality and service.


STA-BIL Fuel Stabilizer

Our rating:4.8 out of 5 stars (4.8 / 5)

Pros

  • Starts quickly and easily.
  • Prevents corrosion and gum buildup.
  • Works with all gasoline and ethanol-blended fuels.

Cons

  • Claimed benefits are a little exaggerated.

2 Royal Purple Max-Clean Fuel Stabilizer – Best Fuel Stabilizer for Fuel Economy

Royal Purple’s Max-Clean fuel stabilizer has been made with proprietary technology that promises better fuel economy, a reduction in the amount of emissions from the exhaust, and help cleaning up your injectors. Those are some ambitious goals.

Does the product actually manage to achieve this?

Yes. Produced by professionals, the stabilizer is designed to keep your gas fresh during storage and helps keep the engine running well by targeting your car’s intake system.

The product works on any engine, old or new. It can work with gasoline or diesel, making it extremely versatile. It’s not only used as a fuel stabilizer but also a fuel additive.

Impressive results…

After countless tests by Royal Purple, they have concluded that using this stabilizer with your fuel could increase horsepower by an average of 2.6%, leading to better fuel economy of up to 32%.


Royal Purple Max-Clean Fuel Stabilizer

Our rating:4.6 out of 5 stars (4.6 / 5)

Pros

  • Easy to start.
  • Prevents engine stalling.
  • Increases horsepower and fuel economy.

Cons

  • Relatively pricey.

3 Yamaha Fuel Stabilizer & Conditioner – Best Ethanol Fuel Stabilizer

Yamaha is popular for many things, including musical instruments, bikes, and even golf products. But that’s not all; they also make fuel additives.

Their fuel stabilizer is quite popular and for good reason. It offers exceptional performance at a reasonable price. With state-of-the-art technology behind the making of this fuel stabilizer and conditioner, monitored and developed by the best in the world, you can expect only the best.

How does it work?

This fuel stabilizer keeps your fuel fresh for months in storage. Once added to your vehicle, you can also expect an increase in fuel economy, engine power, and performance. Forget about stalling the engine due to old fuel or rusting occurring due to dirty fuel. With the Yamaha fuel stabilizer and conditioner, all those worries are put aside.

It also prevents gum and varnish buildup while helping the engine burn cleaner and more efficiently.


Yamaha Fuel Stabilizer & Conditioner

Our rating:4.8 out of 5 stars (4.8 / 5)

Pros

  • 3 in 1 additive, conditioner, and stabilizer.
  • Alcohol-free formula.
  • Works great.
  • Protects the engine well.

Cons

  • None.

4 Star Tron Enzyme Fuel Treatment – Best Seasonal Fuel Stabilizer

Using unique enzyme technology, Star Tron manufactures their fuel treatment and stabilizer with only the best of care.

This specific manufacturing process enables the additive to prevent any issues with ethanol fuels and phase separation. This stabilizer is one of the more popular additives for seasonal storage, such as during the winter. It keeps your engine turning faster and hotter by more efficiently burning the fuel in the combustion chamber.

Superb longevity…

This product can stabilize your fuel for up to two years if stored correctly. It can also be added to your old fuel to make it work better than before.

The additive also helps reduce carbon emissions from the exhaust, improving engine performance, your carbon footprint, and fuel economy. It also protects the engine from gum buildup, keeps the injectors clean, and helps prevent corrosion.


Star Tron Enzyme Fuel Treatment

Our rating:4.7 out of 5 stars (4.7 / 5)

Pros

  • Keeps gas fresh for up to two years.
  • Reduces carbon emissions.
  • Improves fuel economy.

Cons

  • Some users report delivery problems.

5 Star Tron Enzyme Fuel Treatment – Concentrated Diesel Formula – Best Diesel Fuel Stabilizer

Star Tron’s other fuel additive, which is specifically made for Diesel engines, rounds the list off.

This product can stabilize your diesel fuel for up to two years if stored correctly. If you have some old diesel that isn’t starting well or stalling the engine, add some of this product and watch the magic happen.

Great for seasonal diesel storage…

This product uses the same enzyme technology used for the fuel and ethanol range. It works well for keeping your diesel fresh during seasonal storage, like during the cold winter months or off-season when you aren’t out hunting.

This product keeps your engine burning fuel hotter and more efficiently, offering better fuel economy and some extra horsepower.

Other benefits…

The additive also reduces carbon emissions from the tailpipe, which improves the vehicle’s economy, saving you money on diesel in the long run. It also protects the engine from the buildup of gum, keeps the injectors clean, and prevent corrosion.


Star Tron Enzyme Fuel Treatment – Concentrated Diesel Formula

Our rating:4.7 out of 5 stars (4.7 / 5)

Pros

  • Improves fuel economy.
  • Designed for diesel engines.
  • Engine starts easily and runs smoothly.

Cons

  • Some users report delivery problems.

Best Fuel Stabilizers Buying Guide

Best Fuel Stabilizers Review

Finding the right fuel stabilizer for your needs can be a difficult task. With so many different brands and different types of products, it’s easy to get confused or even overwhelmed.

We’ve taken that into consideration when writing this buying guide, which will ensure you choose the perfect fuel stabilizer for your needs.

Questions to Ask

Is it easy to use?

The longer the lifespan of the fuel stabilizer, the better. Having a fuel stabilizer that can keep fuel fresh for more than a year helps ease your mind and keeps the hassle of upkeep to a minimum. Look for stabilizers that you can just add and leave until needed.

Is it compatible with your vehicle’s fuel type?

Make sure that the fuel stabilizer is made for the fuel that you are using. Some products work with gasoline, ethanol, and diesel, but some only work with one. So make sure the one you purchase is correct; otherwise, it might harm your engine.

Benefits of Using a Fuel Stabilizer

When gasoline is left in storage, vaporization and other chemical reactions take place, making it extremely difficult to ignite the fuel after just a few months. Fuel stabilizers help keep gas fresh for long periods of time when not in use.

Fuel stabilizers can also be used to rejuvenate old fuel. Adding the stabilizer helps the engine burn the old fuel better, thus getting better use out of it.

Types of Fuel Stabilizers

Fuel stabilizers are usually made of petroleum products that bond with the gasoline, creating a protective layer around the fuel, preventing any sort of evaporation from happening. Therefore, when purchasing a fuel stabilizer, ensure that you buy the correct type.

Most gasoline additives are produced by aftermarket manufacturers creating 3 in 1 products, helping with engine performance as well. Diesel additives usually come in larger sizes for bulk use.

Multi-function additives don’t just keep your fuel fresh but also have other benefits once added to the fuel and engine. However, these do usually cost a bit more, and some of the benefits can be over-exaggerated.

Tips for Use

Using fuel stabilizers is generally straightforward. However, every product will come with a different mixing ratio, so it is essential to read the instructions before adding. Most fuel stabilizers are made for large containers or a full tank of gas, so you’ll most likely be adding the entire bottle to a large amount of gas.

As mentioned before, make sure to add the correct type of fuel stabilizer to your fuel type. Mixing the wrong kind of fuel stabilizer could lead to severe engine damage.

Interested in superior vehicle care products?

Don’t miss our reviews of the Best Rust Converters, the Best Carburetor Cleaners, the Best Radiator Stop Leak, and the Best Fuel Injector Cleaners currently on the market.

When it comes to your vehicle interior and exterior, take a look at our comprehensive reviews of the Best Car Upholstery Cleaners, the Best Bug Tar Removers, the Best Plastic Restorers, the Best Headlight Restoration Kits, and the Best Car Scratch Removers you can buy in 2020!

Back to fuel stabilizers…

So which of these Best Fuel Stabilizers should you choose?

Buying the right type of fuel stabilizer can make a massive difference not only to the quality of the fuel you are storing but how efficiently your engine burns it.

Thus, sticking to the tried and tested, the…

STA-BIL

… is our top recommendation. If you are using or storing diesel, there is a diesel version of STA-BIL as well, which means everyone can enjoy the benefits of this truly great product.

Happy stabilizing!

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