10 Best engine cleaners of 2025

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Best Choice

1

Berryman

Berryman B-12 Multi-Purpose Carburetor and Fuel System Cleaner and Degreaser Industrial Strength, Heavy-Duty, Aerosol Spray - 20 oz. (Pack of 12)
9.7

Exceptional

Our Rating
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Value for Money

2

P21S
P21S 13001B Auto Wash W/Sprayer, 1000 ml, White
Main highlights

Key Features
Powerful multi-tasking cleaner, effortlessly tackles tough stains, and leaves a refreshing orange scent. Ideal for deep cleaning needs.

Ideal Use Cases
Perfect for kitchen messes, bathroom grime, and stubborn stains on hard surfaces. Enhances cleanliness and ambiance with its fresh scent.

Customer Reviews
Highly praised for its effectiveness on tough stains and the pleasant, lingering orange aroma that refreshes the cleaned spaces.
9.6

Exceptional

Our Rating

9.7
Aroma

9.5
Simple to use

9.1
worth the money
3

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
9.5

Excellent

Our Rating
4

Gunk
Gunk FEB1 Foamy Engine Brite Engine Degreaser - 17oz.

17% Off
Main highlights

No Scrubbing Needed
This product effectively removes grease, dirt, and grime from most engines without the need for scrubbing, making it a convenient cleaning solution.

Ideal for Engine Cleaning
Best used for cleaning engine components, including those of cars like the Honda Fit and Ford Focus, as well as lawnmower motors.

Highly Effective on Grease
Customers consistently praise its ability to remove grease and grime efficiently, leaving engine parts looking almost new with minimal effort.
9.4

Excellent

Our Rating

9.7
Simple to use

9.3
worth the money

8.7
Simple to clean
5

KRAKEN BOND

KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay, Gunk, and Motor | 2 Pack
9.1

Excellent

Our Rating
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6

Griot's Garage
Griot's Garage Engine Cleaner for Car, Motorcycle, Boat, RV, and Truck, Oil, Dirt, and Grime Remover, 11158, One Gallon
Main highlights

Loosens and Breaks Up Grease
The Griots Garage 11158 Engine Cleaner effectively loosens and breaks up grease, grime, and engine gunk, ensuring a thorough clean.

Ideal for Engine Cleaning
Perfect for cleaning engine parts and readying your powerplant for dressing, ideal for vehicles subjected to dirt and dust.

Ease of Use
Customers commonly praise its ease of use, highlighting the simple spray-on, agitate, and wipe clean application process.
8.9

Very Good

Our Rating

9.7
Aroma

9.5
Simple to use

9.3
worth the money
7

SONAX
SONAX Engine Cleaner | Powerful Engine Degreaser for Oil & Grease Removal | Safe on Metal, Plastic & Rubber | Phosphate & Solvent-Free Formula | Deep-Cleaning for Hard-to-Reach Areas | 543200 | 500 ml
Main highlights

Powerful Formula
Perfect for removing the toughest oil, grease, and dirt from engines.

Ideal Use for Engine Cleaning
Best for deep cleaning car engines and machine parts.

Customer Praised Performance
Highly effective on plastic components with minimal scrubbing.
8.8

Very Good

Our Rating

9.3
Simple to use

8.4
worth the money
8

3D
3D Grand Blast Engine Degreaser – Heavy Duty Biodegradable Cleaner for Engines, Wheels, Exhausts & More – Fast-Acting, Non-Staining – Made in USA – 1 Gallon
Main highlights

Powerful Degreasing Action
3D Grand Blast is a heavy-duty degreaser that effectively removes tough dirt, grease, and grime.

Versatile Cleaning Applications
Ideal for cleaning engines, machinery, tools, and floors in both commercial and home settings.

Biodegradable Formula Praised
Customers appreciate its biodegradable, easy-rinse formula that leaves no strong chemical smell.
8.7

Very Good

Our Rating

9.9
Simple to use

9.5
worth the money

8.7
Aroma
9

WASH&WHIPS
WASH&WHIPS Green Hell Engine Machine Cleaner & Degreaser - Car Engine Detailing Professional Strength Cuts Through Grime, Grease, Oil, Debris & Build-up, 16 fl oz
Main highlights

Tough on Grime
Green Hell cuts through grease, grime, and oil with a professional-strength formula, restoring shine without damaging your engine.

Ideal for Engine Maintenance
Perfect for cleaning engines, machinery, tools, and floors; suitable for both commercial and home use.

Highly Effective Degreaser
Customers praise its ability to remove stubborn grease and grime efficiently, with minimal scrubbing needed.
8.5

Good

Our Rating

9.5
Simple to use

8.4
worth the money

8.0
Aroma
10

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
8.3

Good

Our Rating

9.7
Simple to use

9.3
worth the money

9.1
Sheerness

10 Best engine cleaners of 2025

1

Berryman B-12 Multi-Purpose Carburetor and Fuel System Cleaner and Degreaser Industrial Strength, Heavy-Duty, Aerosol Spray - 20 oz. (Pack of 12)

How do we rank?

How do we rank?

Analyzing top stores

2

P21S 13001B Auto Wash W/Sprayer, 1000 ml, White

9.7

9.5

9.1

3

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

4

Gunk FEB1 Foamy Engine Brite Engine Degreaser - 17oz.

9.7

9.3

8.7

5

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

6

Griot's Garage Engine Cleaner for Car, Motorcycle, Boat, RV, and Truck, Oil, Dirt, and Grime Remover, 11158, One Gallon

9.7

9.5

9.3

7

SONAX Engine Cleaner | Powerful Engine Degreaser for Oil & Grease Removal | Safe on Metal, Plastic & Rubber | Phosphate & Solvent-Free Formula | Deep-Cleaning for Hard-to-Reach Areas | 543200 | 500 ml

9.3

8.4

8

3D Grand Blast Engine Degreaser – Heavy Duty Biodegradable Cleaner for Engines, Wheels, Exhausts & More – Fast-Acting, Non-Staining – Made in USA – 1 Gallon

9.9

9.5

8.7

9

WASH&WHIPS Green Hell Engine Machine Cleaner & Degreaser - Car Engine Detailing Professional Strength Cuts Through Grime, Grease, Oil, Debris & Build-up, 16 fl oz

9.5

8.4

8.0

10

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

9.7

9.3

9.1

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