Engine Compartment Cleaners of 2025

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Last Updated - March 13, 2025

Best Choice

1

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

9.7 Aroma

9.5 Simple to use

9.1 worth the money

Why we love it

Multi tasking: Clean, remove stains.

Fresh orange scent.

Lightweight 1.225kg .
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.
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9.8

Exceptional

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Value for Money

2

3D
3D Grand Blast Heavy Duty Degreaser - All Purpose Cleaner Safe & Effective for Cars, Engines, Floors, Home Use - Rapidly Cleans Grease & Grime Build Up 1 Gallon

9.9 Simple to use

9.5 worth the money

8.7 Aroma

Why we love it

Biodegradable and safe for home use.

Effectively removes tough grease and grime.

Leaves surfaces shiny and like new.
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.
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9.5

Excellent

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3

Chemical Guys
Chemical Guys Signature Series Orange Degreaser, Heavy-duty All-purpose Cleaner For Engines, Tires, Undercarriages & More, Professional Strength Formula, Breaks Down Grease, Oil & Grime - 128 fl oz

9.9 deep clean

9.3 Simple to use

9.3 Simple to take off

Why we love it

Powerful citrus-based cleaning action.

Versatile for multiple surfaces.

Highly concentrated for custom use.
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.
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9.4

Excellent

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4

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

Safety Protection: Contain ozone-friendly propellants that do not harm the environment. Harmless for electronic circuits. It will not harm the motor in any way. Aside from cleaning, it provides a wonderful view and protects the engine.
Quick & Effective: Using this engine brightener involves simply and quickly spraying it on the dirty area and taking a microfiber towel to it to help break up any stubborn solids. 𝗡𝗲𝘃𝗲𝗿 𝘀𝗽𝗿𝗮𝘆 𝘁𝗵𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝗼𝗻 𝗮 𝗵𝗼𝘁 𝗲𝗻𝗴𝗶𝗻𝗲.
Great Content: For particularly tough jobs, our engine degreaser offers super strength cleaner degreaser, and for the majority of vehicles, this original bright will get your under-hood area looking like new.
Engine Degreaser: Kraken Engine Cleaner is a great product for removing burned oil from around the edges of your valve covers or the dirt cooked onto the top of the engine cover.
All Types of Engines: It is suitable for automobiles, motorcycles, machines, and all types of engines, such as lawnmowers. Specifically designed to remove deposits that might cause rough idle, stalling, hesitation, pings, rust, dirt, and engine run-on.
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9.1

Excellent

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5

Griot's Garage
Griot's Garage 11158 Engine Cleaner Gallon 128 Fl Oz (Pack of 1)

26% Off

9.7 Aroma

9.5 Simple to use

9.3 worth the money

Why we love it

Effectively loosens and breaks up engine grime.

Simple spray-on, agitate, and wipe clean process.

Leaves engine parts ready for further treatment.
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.
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9.0

Excellent

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6

SONAX
SONAX Engine Cleaner - Engine Degreaser - Easy Engine Cleaner - Engine Cleaner Spray - Engine Bay Cleaner 543200 16.9 fl oz

9.3 Simple to use

8.4 worth the money

Why we love it

Effective on tough grease and grime.

Restores engine's original shine.

Easy application process.
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.
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8.9

Very Good

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7

Chemical Guys
Chemical Guys CLD_101_16 All Clean+ Citrus Based All Purpose Super Cleaner, Safe for Cars, Trucks, SUVs, Motorcycles, RVs & More, 16 fl oz, Citrus Scent

9.7 Long life

9.5 Simple to use

9.1 worth the money

Why we love it

Cleans away dirt, grime, and stains

Advanced cleaning formula

All
Main highlights

GENTLY CLEANSE JUST ABOUT ANY SURFACE - All Clean+ ships at full strength, and can be diluted to clean any automotive surface inside or out. Now you can clean carpets, tires, plastics, and engine bay parts with one advanced super cleaner
GENTLY CLEANSE JUST ABOUT ANY SURFACE - All Clean+ ships at full strength, and can be diluted to clean any automotive surface inside or out. Now you can clean carpets, tires, plastics, and engine bay parts with one advanced super cleaner
CITRUS BASED - When used as directed, the high-tech citrus-based cleaning formula removes filth and dirt without changing the surface texture or look on plastics, metals, paints, carpets, cloths, or rubber surfaces.
CITRUS BASED - When used as directed, the high-tech citrus-based cleaning formula removes filth and dirt without changing the surface texture or look on plastics, metals, paints, carpets, cloths, or rubber surfaces.
BLENDED WITH FOAMING TECHNOLOGY -All Clean+ is blended with foaming technology for a deep cleaning on any surface. Foam spreads into cracks and crevices to remove dirt and grime from hard to reach places.
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8.7

Very Good

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8

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

9.7 Simple to use

9.3 worth the money

8.7 Simple to clean

Why we love it

No scrubbing makes cleaning engines effortless.

Safe for all engine components, ensuring no damage.

Effectively removes grease, dirt, and grime easily.
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.
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8.6

Very Good

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9

Gunk
Gunk Foamy Engine Cleaner
Main highlights

Works on multiple vehicle types
Spray on, hose off, that’s it
Engines accumulate road grime, dirt, dust, & oil. This can cause your engine to run hotter and less efficient.
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8.4

Good

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10

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

15% Off

8.9 Simple to use

8.7 deep clean

8.0 worth the money

Why we love it

Highly effective on grease and oil stains.

Versatile for multiple surfaces and uses.

Biodegradable and environmentally friendly.
Main highlights

Powerful_Cleaning_Performance
Dissolves grease, oil, and dirt from any washable surface.

Versatile_Use_Cases
Ideal for cleaning floors, driveways, grills, and automotive parts.

Customer_Praised_Effectiveness
Highly effective at removing heavy-duty stains effortlessly.
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8.3

Good

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Engine Compartment Cleaners of 2025

1

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

Why we love it

2

3D Grand Blast Heavy Duty Degreaser - All Purpose Cleaner Safe & Effective for Cars, Engines, Floors, Home Use - Rapidly Cleans Grease & Grime Build Up 1 Gallon

Why we love it

3

Chemical Guys Signature Series Orange Degreaser, Heavy-duty All-purpose Cleaner For Engines, Tires, Undercarriages & More, Professional Strength Formula, Breaks Down Grease, Oil & Grime - 128 fl oz

Why we love it

4

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

5

Griot's Garage 11158 Engine Cleaner Gallon 128 Fl Oz (Pack of 1)

Why we love it

6

SONAX Engine Cleaner - Engine Degreaser - Easy Engine Cleaner - Engine Cleaner Spray - Engine Bay Cleaner 543200 16.9 fl oz

Why we love it

7

Chemical Guys CLD_101_16 All Clean+ Citrus Based All Purpose Super Cleaner, Safe for Cars, Trucks, SUVs, Motorcycles, RVs & More, 16 fl oz, Citrus Scent

Why we love it

8

Gunk FEB1 Foamy Engine Brite Engine Degreaser - 17oz.

Why we love it

9

Gunk Foamy Engine Cleaner

10

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

Why we love it

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