The 10 Best Fuel Additives to Buy – July 2021 Review

Looking for the best Fuel Additives?

We did 29 hours of research and testing 22 products to create this review. We believe the best Fuel Additives doesn’t have to be the most sophisticated to be exceptional. Our product selection lives up to its promise. Many different criteria were used for this comparison to be more relevant and more precise. Now discover our comparison !

TOP 10

No. 1
Stanadyne Performance Formula Diesel Fuel Additive - 16 Oz. Case of 12
  • Restores/Increase Horsepower: detergents clean deposits in the injection system
  • Reduces Fuel Consumption tests show an average of 4 percent improvement in MPG and gains up to 9.6 Percent
  • Cetane Improver improves combustion resulting in better engine starting, running and reduced noise
  • Reduces Wear: Lubricity improvers restore lubricity to ultra low sulfur diesel fuels
  • Reduces Emissions reduces Smoke and Particulates
SaleNo. 2
Star Tron Enzyme Fuel Treatment - Concentrated Gas Formula 16 oz - Treats 256 Gallons
  • Cures and prevents ethanol fuel problems; helps prevent phase separation
  • For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel
  • Makes engines start easily and run smoothly; improves fuel economy and reduces emissions
  • Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions
  • Concentrated formula #930XX is economical to use in large and small applications; safe for use in all engines (including 2-cycle pre-mix)
No. 3
Red Line (60103) Complete SI-1 Fuel System Cleaner - Gas and Injector Additive Treatment - 15 Oz Bottle
  • DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning & preventing corrosion in fuel systems
  • PERFORM & PROTECT: Fuel additive cleans injectors, carburetors, valve & combustion chamber deposits with a powerful, concentrated blend of high-temp and low-temp detergents
  • EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation
  • EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment
  • WHY RED LINE: Established in 1979, Red Line products perform & protect better than any on the market no compromises
SaleNo. 4
YAMAHA ACC-RNGFR-PL-12 Yamalube Ring-Free Fuel Additive
  • Improves power and efficiency in two and four stroke engines
  • Removes and prevents carbon and varnish deposits from injectors, carburetors, intake valves, intake ports and combustion chambers
  • Fights corrosive elements of sulfur in Ethanol blended fuels
  • Use with Yama lube Fuel Stabilizer and Conditioner PLUS to prevent any harmful effects
No. 5
Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566
  • Made in the U.S.A. Restores/Increase Horsepower.
  • Reduces Fuel Consumption–tests show an average of 4% improvement in MPG and gains up to 9.6%
  • Cetane Improver – improves combustion resulting in better engine starting, running & reduced noise
  • Reduces Wear – lubricity improvers restore lubricity to ultra low sulfur diesel fuels
  • Reduces Emissions – reduces Smoke and Particulates
No. 6
Stanadyne Performance Formula Diesel Fuel Additive - Pack of 4 Pint Bottles - Part # 38565
  • Restores/Increase Horsepower – detergents clean deposits in the injection system
  • Reduces Fuel Consumption–tests show an average of 4% improvement in MPG and gains up to 9.6%
  • Cetane Improver – improves combustion resulting in better engine starting, running & reduced noise
  • Reduces Wear – lubricity improvers restore lubricity to ultra low sulfur diesel fuels
  • Reduces Emissions – reduces Smoke and Particulates
No. 7
Yamaha Outboard Ring Free Plus Fuel Additive Quart (32 ounce) ACC-RNGFR-PL-32
  • Synthetic PLUS formula provides superior deposit control, cleaning fuel injectors, carburetors, intake valves, intake ports, and combustion chambers
  • Featuring metal filmers, it also protects silver solder, copper, aluminum, and steel in a fuel system from the corrosive affects of ethanol sulfate salt.
  • Yamalube Oils
  • Yamalube
No. 8
Fuel Ox Marine - Complete Fuel Treatment and Combustion Catalyst - Additive for Gas or Diesel - for Inboard or Outboard Motors - Treats Fuel for Boats or Jet Skis - Treats 1250 Gallons -16oz Bottle
  • ✔ INCREASES FUEL ECONOMY : Fuel Ox Marine contains a patented combustion catalyst that provides a more complete combustion. This allows for more productive burn of fuel.
  • ✔ PROTECTS AGAINST ETHANOL : Fuel Ox Marine coats fuel tank and system to prevent corrosion from ethanol found in gasoline.
  • ✔ REMOVES WATER : Fuel Ox Marine is a demulsifier for the water that is in fuel. It will separate the water suspended in gas or diesel and filter out through your boat's or watercraft's racors, separators, or filters. It prevents water from passing through engine and significantly slows the process of phase separation.
  • ✔ BOOSTS POWER : Fuel Ox Marine contains a patented combustion catalyst that provides a more complete combustion. This more complete burn allows for more BTUs to be burned increasing octane two points and increasing the power of the boat or watercraft.
  • ✔ 1OZ TREATS UP TO 80 GALLONS OF GAS OR DIESEL : Fuel Ox Marine has a highly concentrated formula that treats both gas or diesel for a small and convenient inventory.
No. 9
Performance Formula One Shot 8oz, Case of 24 Bottles Treats 30 gallons Diesel Fuel per Bottle
  • Restores/Increase Horsepower: detergents clean deposits in the injection system
  • Reduces Fuel Consumption tests show an average of 4 percent improvement in MPG and gains up to 9.6 Percent
  • Cetane Improver improves combustion resulting in better engine starting, running and reduced noise
  • Reduces Wear: Lubricity improvers restore lubricity to ultra low sulfur diesel fuels
  • Reduces Emissions reduces Smoke and Particulates
No. 10
K-100 MG All-in-One Gasoline Fuel Treatment & Additive - Eliminates Water, Stabilizes Fuel, and Cleans Engine & Fuel Systems - 32 oz. (K100-G)
  • New
  • Flash point: 40.5
  • Part number: K100-MG32
  • Package Dimensions: 8.128 L x 25.654 H x 8.382 W (centimeters)

Intro

Find out where you can get the best Fuel Additives! Making your choice among different Fuel Additives on the market is not always easy. It can also turn into a daunting task because of the many websites offering the same type of product. On this page, we will give you a comparison to get the best value for your money. This complete ranking provides you with a comprehensive view and allows you to pick the best Fuel Additives. You will find a broad selection of models, brands, and prices. Whether you want to save money or find out what is the best Fuel Additives for you, our comparison will help you make the right choice. To keep things practical and easy to understand, we created a Top 10 of the best Fuel Additives. You won’t have to choose your products at random anymore.. On your marks! Compare! Pick your Fuel Additives!

Our Picks

No. 1
Stanadyne Performance Formula Diesel Fuel Additive - 16 Oz. Case of 12
  • Restores/Increase Horsepower: detergents clean deposits in the injection system
  • Reduces Fuel Consumption tests show an average of 4 percent improvement in MPG and gains up to 9.6 Percent
  • Cetane Improver improves combustion resulting in better engine starting, running and reduced noise
  • Reduces Wear: Lubricity improvers restore lubricity to ultra low sulfur diesel fuels
  • Reduces Emissions reduces Smoke and Particulates
SaleNo. 2
Star Tron Enzyme Fuel Treatment - Concentrated Gas Formula 16 oz - Treats 256 Gallons
  • Cures and prevents ethanol fuel problems; helps prevent phase separation
  • For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel
  • Makes engines start easily and run smoothly; improves fuel economy and reduces emissions
  • Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions
  • Concentrated formula #930XX is economical to use in large and small applications; safe for use in all engines (including 2-cycle pre-mix)
No. 3
Red Line (60103) Complete SI-1 Fuel System Cleaner - Gas and Injector Additive Treatment - 15 Oz Bottle
  • DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning & preventing corrosion in fuel systems
  • PERFORM & PROTECT: Fuel additive cleans injectors, carburetors, valve & combustion chamber deposits with a powerful, concentrated blend of high-temp and low-temp detergents
  • EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation
  • EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment
  • WHY RED LINE: Established in 1979, Red Line products perform & protect better than any on the market no compromises

Why you should trust us?

This guide is the result of more than 10 years of experience in researching, testing, and writing about various subject. Our team members are experts in their fields. We spent 29 hours reading all the articles we could find online and all the customer reviews on various retail websites such as Amazon, Ebay, Alibaba or Flipkart. We also found many websites that provided valuable resources such as purchasing guides and detailed information on Fuel Additives. To help you make the best choice among the hundreds of products available, we decided to offer you a comparison in order to find the best value for your money. We searched different fields to find the best Fuel Additives. We also looked at the best alternatives for reasonably priced and easy to use products. After we determined our main parameters, we conducted our research and tests.These parameters separate a great product from an average one:

  • Price
  • Ease of use
  • Customer reviews
  • Quality
  • Durability

Conclusion

We hope this ranking was helpful to you in choosing the Fuel Additives that best suits you. We made it thoroughly and we will update it regularly, so that you get a real-time comparison. Our goal is to allow you to compare models and prices, to get an overview of what the market has to offer. We are here to make it easier for you and to make informed decisions. If our ranking gave you a clearer view on the different products available, feel free to let us know in the comments section. We will happily read them.

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Last update on 2021-07-27 at 15:43 / Affiliate links / Images from Amazon Product Advertising API