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10 bestEngine Additivesof February 2025

112M consumers helped this year.

12% off

1

Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml
Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml

Liqui Moly

9.9

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2

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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3

Chevron Techron Concentrate Plus Fuel System Cleaner - 20 oz.
Chevron Techron Concentrate Plus Fuel System Cleaner - 20 oz.

Chevron

9.6

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4

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

Lucas Oil

9.5

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13% off

5

STP Super Concentrated Fuel Injector Cleaner Fuel Additive, 155ml
STP Super Concentrated Fuel Injector Cleaner Fuel Additive, 155ml

STP

9.3

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Lucas Oil 10279 Engine Oil Stop Leak - 1 Gallon

Lucas Oil 10279 Engine Oil Stop Leak - 1 Gallon

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Marvel MM14R Mystery Oil 1 Gallon

Marvel MM14R Mystery Oil 1 Gallon

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4 cans of BG Engine Performance Restoration 109

4 cans of BG Engine Performance Restoration 109

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5% off

6

Liqui Moly 2020 Motor Oil Saver - 300 ml
Liqui Moly 2020 Motor Oil Saver - 300 ml

Liqui Moly

9.1

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7

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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8

Liqui Moly 20004 Hydraulic Lifter Additive
Liqui Moly 20004 Hydraulic Lifter Additive

Liqui Moly

8.7

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10% off

9

Liqui Moly 2009 Anti-Friction Oil Treatment-pk4
Liqui Moly 2009 Anti-Friction Oil Treatment-pk4

Liqui Moly

8.4

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7% off

10

Gumout 30002 Multi-System Tune-Up, 473ml
Gumout 30002 Multi-System Tune-Up, 473ml

Gumout

8.2

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