The 10 Best Fuel Stabilizers of 2020

Briggs and Stratton is well known for making small gasoline engines such as those found in lawn mowers and pumps, and this means that they have perfected this product stabilizing gas in such engines.

Besides lawnmowers, you can use this product in gas pressure washers, snowblowers, small pumps, and other small gas engine powered equipment, and this makes it one of the best fuel stabilizers for small engines.

The stabilizer contains an advanced concentrated formula that also treats fuel, and provides triple antioxidant protection to keep the fuel fresh and free of water molecules.

Another important benefit with this product is that the small 16-ounce bottle is capable of treating up to 80 gallons of fuel, and keeps it fresh for up to 3 years.

In this entire duration, the stabilizer guards all metal engine components from corrosion and rust, while also cleaning the fuel systems in both 2 and 4 cycle gasoline engines.

This fuel stabilizer will also not be ideal for use on diesel fuel. However, this will hardly be an issue given that most of the engines that it is meant for use gasoline.

PRI's fuel stabilizer is the best for gas because it offers a complete gasoline treatment, while also being an efficient stabilizer for fuel storage. On top of this, it can be used with all 2 and 4 stroke gas engines, making it highly compatible.

The stabilizer assures smooth, easy and quick start-up whilst delivering efficient and uninterrupted operations in the engine.

Coming in as a 16-ounce bottle, the stabilizer can be used to treat up to 256 gallons of gasoline, which implies the ratio of 1 ounce to 16 gallons.

Other features include an increase in power output, improved fuel efficiency, and prevention of the formation of damaging deposits over time.

Given the bottle design, the fuel stabilizer is more prone to spilling when on storage. Hence, you need to take extra precaution with the storage if you do not use all of it.

This 11722 from Royal Purple takes the title of the best fuel stabilizer for motorcycle because, its potent 3-in-1 will be highly effective at stabilizing motorcycle fuel regardless of the type.

These 3 functions include restoring and improving the fuel economy at an average of 3.2 percent, horsepower increment on an average of 2.6 percent and lastly, a reduction in hydrocarbon and other emissions. 

It is compatible with both diesel and gas engines, as well as all ethanol blended fuels. Additionally, the unit can work with 2 and 4 stroke engines, making it practically ideal for all kinds of engines in the market. 

The 11722 also prevents stalling, hesitation, rough idle and premature spark plug fouling, which can otherwise cause harm to the engine.

On the downside, the 20-ounce stabilizer can only be used to treat 20 gallons of fuel. But, for its price this is still quite good, and this is more so if you will be using it for motorcycles. 

Yamaha is better known as a motorcycle brand, and they made this genuine OEM alcohol-free Yamalube formula especially for E10 gasoline, and it is made to both stabilize and condition the fuel. 

This alcohol-free fuel additive is ideal for use on both 2 and 4 stroke engines. Once applied, the formula helps protect metals along the fuel lines from rust and corrosion, thereby increasing their durability factor.

Additionally, the additive helps to prevent gum and varnish build-up, phase separation and fuel oxidation. This ensures the engine remains as clean as new, further enhancing its efficiency and mpg.

For diesel engines, this will not be an appropriate product, but this should not be a deal breaker given the amazing job that it does on gasoline and other fuels.

Star Brite’s 093108-O is the ideal fuel stabilizer for diesel fuel, and this makes it applicable to use with heavy machinery such as large industrial generators and trucks because most of them are powered by diesel engines. 

That said, this product can work in all types and sizes of diesel engines, and is a good choice for everyday use and seasonal fuel storage. It ensures your diesel engine starts and runs smoothly even if the fuel inside has been sitting idle for up to 2 years.

The stabilizer works by breaking down excess water and sludge to sub-micron size, while also cleaning the entire fuel delivery system, removing gum and varnish deposits.

This results in improved fuel efficiency, reduced emissions (soot and smoke), improved throttle response in diesel cars and increased power output.

Coming in a 32-ounce bottle, this quantity is enough to stabilize 1024 gallons of diesel thanks to the generous 1:32 mixing ratio.

This only works for diesel fuel, but there are still countless good options fro gasoline and other fuels on our list.