11 Best Engine Degreasers of 2021

Jerry Wilson
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Engine degreasers are great cleaning products that are formulated to cut through the toughest grease, road grime and grime that you encounter from working under the hood.

If you’re looking for the best degreasers to make your car engines shine like new, you’re going to want to know what to look for when browsing the market for one that fits your needs.

I’ve compiled a list of the most popular and best engine degreasers of the year so that you don’t have to waste your time and effort testing them out.

Every degreaser that I’ve featured is a trusted brand and comes with excellent ratings and reviews. These degreasers are powerful enough to tame even the dirtiest engine combinations.

If you’re looking to take care of your car the way it deserves, this list will help you narrow down your options.

Click here to see the 11 best engine degreasers of 2021.

NameCategoryProduct
Chemical Guys CLD_201_16 Signature Series Orange DegreaserBest OverallChemical Guys CLD_201_16 Signature Series Orange Degreaser
Oil Eater Original 1 Gallon Cleaner/DegreaserBudget PickOil Eater Original 1 Gallon Cleaner/Degreaser
MEGUIAR'S D10801 Super DegreaserUpgrade PickMEGUIAR'S D10801 Super Degreaser

1. Chemical Guys CLD_201_16 Signature Series Orange Degreaser

Our rating: 9 / 10

Chemical Guys CLD_201_16 Signature Series Orange Degreaser

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2. MEGUIAR'S D10801 Super Degreaser

Our rating: 9 / 10

MEGUIAR'S D10801 Super Degreaser

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Pros:

  • Works on all surfaces
  • Contains Teflon for easy cleanup
  • Versatile
  • Larger size than some other brands
  • Affordable
  • Includes gloves
  • Biodegradable

Cons:

  • Doesn’t work well on glass
  • Smells strongly

The MEGUIAR’s D10801 Super Degreaser is my top pick as it contains super effective Teflon with built-in detergents that grab residue and grime like crazy. I even reviewed this product on Garage 56 and included it in my top 4 picks for engine degreasers. The formula is so powerful that you can remove tough grease and oil stains on concrete, rubber, plastic and more.

The product is a bit strong so you have to use protective gear. It’s not just safe for your hands, but also biodegradable, which is a big plus. This way, you can wash it down the drain, and it will break down in the water. The product comes in a 1-gallon jug so you don’t have to re-order a new bottle soon. If you have a large engine, you should go for the 5 or 10-gallon jug as this gallon will last you only a few sessions.

3. Gunk EB1CA 'Original Engine Brite' Engine Degreaser

Our rating: 9 / 10

Gunk EB1CA 'Original Engine Brite' Engine Degreaser

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Pros:

  • Easy to use
  • Does not contain any harmful chemicals
  • Safe for use on all car parts
  • Easy to clean and even restores paint
  • Affordable price
  • Does not harm rubber, plastic or vinyl
  • Does not contain any petroleum distillates
  • Easy to apply formula
  • Sprays on clear
  • Concentrated solution

Cons:

  • You may need to clean again with an oil soap
  • May foam up and sticky residue remains
  • May not work as well on old engines
  • Can removing all grease or oil deposits

4. SuperClean Multi-Surface All Purpose Cleaner Degreaser Spray

Our rating: 8 / 10

SuperClean Multi-Surface All Purpose Cleaner Degreaser Spray

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Pros:

  • Works with a wide variety of surfaces
  • Versatility: Can be used for car, household, and other clean-up tasks
  • Biodegradable formula
  • Saves time and labor costs
  • No harsh chemicals and VOCs

Cons:

  • Works best with rough surfaces
  • Can smell a bit harsh if sprayed too close
  • Some users did not find it effective

If you are looking for a no-nonsense degreaser in a spray bottle, you might consider the SuperClean Multi-Surface All Purpose Cleaner Degreaser Spray. Made from concentrate, this product can be diluted to 2 gallons or 1 quart of solution.

The product works on a variety of surfaces including cars, kitchen sinks, tiles, bathtubs and hardwood floors. It is also safe to use on kitchenware and other surfaces made of porcelain, ceramic, glass, chrome, iron, stainless steel, copper, and brass.

The product also features a pleasant but not overpowering citrus scent which is not as harsh as some of its competitors. The scent does not leave a trail of fragrance in your home the way some other strong, chemical-based products do.

5. Oil Eater Original 1 Gallon Cleaner/Degreaser

Our rating: 8 / 10

Oil Eater Original 1 Gallon Cleaner/Degreaser

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Pros:

  • Available in 1-gallon container
  • Effectively dissolves grease and grime
  • Has a pleasant scent
  • Biodegradable
  • Comes with a spray nozzle
  • Comes in a variety of colors

Cons:

  • Cleansers with cresol as a base can be harmful.
  • Can make your clothes smell like kitchen grease.

The Oil Eater Original 1-gallon cleaner is my most-recommended cleaner for oily rags & other surfaces. It has a pleasant, light scent, and its consistency is user friendly.

This cleaner is a bit pricey but a little does go a long way, making it well worth the cost. It is a strong degreaser that won’t damage the surface it’s being used on. Avoid using this cleaner on carpets or any delicate surfaces.

Because of the consistency of the degreaser, it can get into your pores, which may cause itching. This can only be solved by a thorough shower, and not with a quick dip in the pool.

6. CRC 05027 Citrus Engine Degreaser

Our rating: 7 / 10

CRC 05027 Citrus Engine Degreaser

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It is a question common to almost every automobile owner. What do you use to clean your engine?

This tells you something very important about your engine: It is filthy.

You can honestly expect modern engines to be quite clean. Engine oil helps keep everything lubricated. It has additives that help reduce friction in the engine, and it keeps heat under control and water in suspension.

7. Spray Nine 22732 Grez-Off Heavy Duty Degreaser

Our rating: 6 / 10

Spray Nine 22732 Grez-Off Heavy Duty Degreaser

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Pros:

  • Great for extremely greasy surfaces
  • Tactical spray is great for getting into awkward places
  • Even works on tough stains
  • Perfect for removing grease on cars, machinery, tools, kitchen surfaces, garage floors, floors, patios, grills, loading docks, machine shops, factories, concrete surfaces and more.

Cons:

  • Cannot be used in areas where volatile organic compounds are being used as it can help them ignite.

Spray Nine 22732 Grez-Off Heavy Duty Degreaser is the best product for taking care of very dirty and greasy surfaces. If you want to remove all the grease and nasty grime just grab the Spray Nine 22732 Grez-Off and efficiently clean your soiled surfaces.

This Spray Nine 22732 Grez-Off can also be used to remove carbon deposits from all of the engines in your house. When you are using a product which is made to clean metal it can be tricky to get some of the heavier messes out. But Spray Nine 22732 Grez-Off has got you covered.

8. KRUD KUTTER KK32 Original Concentrated Cleaner/Degreaser

Our rating: 6 / 10

KRUD KUTTER KK32 Original Concentrated Cleaner/Degreaser

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Pros:

  • Heavy-duty cleaner that works almost regardless of the mess you have.

You can take care of almost any mess with this degreaser. It even cleans up engines.

This grease fighting product can handle almost any engine and gets at every engine part. It’s powerful enough to get engine parts clean, but gentle enough to not break down the parts.

It removes grease, motor oil, and transmission fluid spills. All you need is a little elbow grease and a thermomoplylene wash mitt to get the job done.

9. Simple Green 19128 Crystal Industrial Cleaner/Degreaser

Our rating: 6 / 10

Simple Green 19128 Crystal Industrial Cleaner/Degreaser

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Pros:

  • Effective cleaner at an affordable price
  • Biodegradable

Simple Green is a household name when it comes to degreasers and industrial cleaners. It’s popular for a number of reasons. It’s effective at removing grease, it’s biodegradable, and it’s affordable.

The formula in this product is a non-ionic surfactant, which is the main ingredient that makes it work so well. The formula is Alkyl Dimethyl Ether. This surfactant has a strong attraction to oil and is the main component behind why it works so well.

One important thing to note about this product is that it’s not the safest on painted surfaces. After using Simple Green, you want to rinse your surface well to ensure it’s clean. It’s always good practice to have an extra set of gloves on hand as well.

10. Purple Power

Our rating: 6 / 10

Purple Power

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Pros:

  • Well-known strong and long-lasting industrial-strength cleaner
  • Safe for a number of applications
  • Very easy to use
  • Excellent degreaser and effective at removing oil, grease, or tar
  • Prevents corrosion of metal surfaces
  • Chemical-free so won’t eat away at surfaces

Purple Power, like its name suggests, is a powerful degreaser and cleaner made to remove stains and dirt from most surfaces. It can even clean surfaces that many other cleaners wouldn’t be able to touch. This product is a must for your home workshop because it is a strong, heavy-duty cleaner that effectively dissolves grease and oil.

This 1 gallon spray bottle is a concentrated formula that doesn’t need to be mixed. It cleans without harsh fumes that will result in injury. Be careful though however because this product has a strong odor that can easily be detected in the air. It is best used outdoors or in a well-ventilated area to avoid the risk of inhaling harmful fumes.

This product is made from natural ingredients and contains no caustic chemicals or noxious fumes. It is excellent at cleaning kitchen and bathroom surfaces, removing grease and oil from cookware, and cleaning barbeque grills.

11. Citrus Magic Heavy Duty Cleaner/Degreaser

Our rating: 5 / 10

Citrus Magic Heavy Duty Cleaner/Degreaser

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Pros:

  • Non-aerosol
  • 32 fl oz bottle
  • Stays in liquid form on contact with engine grease
  • No caustic fumes
  • Comes with 3 microfiber clothes

Cons:

  • Not as effective on transmission gears and cases
  • May cause overspray

With a simple squeeze and pull, the Citrus Magic Heavy Duty Cleaner will start foaming with citrus power, effortlessly removing heavy road grime and grease. No other degreaser can do the same without resorting to harmful chemicals.

Think about the damage oil-based degreasers can inflict on your engine and mobile parts. Citrus Magic Cleaner Degreaser will make any engine shine like the day you bought it by gently lifting away grime with natural citrus power. Use it once to enjoy the citrus scent all day, every day.

It has a pH of 8.5, which isn’t acidic at all, making it great for use on your OEM parts. Customers love how the spray sprayer won’t cause overspray, making the use of a microfiber towel to simply wipe excess product off even easier.

Frequently Asked Questions (FAQ)

Which engine degreaser is best?

If you want something that will be able to tackle even the most difficult of jobs and scrub your engine clean, then you’ll probably want to invest in a good high-performance degreaser. This type of degreaser can get even the most difficult of grease, smoke, oil and grime off of surfaces. However, it will be more expensive than other types of degreasers.

On the other hand, you can also opt for a degreaser that you just might have lying around the house. While it may not work quite as effectively as the high-performance variety, a good household degreaser can still get the job done fairly well. You just may have to scrub a bit harder to get your engine clean.

What is the strongest degreaser on the market?

As all-around products, this is the strongest degreaser, which is enough to clean and disinfect the hard surfaces in your house, as well as to remove the dirt, grease, and even oil stains. It will help you to clean the fabric, leather, carpet, and upholstery, and it will also deep cleanse the floor. Its natural ingredients will not leave any toxic residues, which is good if you intend to use this degreaser to clean the inside of your house.

Because this is a blend of sunflower and alkyphenol ethoxylate surfactants, there is no question that it is one of the strongest degreasers on our list. It is biodegradable and will not irritate your skin. It is also a great value.

Which is better simple green or purple power?

Okay, so right of the bat this is a comparison we'd love to see some actual testing on. These are two very different products. Simple Green is a heavy duty cleaner that works by breaking down oils, organic material, and grease. On the other hand, Purple Power is a heavy duty degreaser that works by breaking down oil, grease, and various pieces of gooey-organic-type-whatever.

Obviously, these products will handle different cleaning situations. So, which one is better?

Simple Green vs. Purple Power Head to Head

Let's put these products against each other in a battle for the ages to see exactly how they perform- and how they overlap. Purple Power seems to do a better job cleaning grime, oil, and grease. Simple Green seems to be stronger when it comes to sanitizing and disinfecting.

What is the best degreaser for concrete?

In short, you'll need a concrete degreaser that works quickly and only on the surface of concrete. Concrete degreasers aren't to be used on the entire structure, but a specific location such as the rusty anchor of a boat.

There are many different brands and formulas for concrete degreasers, but we think Xtreme Concrete Stain and Heavy Duty Degreaser works perfectly. This product works fast, and specifically delivers an acidic solution that only targets the mold or moss on concrete.

Concrete Stain Remover – This is a popular degreaser that you can find any hardware store. The brand name is Evergreen, and they are available in various sizes. This is a good solution for cleaning concrete. It’s recommended you dilute the solution 1:1 with water before applying it.

Conclusion

A degreaser is a heavy-duty detergent that removes contaminants from the floor or a surface on which it's sprayed. Degreasers are used primarily for situations that are especially problematic for household cleaning products, such as oil stains on garage floors, water spots on wood floors, black streaks on driveways, soils on concrete ramps, and dried grease on stainless steel. This review will help you choose the best engine degreaser based on what your needs are.

Our Recommendation

NameCategoryProduct
Chemical Guys CLD_201_16 Signature Series Orange DegreaserBest OverallChemical Guys CLD_201_16 Signature Series Orange Degreaser
Oil Eater Original 1 Gallon Cleaner/DegreaserBudget PickOil Eater Original 1 Gallon Cleaner/Degreaser
MEGUIAR'S D10801 Super DegreaserUpgrade PickMEGUIAR'S D10801 Super Degreaser