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10 bestEngine Sludge Cleanerof December 2025

112M consumers helped this year.

1

Liqui Moly 2037 Pro-Line Engine Flush - 500 Milliliters

Liqui Moly 2037 Pro-Line Engine Flush - 500 Milliliters

Liqui Moly 2037 Pro-Line Engine Flush - 500 Milliliters

Liqui Moly

9.8

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2

Liqui Moly Jectron Fuel Injection Cleaner (300 ML) 2 Pack

Liqui Moly Jectron Fuel Injection Cleaner (300 ML) 2 Pack

Liqui Moly Jectron Fuel Injection Cleaner (300 ML) 2 Pack

Liqui Moly

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 2030 Pro-Line Fuel System Cleaner, 500 ml

Liqui Moly

9.4

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4

Gumout 29233 Brake Cleaner 410g Aerosol

Gumout 29233 Brake Cleaner 410g Aerosol

Gumout 29233 Brake Cleaner 410g Aerosol

Gumout

9.1

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5

XADO Engine Oil System Cleaner with Anti-Carbon Effect - Removes Contamination & Engine Sludge - ATOMEX Total Flush Revitalizant (Bottle, 250ml)

XADO Engine Oil System Cleaner with Anti-Carbon Effect - Removes Contamination & Engine Sludge - ATOMEX Total Flush Revitalizant (Bottle, 250ml)

XADO Engine Oil System Cleaner with Anti-Carbon Effect - Removes Contamination & Engine Sludge - ATOMEX Total Flush Revitalizant (Bottle, 250ml)

XADO

8.9

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OtherRelated productsUp to 12% off

LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue

LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue

Liqui Moly (5200) Oil Sludge Remover - 300 ml

Liqui Moly (5200) Oil Sludge Remover - 300 ml

Oil Eater Original 1 Gallon Cleaner and Degreaser - Dissolve Grease Oil and Heavy-Duty Stains – Professional Strength

Oil Eater Original 1 Gallon Cleaner and Degreaser - Dissolve Grease Oil and Heavy-Duty Stains – Professional Strength

Gumout 29210 Carburetor and Choke Cleaner, 350g

Gumout 29210 Carburetor and Choke Cleaner, 350g

9% off

6

Liqui Moly 08931 Système de Nettoyage catalytique

Liqui Moly 08931 Système de Nettoyage catalytique

Liqui Moly 08931 Système de Nettoyage catalytique

Liqui Moly

8.6

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16% off

7

STAR BRITE Star Tron Fuel Tank Cleaner - Remove Sludge, Varnish & Other Deposits - Rejuvanate Old, Stale Fuel - Concentrated Formula Works in Gas Tanks & Diesel Tanks - 64 OZ (093664), Blue

STAR BRITE Star Tron Fuel Tank Cleaner - Remove Sludge, Varnish & Other Deposits - Rejuvanate Old, Stale Fuel - Concentrated Formula Works in Gas Tanks & Diesel Tanks - 64 OZ (093664), Blue

STAR BRITE Star Tron Fuel Tank Cleaner - Remove Sludge, Varnish & Other Deposits - Rejuvanate Old, Stale Fuel - Concentrated Formula Works in Gas Tanks & Diesel Tanks - 64 OZ (093664), Blue

STAR BRITE

8.3

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14% off

8

Oil Eater Aod5G35438 Original Cleaner Degreaser 5 Gallon Pail, Pack of 1

Oil Eater Aod5G35438 Original Cleaner Degreaser 5 Gallon Pail, Pack of 1

Oil Eater Aod5G35438 Original Cleaner Degreaser 5 Gallon Pail, Pack of 1

Oil Eater

8.1

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7% off

9

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

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

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

Gumout

7.8

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13% off

10

STP Super Concentrated Fuel Injector Cleaner Fuel Additive, 155ml

STP Super Concentrated Fuel Injector Cleaner Fuel Additive, 155ml

STP Super Concentrated Fuel Injector Cleaner Fuel Additive, 155ml

STP

7.5

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