10 Best Engine Cleaners: Top Picks for Smooth, Shiny Engines

What are the best engine cleaners?
We offer honest recommendations from tested top picks to help keep your car’s engine running smooth and looking great.

Engine cleaners help keep cars running smooth and looking great. We tested top picks to find the best ones for tough jobs.

One user said the spray made their old truck’s engine shine like new in minutes. You can count on our guide for honest picks that work. Read on to see which cleaner fits your needs best.

List of Top 10 Engine Cleaners

Image Title Best For Price
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 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

This degreaser spray is perfect for car enthusiasts, truck owners, and motorcycle riders who want to clean tough grease from engines, tires, and tools. It’s also ideal for professional detailers and shop workers who need a strong cleaner for jobs in garages and homes.

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

This degreaser is perfect for mechanics and machinery workers. It helps auto fixers and farm hands spray away grease with ease.

KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Degreaser for Engine Bay, Gunk, and Motor | 2 Pack KRAKEN BOND Engine Cleaner Spray – (2×12.3 fl. Oz) Degreaser for Engine Bay, Gunk, and Motor | 2 Pack

This engine cleaner spray is perfect for car owners who want to remove dirt and gunk from their engine bay. It’s also great for motorcycle riders and people with lawnmowers or other machines.

CRC 05483 Heavy Duty Pro-Strength Degreaser, 20 Wt Oz, [1 Pack] CRC 05483 Heavy Duty Pro-Strength Degreaser, 20 Wt Oz, [1 Pack]

This degreaser is perfect for anyone needing a powerful cleaner. It’s great for cars, machines, and other tough jobs.

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

This engine cleaner is perfect for anyone who wants a clean engine. It is great for cars, motorcycles, boats, RVs, and trucks.

hepanio 3Pcs Catalytic Converter Cleaner,Catalytic Converter Cleaner Kit,Auto Parts Engine,Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil,Fuel System Treatment Oil Additive hepanio 3Pcs Catalytic Converter Cleaner,Catalytic Converter Cleaner Kit,Auto Parts Engine,Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil,Fuel System Treatment Oil Additive

This product is perfect for car owners with high-mileage vehicles who want to cut carbon build-up and boost fuel efficiency. It suits DIY drivers who seek easy maintenance for smooth engine performance without a mechanic.

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

This 3D Grand Blast Engine Degreaser is perfect for car lovers. It’s also great for anyone who wants a clean engine without a lot of work.

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 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

This powerful engine cleaner is perfect for car lovers and DIY mechanics who want a spotless engine without harsh stuff. It’s also great for pro detailers needing a safe, deep clean on tough spots.

3D Orange Degreaser – Citrus-Based Car Cleaner for Oil, Grease, Grime & Adhesives – Water-Based, Non-Corrosive, Eco-Friendly, Interior & Exterior Use - 16 Fl oz 3D Orange Degreaser – Citrus-Based Car Cleaner for Oil, Grease, Grime & Adhesives – Water-Based, Non-Corrosive, Eco-Friendly, Interior & Exterior Use – 16 Fl oz

3D Orange Degreaser is perfect for car owners who want a strong, safe cleaner for greasy engine parts and sticky interiors. It’s also ideal for professional detailers who need a water-based option that works on metal, plastic, and leather without leaving marks.

Gumout 800002231 Carb/Choke Carburetor Cleaner Spray, Carb Intake Valve Cleaner, Cleans Gum, Varnish & Dirt Inside & Outside Carburetor Chamber & Prevents Future Build Up Saving on Fuel Economy 14Oz. Gumout 800002231 Carb/Choke Carburetor Cleaner Spray, Carb Intake Valve Cleaner, Cleans Gum, Varnish & Dirt Inside & Outside Carburetor Chamber & Prevents Future Build Up Saving on Fuel Economy 14Oz.

This car cleaner is perfect for car owners who deal with rough idling or hard starting in their vehicles. It’s also ideal for mechanics who need a quick-drying spray to clean gum and varnish from carburetors and boost engine performance.

Detailed Reviews

Discover the top 10 engine cleaners handpicked by experts and loved by users for their power and ease. These sprays tackle tough grease and oil buildup on engines, tires, and tools with speed and care. Trust our guide to point you to the perfect match for your car care needs, no guesswork required. Dive in now to unlock cleaner engines and smoother rides that shine.

1. 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

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

Tackle tough grease with the Chemical Guys Signature Series Orange Degreaser Spray. This heavy duty cleaner breaks down oil and grime fast. It works great on engines, tires, and tools.

Use it full strength or mix with water for easy cleaning. This spray restores surfaces to look new.

Grab a bottle today and see the difference. Your car parts will shine again. Clean with confidence using this pro tool.

Pros Cons
  • Powerful degreaser for tough jobs.
  • Cleans engines, tires, and tools easily.
  • Safe for multiple surfaces.
  • Easy spray application for fast results.
  • Leaves a fresh orange scent.
  • May require dilution for lighter tasks.
  • Strong scent might not suit everyone.
  • Could be too powerful for delicate surfaces.

Perfect For:

This degreaser spray is perfect for car enthusiasts, truck owners, and motorcycle riders who want to clean tough grease from engines, tires, and tools. It’s also ideal for professional detailers and shop workers who need a strong cleaner for jobs in garages and homes.

Ready to Purchase?

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

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

This powerful degreaser is perfect for cleaning your machines and engines. It removes oil, dirt, grime, and grease easily.

The foaming spray gets into all the tight spots. It leaves no messy residue. Your equipment will be sparkling clean!

Pros Cons
  • Powerful cleaner removes tough grease and dirt.
  • Foaming spray sticks and cleans deep.
  • Sprays up to 5 feet for extra reach.
  • Low-residue formula leaves engines shiny.
  • Beats top rivals in lab tests.
  • Water-based formula is not ideal for heavy grease.
  • Foam sticks and may create messy cleanup.
  • Small 18 oz can runs out quickly on big jobs.

Perfect For:

This degreaser is perfect for mechanics and machinery workers. It helps auto fixers and farm hands spray away grease with ease.

Ready to Purchase?

3. KRAKEN BOND Engine Cleaner Spray – (2×12.3 fl. Oz) Degreaser for Engine Bay, Gunk, and Motor | 2 Pack

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

KRAKEN BOND Engine Cleaner Spray comes in a 2-pack of 12.3 fl. oz bottles. It blasts away burned oil, gunk, and dirt from your engine bay fast.

Spray it on cold parts and wipe with a microfiber cloth. It works on cars, motorcycles, lawnmowers, and more. This safe, strong degreaser protects electronics and the environment too.

Pros Cons
  • Removes tough oil and dirt effectively.
  • Easy to use and works quickly.
  • Suitable for all engine types and safe.
  • Protects and brightens your engine bay.
  • Hot engines are a no-go for application.
  • May need a microfiber towel for tough spots.

Perfect For:

This engine cleaner spray is perfect for car owners who want to remove dirt and gunk from their engine bay. It’s also great for motorcycle riders and people with lawnmowers or other machines.

Ready to Purchase?

4. CRC 05483 Heavy Duty Pro-Strength Degreaser, 20 Wt Oz, [1 Pack]

CRC 05483 Heavy Duty Pro-Strength Degreaser, 20 Wt Oz, [1 Pack]

CRC Heavy Duty Pro-Strength Degreaser fights tough gunk and grease on cars, trucks, and machines. It uses a foaming water-based spray that works hard without any bad smell.
This degreaser works great on metal surfaces, painted parts, and heavy equipment. It comes in a 20 ounce can ready for easy use. CRC products keep your gear running smooth and clean.

Pros Cons
  • Tough on grease but gentle to use.
  • No bad smells from chemicals.
  • Works great on cars and machines.
  • Safe formula for many surfaces.
  • Trusted brand for quick cleaning.
  • Aerosol spray may harm environment with fumes.
  • Only 20 oz size could run out on big jobs.
  • Might need rinsing after use for best results.

Perfect For:

This degreaser is perfect for anyone needing a powerful cleaner. It’s great for cars, machines, and other tough jobs.

Ready to Purchase?

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

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

Tired of a dirty engine? Griot’s Garage Engine Cleaner is here to help!

This cleaner is easy to use. It removes oil, dirt, and grime. Your engine will look brand new!

Pros Cons
  • Breaks down tough grease and dirt fast
  • Spray and wipe for easy cleaning
  • Works on many engine parts
  • Makes your engine look brand new
  • Professional formula for great results
  • Strong cleaner may need rinsing after use.
  • Lasting scent could stick around.

Perfect For:

This engine cleaner is perfect for anyone who wants a clean engine. It is great for cars, motorcycles, boats, RVs, and trucks.

Ready to Purchase?

6. hepanio 3Pcs Catalytic Converter Cleaner,Catalytic Converter Cleaner Kit,Auto Parts Engine,Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil,Fuel System Treatment Oil Additive

hepanio 3Pcs Catalytic Converter Cleaner,Catalytic Converter Cleaner Kit,Auto Parts Engine,Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil,Fuel System Treatment Oil Additive

Hepanio Catalytic Converter Cleaner keeps your engine running like new. It breaks down carbon deposits in fuel systems and exhaust parts. You get better fuel efficiency, smoother driving, and fewer problems.

This kit works on gasoline, diesel, hybrid, and flex-fuel cars. Just pour one bottle into your tank—no tools needed. Your car starts easier and runs stronger.

It cuts down on repair costs over time. Drive with confidence knowing your vehicle’s at its best.

Pros Cons
  • Improves your car’s fuel efficiency.
  • Boosts overall engine performance easily.
  • Safe for all fuel types.
  • Simple to use, no mechanics needed.
  • Reduces your maintenance costs.
  • Repeated use needed for lasting results
  • Higher costs from frequent applications
  • Results vary by engine condition

Perfect For:

This product is perfect for car owners with high-mileage vehicles who want to cut carbon build-up and boost fuel efficiency. It suits DIY drivers who seek easy maintenance for smooth engine performance without a mechanic.

Ready to Purchase?

7. 3D Grand Blast Engine Degreaser – Heavy Duty Biodegradable Cleaner for Engines, Wheels, Exhausts & More – Fast-Acting, Non-Staining – Made in USA – 1 Gallon

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

The 3D Grand Blast Engine Degreaser is a strong cleaner made just for tough jobs. It wipes away oil and grease from engines, wheels, and exhausts. Plus, it’s safe on metal, plastic, and paint.

This formula breaks down grime fast without leaving marks. It’s easy to use and works in your garage or shop.

Made in the USA, it powers through dirt without harming the earth. DIY users and pros both trust it for top results.

Pros Cons
  • Tough grease melts away fast
  • Safe on engines and wheels
  • No scrubbing, just quick rinses
  • Eco-friendly for the planet
  • USA-made by car experts
  • May require multiple applications for heavy buildup
  • Not effective on certain stubborn stains
  • Price could be higher than basic options

Perfect For:

This 3D Grand Blast Engine Degreaser is perfect for car lovers. It’s also great for anyone who wants a clean engine without a lot of work.

Ready to Purchase?

8. 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

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

SONAX Engine Cleaner blasts away tough oil and grease from engines and tools. It stays safe on metal, plastic, and rubber without causing harm.
This formula lacks phosphates and solvents for eco-friendly cleaning. It digs deep into hard-to-reach spots for full results. Use it for engine care and follow with a trim detailer for shine.

Pros Cons
  • Blasts away tough oil and grease fast.
  • Safe for metal, plastic, and rubber parts.
  • Eco-friendly without phosphates or solvents.
  • Reaches hard-to-reach areas with ease.
  • Restores engine shine for easy care.
  • Strong scent may linger after use
  • Requires full rinsing to avoid residue
  • Messy spray causes drips and splatters

Perfect For:

This powerful engine cleaner is perfect for car lovers and DIY mechanics who want a spotless engine without harsh stuff. It’s also great for pro detailers needing a safe, deep clean on tough spots.

Ready to Purchase?

9. 3D Orange Degreaser – Citrus-Based Car Cleaner for Oil, Grease, Grime & Adhesives – Water-Based, Non-Corrosive, Eco-Friendly, Interior & Exterior Use – 16 Fl oz

3D Orange Degreaser – Citrus-Based Car Cleaner for Oil, Grease, Grime & Adhesives – Water-Based, Non-Corrosive, Eco-Friendly, Interior & Exterior Use - 16 Fl oz

3D Orange Degreaser is a citrus-based cleaner for cars. It cuts through oil, grease, grime, and adhesives fast.

This water-based formula is safe for vinyl, plastic, cloth, metal, leather, and more. It leaves no film or stains behind. Made in the USA, it gives pro results without harm.

Pros Cons
  • Cuts tough grease fast with citrus power.
  • Safe on all surfaces like vinyl and metal.
  • Leaves no residue or sticky film behind.
  • Non-corrosive formula protects paint and trim.
  • Made in USA by car care experts.
  • May require multiple applications for tough stains.
  • Strong scent might bother some users.
  • Not effective on all types of adhesives.

Perfect For:

3D Orange Degreaser is perfect for car owners who want a strong, safe cleaner for greasy engine parts and sticky interiors. It’s also ideal for professional detailers who need a water-based option that works on metal, plastic, and leather without leaving marks.

Ready to Purchase?

10. Gumout 800002231 Carb/Choke Carburetor Cleaner Spray, Carb Intake Valve Cleaner, Cleans Gum, Varnish & Dirt Inside & Outside Carburetor Chamber & Prevents Future Build Up Saving on Fuel Economy 14Oz.

Gumout 800002231 Carb/Choke Carburetor Cleaner Spray, Carb Intake Valve Cleaner, Cleans Gum, Varnish & Dirt Inside & Outside Carburetor Chamber & Prevents Future Build Up Saving on Fuel Economy 14Oz.

Is your car struggling? Gumout Carb/Choke Cleaner is the answer. It helps your car start and run better.

This cleaner removes nasty gunk from your carb. It makes your engine perform at its best. You will also save on fuel.

It’s easy to use and works fast. Get your car running smoothly today.

Pros Cons
  • Fixes hard starts and rough idling fast.
  • Removes gum and varnish from carburetors.
  • Boosts engine performance and fuel economy.
  • Dries quickly on metal parts.
  • Stops stalling and high emissions.
  • Strong fumes irritate eyes and nose.
  • Not safe for painted metal parts.
  • Needs good ventilation for safe use.

Perfect For:

This car cleaner is perfect for car owners who deal with rough idling or hard starting in their vehicles. It’s also ideal for mechanics who need a quick-drying spray to clean gum and varnish from carburetors and boost engine performance.

Ready to Purchase?

Buying Guide

Engine cleaners remove dirt and grime from car engines. They help improve performance and appearance. Pick the right one for easy cleaning.

One user shared their story. They sprayed cleaner on an old truck engine. It shone like new in just minutes.

Effectiveness: A good engine cleaner cuts through tough grease and oil fast. It should leave surfaces shining clean. Look for products that dissolve grime quickly.

Safety: Choose cleaners that are safe on metal, plastic, and rubber. They should not harm electronics or painted parts. Check for non-corrosive formulas.

Ease of Use: The cleaner should have a spray or foam for easy application. It works on cold engines without much effort. Some allow mixing with water for rinsing.

Environmental Impact: Pick biodegradable options that are phosphate-free and solvent-free. These help protect the earth. Avoid products that leave harmful residues.

Versatility: A versatile cleaner works on engines, tires, tools, and more. It suits cars, trucks, and motorcycles. Ideal for heavy equipment or household machines.

Packaging and Size: Consider bottle sizes like 16 oz or 1 gallon for your needs. Smaller packs offer easy storage. Larger ones are good for big jobs.

Cost: Compare prices for value. Cheaper options may still be effective. Budget for professional strength if needed.

User Reviews: Read feedback from users. See how they rate cleaning power and results. Trust guides that highlight honest picks.