We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy PolicyWe use cookies to enhance your experience and personalize ads. By using the site, you agree to that. Privacy Policy

10 bestEngine Additiveof November 2024

112M consumers helped this year.

1

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

Liqui Moly

9.9

View Product
Buy it on Amazon

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

View Product
Buy it on Amazon

3

Liqui Moly 2037 Pro-Line Engine Flush - 500 Milliliters
Liqui Moly 2037 Pro-Line Engine Flush - 500 Milliliters

Liqui Moly

9.6

View Product
Buy it on Amazon

4

Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems…
Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems…

Archoil

9.4

View Product
Buy it on Amazon

5

Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles
Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles

Archoil

9.2

View Product
Buy it on Amazon

Related productsUp to 14% off

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

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

View Deal
Liqui Moly Ceratec Oil Additive Treatment Ceramic Wear Protection 300ml

Liqui Moly Ceratec Oil Additive Treatment Ceramic Wear Protection 300ml

View Deal
STP 17174 Multipurpose Motor Treatment, 473ml

STP 17174 Multipurpose Motor Treatment, 473ml

View Deal
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)

View Deal

6

Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml

Liqui Moly

8.9

View Product
Buy it on Amazon

7

Liqui Moly Jectron 7711 Gasoline Fuel Injection Cleaner additive, Cleans Valves & Injectors Without Removal. Updated to replace Liqui Moly 2007-300ML
Liqui Moly Jectron 7711 Gasoline Fuel Injection Cleaner additive, Cleans Valves & Injectors Without Removal. Updated to replace Liqui Moly 2007-300ML

Liqui Moly

8.7

View Product
Buy it on Amazon

8

Liqui Moly 20004 Hydraulic Lifter Addtive (2 Pack)
Liqui Moly 20004 Hydraulic Lifter Addtive (2 Pack)

Liqui Moly

8.4

View Product
Buy it on Amazon

9

Lucas Oil H/D Oil Stabilizer/12x1/Quart, Multi, One Size (10001)
Lucas Oil H/D Oil Stabilizer/12x1/Quart, Multi, One Size (10001)

Lucas Oil

8.1

View Product
Buy it on Amazon

10

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

Liqui Moly

7.9

View Product
Buy it on Amazon
subscribe-icon

Best Reviews Guide Newsletter

Get exclusive articles, recommendations, shopping tips, and sales alerts

By submitting your email address you agree to our Terms and Conditions and Privacy Policy