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10 Best fuel additives of 2026

Save up to 20% off
  • Best Choice

    1

    Lucas Oil 10003 Fuel Treatment - 1 Quart
    Lucas Oil
    9.6
    Exceptional

    Lucas Oil 10003 Fuel Treatment - 1 Quart

    20% Off
    • Function:Fuel system cleaning and lubrication
    • Primary Benefit:Increases life of pumps and injectors
    • Compliance:Federal low sulfur content requirements
    • Fuel Type Compatibility:Gasoline and diesel engines
    • Volume:1 Quart
  • Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
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    Real users impact
    • Thousands of users trust our site daily
    • Based on millions of stores and reviews
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  • Value for Money

    2

    Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)
    Red Line
    9.3
    Excellent

    Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)

    • Package Quantity:2 Pack
    • Applications:Cleans injectors, carburetors, valve and combustion chamber deposits
    • Efficiency:Cleans nearly 100% efficiency in one treatment
    • Product Type:Complete Fuel System Cleaner
    • Bottle Size:15 Ounce

  • 3

    Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)
    Chevron
    9.1
    Excellent

    Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)

  • 4

    Chevron Techron Concentrate Plus Fuel System Cleaner, 20 oz., Pack of 1
    Chevron
    9.0
    Excellent

    Chevron Techron Concentrate Plus Fuel System Cleaner, 20 oz., Pack of 1

  • 5

    Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector, Valve, and Combustion Chamber Deposit Removal
    Red Line
    8.9
    Very Good

    Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector, Valve, and Combustion Chamber Deposit Removal

    • Package Quantity:N/A
    • Applications:N/A
    • Efficiency:Cleans nearly 100% in one treatment
    • Product Type:N/A
    • Bottle Size:15 Ounce
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  • 6

    STA-BIL Storage Fuel Stabilizer, 16 oz
    STA-BIL
    8.8
    Very Good

    STA-BIL Storage Fuel Stabilizer, 16 oz

    • product dimensions:‎18 x 45 x 923 inches
    • exterior:‎Machined
    • item weight:‎15.4 ounces
    • special features:‎DIRECTIONS – Bottle Directions: To measure small quantities: remove small cap and seal (on long neck), squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour (measurements on bottle side). Usage Directions: 1 oz (30 mL) treats up to 2.5 gallons (9.5 L) of fuel. Use STA-BIL only with fresh fuel and keep gas can or tank 95% full to avoid condensation build up during storage. Run engine for 5 minutes after adding product to treat entire fuel system., ENSURES QUICK, EASY STARTS – Treating your gas with this fuel stabilizer prevents gum, varnish, rust, and corrosion in your fuel tank, all of which are costly to repair. The 16 oz. bottle of this alcohol-free fuel additive treats up to 40 gallons of fuel, and it is perfect to use prior to storing either your vehicle or outdoor power equipment for an extended period., SHELF LIFE – All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package! Proudly made in the USA by a family-owned company in Chicago, Illinois., STORAGE – STA-BIL Storage Fuel Stabilizer eliminates the need to drain fuel and keeps gasoline fresh for up to 24 months. Never fear your car or small engine refusing to start due to fouled fuel. This product is effective in all gasoline and ethanol blended fuels including E-10 through E-85., VERSATILE – STA-BIL Storage Fuel Stabilizer is safe for use in all gasoline engines, including 2-cycle. Use this fuel treatment in your vehicle, motorcycle, lawn mower, snow blower, boat, and generator.
    • item model number:‎22207

  • 7

    Chevron 65740-6PK 65740-CASE Techron Concentrate Plus Fuel System Cleaner - 20 oz., (Pack of 6)
    Chevron
    8.7
    Very Good

    Chevron 65740-6PK 65740-CASE Techron Concentrate Plus Fuel System Cleaner - 20 oz., (Pack of 6)

    14% Off
    • Package Quantity:6
    • Applications:N/A
    • Efficiency:N/A
    • Product Type:Fuel System Cleaner
    • Bottle Size:N/A

  • 8

    Lucas Oil 10013 Fuel Treatment - 1 Gallon
    Lucas Oil
    8.5
    Good

    Lucas Oil 10013 Fuel Treatment - 1 Gallon

  • 9

    Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.
    Royal Purple
    8.4
    Good

    Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.

  • 10

    Chevron Techron High Mileage Fuel System Cleaner, 12 oz, Pack of 1
    Chevron
    8.2
    Good

    Chevron Techron High Mileage Fuel System Cleaner, 12 oz, Pack of 1

    13% Off