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10 bestFuel Additivesof July 2025

112M consumers helped this year.

18% off

1

Red Line (60103) Complete SI-1 Fuel System Cleaner - 15 Ounce
Red Line (60103) Complete SI-1 Fuel System Cleaner - 15 Ounce

Red Line

9.8

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2

Lucas 10013 Fuel Treatment - 1 Gallon
Lucas 10013 Fuel Treatment - 1 Gallon

Lucas Oil

9.6

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3

Liqui Moly 2030 Pro-Line Fuel System Cleaner, 500 ml
Liqui Moly 2030 Pro-Line Fuel System Cleaner, 500 ml

Liqui Moly

9.4

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7% off

4

Gumout 30001 All-in-One Fuel System Cleaner 296ml
Gumout 30001 All-in-One Fuel System Cleaner 296ml

Gumout

9.1

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6% off

5

STA-BIL Fast Fix Small Engine Treatment - Cleans Carbs and Injectors - Fixes Rough Running Engines - Eliminates Water - Treats 10 Gallons, 4 fl. oz. (22303)
STA-BIL Fast Fix Small Engine Treatment - Cleans Carbs and Injectors - Fixes Rough Running Engines - Eliminates Water - Treats 10 Gallons, 4 fl. oz. (22303)

STA-BIL

8.9

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Related productsUp to 21% off

Fuel Treatment/1x1/Quart

Fuel Treatment/1x1/Quart

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Lucas 10020 Fuel Treatment - 5.25 oz

Lucas 10020 Fuel Treatment - 5.25 oz

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Royal Purple 11722 Max-Clean Fuel System Cleaner and Stabilizer, 20-Ounce Bottle

Royal Purple 11722 Max-Clean Fuel System Cleaner and Stabilizer, 20-Ounce Bottle

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BG 44K Fuel System Cleaner Power Enhancer 4 Pack 11oz can

BG 44K Fuel System Cleaner Power Enhancer 4 Pack 11oz can

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6

Gumout 29994 Regane High Mileage Complete Fuel System Cleaner, 355mL
Gumout 29994 Regane High Mileage Complete Fuel System Cleaner, 355mL

Gumout

8.6

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8% off

7

Chevron Techron High Mileage Fuel System Cleaner, 12 oz, Pack of 6
Chevron Techron High Mileage Fuel System Cleaner, 12 oz, Pack of 6

Chevron

8.3

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8

Gumout 29991 Fuel Injector Cleaner, 355mL
Gumout 29991 Fuel Injector Cleaner, 355mL

Gumout

8.0

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9

Gumout® Fuel Injector/Carburetor Cleaner, 177mL
Gumout® Fuel Injector/Carburetor Cleaner, 177mL

Gumout

7.7

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10

Liqui Moly 2001 Valve Clean - 150 ml, Blue
Liqui Moly 2001 Valve Clean - 150 ml, Blue

Liqui Moly

7.5

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