10 Best engine cleaners of 2026

Save up to 23% off

1

Chromex

Chromex Ultrasonic Carburetor & Engine Parts Cleaning Solution - Concentrated Degreaser for Aluminum, Brass & Steel - 1 Gallon
9.6

Exceptional

Our Rating
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2

Liqui Moly
Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037
Main highlights

Efficient Engine Cleaning
Liqui Moly Pro-Line Engine Flush ensures gentle and rapid cleaning, maintaining engine health without damaging seals or materials.

Ideal for High-Mileage Vehicles
Perfect for gasoline and diesel engines, especially older models prone to oil sludge and carbon buildup.

Notable Customer Praise for Performance
Customers frequently commend the product for improving engine smoothness and reducing oil consumption.
Key specs
- Function:Clean and flush oil systems
- Volume:15.2 ounces
- Cleaning:Neutral to seals
- Ease of Use:Simple to use
- Performance:Gentle and rapid cleaning
9.4

Excellent

Our Rating

9.7
Simple to use

9.3
worth the money

9.1
Sheerness
3

Chemical Guys
Chemical Guys Signature Series Orange Degreaser Spray - Heavy Duty All Purpose Cleaner for Engines, Tires, Undercarriages, Tools and More, Professional Strength, Breaks Down Grease, Oil & Grime, 16 oz

15% Off
Main highlights

Professional Strength Formula
Signature Series Orange Degreaser offers professional-grade cleaning with citrus extracts and hyper surfactants for tackling tough dirt, grime, and grease.

Versatile Cleaning Applications
Ideal for cars, trucks, SUVs, motorcycles, RVs, and household uses like ovens and grills.

Highly Praised Performance
Customers love its effectiveness on engines and household surfaces, with easy application and impressive results.
Key specs
- size:8.66 x 2.36 x 2.36 inches
- application:Automotive surfaces
- cleaning method:Citrus degreaser
- usage:Engine degreaser
- country of origin:USA
9.3

Excellent

Our Rating

9.9
deep clean

9.3
Simple to use

9.3
Simple to take off
4

Chemical Guys
Chemical Guys Signature Series Orange Degreaser Spray - Heavy Duty All Purpose Cleaner for Engines, Tires, Undercarriages, Tools and More, Professional Strength, Breaks Down Grease, Oil & Grime, 16 oz

23% Off
Main highlights

Professional Strength Formula
Signature Series Orange Degreaser offers professional-grade cleaning with citrus extracts and hyper surfactants for tackling tough dirt, grime, and grease.

Versatile Cleaning Applications
Ideal for cars, trucks, SUVs, motorcycles, RVs, and household uses like ovens and grills.

Highly Praised Performance
Customers love its effectiveness on engines and household surfaces, with easy application and impressive results.
Key specs
- size:8.66 x 2.36 x 2.36 inches
- application:Automotive surfaces
- cleaning method:Citrus degreaser
- usage:Engine degreaser
- country of origin:USA
9.2

Excellent

Our Rating

9.9
deep clean

9.3
Simple to use

9.3
Simple to take off
5

KRAKEN BOND

KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay, Gunk, and Motor | 2 Pack
8.9

Very Good

Our Rating
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6

KRAKEN BOND

KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay, Gunk, and Motor | 2 Pack
8.6

Very Good

Our Rating
7

WD-40 Specialist
WD-40 Specialist Machine & Engine Degreaser Foaming Spray, 18 OZ
Main highlights

Powerful Degreasing Performance
Removes oil, dirt, grime, and grease effectively from machinery and engines.

Versatile Application Areas
Ideal for auto engines, industrial machinery, and farm equipment cleaning.

Highly Praised Effectiveness
Customers appreciate its ability to clean with minimal effort.
Key specs
- size:3 x 3 x 10 inches
- application:Auto, truck engines
- cleaning method:Foaming spray
- usage:Engine degreaser
- country of origin:China
8.5

Good

Our Rating
8

WD-40 Specialist
WD-40 Specialist Machine & Engine Degreaser Foaming Spray, 18 OZ
Main highlights

Powerful Degreasing Performance
Removes oil, dirt, grime, and grease effectively from machinery and engines.

Versatile Application Areas
Ideal for auto engines, industrial machinery, and farm equipment cleaning.

Highly Praised Effectiveness
Customers appreciate its ability to clean with minimal effort.
Key specs
- size:3 x 3 x 10 inches
- application:Auto, truck engines
- cleaning method:Foaming spray
- usage:Engine degreaser
- country of origin:China
8.4

Good

Our Rating
9

Zep

Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto, Marine, RV, & Home - 32 oz.
8.3

Good

Our Rating
10

Zep

Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto, Marine, RV, & Home - 32 oz.
8.2

Good

Our Rating

10 Best engine cleaners of 2026

1

Chromex Ultrasonic Carburetor & Engine Parts Cleaning Solution - Concentrated Degreaser for Aluminum, Brass & Steel - 1 Gallon

How do we rank?

How do we rank?

Analyzing top stores

2

Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037

9.7

9.3

9.1

3

Chemical Guys Signature Series Orange Degreaser Spray - Heavy Duty All Purpose Cleaner for Engines, Tires, Undercarriages, Tools and More, Professional Strength, Breaks Down Grease, Oil & Grime, 16 oz

9.9

9.3

9.3

4

Chemical Guys Signature Series Orange Degreaser Spray - Heavy Duty All Purpose Cleaner for Engines, Tires, Undercarriages, Tools and More, Professional Strength, Breaks Down Grease, Oil & Grime, 16 oz

9.9

9.3

9.3

5

KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay, Gunk, and Motor | 2 Pack

6

KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay, Gunk, and Motor | 2 Pack

7

WD-40 Specialist Machine & Engine Degreaser Foaming Spray, 18 OZ

8

WD-40 Specialist Machine & Engine Degreaser Foaming Spray, 18 OZ

9

Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto, Marine, RV, & Home - 32 oz.

10

Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto, Marine, RV, & Home - 32 oz.

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