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Top 9 Best Engine Degreasers for Mild And Intense Cleaning

Top-9-Best-Engine-Degreasers-for-Mild-Intense-Cleaning

Top-9-Best-Engine-Degreasers-for-Mild-Intense-Cleaning

Cleaning a car engine should be every body’s business. Keeping your engine clean will not only make your daily driving safe and efficient, it will also add value to your car in case you resell it. You should learn to know more about engine degreasers from now on. You can read more about tips for your car The 10 Most Important Things to do for Your Car.

Unlike removing water spots on a car or removing bird poop stain, cleaning your engine is more complicated. But you can definitely do it by yourself with some enthusiasm on your part. The process of cleaning the exterior of your car engine is called de-greasing and there are several products that you can use to do it efficiently.

We will introduce you to some of the market’s best engine degreasers which you could order easily online and deliver to you free of charge. Car experts suggest that it is best to clean your engine and engine bay first before washing your car so you can ensure you wash and rinse off any degreaser (also knows as a solvent degreaser) that may reach painted components.

But before we start with the list, here’s some advice from the expert degreaser about this activity.

Best Engine Degreasers

Gunk EB1 One Each, 15 oz. Heavy Duty Engine degreaser Via: Amazon

How an engine degreaser works

A clean engine bay will make it easier for you or your trusted mechanic to do maintenance and repairs. A clean engine also runs better because it will have a lesser chance of getting moving parts and air intakes clogged of grease and other debris. That’s why it is best that you help your engine perform well on a long-term basis by keeping it clean and tidy. Moreover, a clean engine will allow you to easily notice issues (such as oil leak) earlier and fix them before they can pose a major problem. Solvent degreasers usually come in fluid form, although some products are in foam.

A degreaser works by loosening up the accumulated grease (or grime) on the engine and its parts (including hoses, valves, seals, and other moving and stationary parts). Before applying a degreaser, the engine should be run for at least 5 minutes to keep it warm (unless otherwise specified on your chosen degreasing product). A warmer engine will enable the degreaser to penetrate the stubborn grime more easily, thus, loosening it up quickly.

Soaking the grime and soot accumulating on the exterior of the engine for some time (5-10 minutes or longer) will make the degreaser more effective. When the dirt and grime are loosened up, you can wash the engine with warm water (you can use a garden hose to wash the engine). But be careful not to wet electrical lines (you can cover susceptible electrical cables before you wash the engine).

Types of engine degreaser

1. Petroleum-based

Petroleum-based degreasers are usually cheaper than water-based ones. These solvents are strong and powerful cleaners but can be more abrasive compared to the latter because of its strong chemical content. Some of these products (but not all) are harmful to plastics, chrome, painted surface, and aluminum (unless otherwise specified). If you use this type of cleaner, check first the instructions.

2. Water-based

This environment-friendly cleaner has water as one of its main ingredients. A water-based degreaser is milder and gentler to engine non-metal parts than petroleum-based cleaners. It is also as effective as a cleaning agent. However, the drawback is that this type of degreaser carries a higher price compared to petroleum-based products.

How to choose the best engine degreaser

There are many brands of engine degreaser out in the market, but there is surely one brand that will suit your engine and the parts associated with it. Here are some of the factors that you should consider before buying the perfect engine degreaser for your car:

1.

Surface application

Choose the best engine degreaser for your car by considering what type you should use: petroleum or water-based. If your engine has plastics, painted surfaces, and other parts that are not conducive for a strong degreaser, then you might consider using a water-based formula.

2.

Versatility

If you want an engine cleaner that can be used for other home applications aside from your engine, the product usually comes milder that works on a variety of surfaces. You can choose the one that has the better value with a wide range of application. But if you have an engine that has thick grime and rust (you might overlook the cleaning for a long time), it is better to use a petroleum-based one to assure a thorough cleaning.

3.

Smell

Most petroleum-based degreasers have a strong odor. If you don’t like the smell, you can use a dust mask to block the stingy odor or use a solvent degreaser with added perfume (such as the citrus-based kind, etc.) which is also water-based.

4.

Price

The last thing on your mind would be the price of the product that you intend to use. After considering the magnitude of the grime adhering to the engine and your available budget, find the best engine degreaser where it has the most cleaning power. Some products come in gallon-sized containers with surprisingly cheap prices. But check out each product’s capability in de-greasing your engine and settle for the one that matches your expectations.

Top 9 Ranked Engine Degreasers

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Best Engine Degreasers Gunk EB1 Engine Brite Original

The Gunk EB1 Engine Degreaser Original has a heavy-duty property for stuck up soiled grease, oil, and grime. This product has diverse applications which can be used for multiple types of vehicles other than your car. It can be used for ATVs, motorcycles, snowmobiles, and other similar engines. The product is designed for DIY enthusiasts which don’t need any other chemical for mixing as it is ready-to-use any time.

Pros

  • Comes in an easy-to-spray bottle.
  • Petroleum-based formula
  • Cleans and protect the engine
  • Could be sprayed in hard-to-reach areas of your engine
  • Can be used in other types of vehicles
  • A fast acting formula which removes tough grease
  • Rinses clean with water

Cons

  • When using this product, you can’t start your engine until it is properly rinsed.
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best Engine Degreasers UNK EB1CA 'Original Engine Brite'

The Original Engine Brite by Gunk works perfectly for your engine. This amazing engine degreaser is well-known for being tough on dirt, road grime, oil builds up, and stuck up grease. This product is designed for use on old engines with an extremely greasy state. The Gunk EB1CA is a long-lasting solution for a dirty engine with an affordable price.

Pros

  • Works well on just spraying on the engine
  • Can be used in other engines (such as RVs, ATVs, tractors, etc.)
  • Only needs 10-15 minutes of soaking time to be more effective.
  • Deep cleans unlike other brands.
  • Receptive for engine shine products to protect it from future dirt and grease build up

Cons

  • This is a flammable product and must be kept out of reach of children.
  • Needs hosing down of the engine with clean water to attain maximum effect
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best Engine Degreasers Chemical Guys Signature Series Orange Degreaser

If you want your engine to be both extra clean and aromatic at the same time, the Chemical Guy Signature Orange Degreaser is your guy. This citrus-based mild cleaner is perfect for a new car that had run less than 5,000 miles. But still, this orange degreaser on spray bottle is tough on oil, hard-headed grease and grime, and dirt and debris.

Pros

  • Comes with spray gun for a uniformed drizzle on an engine.
  • Handy and easy to grip.
  • Concentrated enough to be diluted to desired needs.
  • Breaks down dirt, oil, grime, and grease into very small particles for easy flushing.
  • Works best also for tires & rims and metal tools.
  • Does not damage electrical cables and engine seals

Cons

  • Comes in 16 oz bottle good only for 3 to 4 uses.
  • Exclusively for car use.
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best Engine Degreasers POR-15 40101 Cleaner Degreaser

If you really want the most value for your money, try the POR-15 Degreaser. This 1-gallon engine cleaner is both great for industrial and automotive use and comes highly concentrated. You can dilute the POR-15 with water up to ten times its volume and still retains its strength. Now, that’s what we call a higher potency on any surface. Moreover, this power degreaser can also be used in more surfaces, like wood, plastics, fiberglass, and painted surfaces without damaging them.

Pros

  • Ideal for oil removal.
  • Also works well against mildew, patina, soap films, wax, and mildew.
  • A water-based solution.
  • Removes a musty odor coming from the engine.
  • Non-flammable

Cons

  • You need to provide a spray bottle as its container.
  • More pricey compared to other brands but it will serve you longer.
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best Engine Degreasers 3D Grand Slam Engine Degreaser

If you want an all-natural and skin-friendly oil degreaser, you might consider the 3D Grand Slam. This all-purpose engine degreaser is non-toxic and has a biodegradable formula so you will not contribute to the destruction of the environment even if you use it more frequently. The water-based Grand Slam even works in floors, tools, and other surfaces, aside from being perfect for your engine.

Pros

  • Comes in a 1-gallon container.
  • Fully-concentrated.
  • Potency is up to 20 times its volume when mixed with water.
  • Safe to use in painted surfaces.
  • Made in the USA

Cons

  • Thorough washing of engine and other surfaces is needed for better results after application.
  • Requires at least 15 to 20 minutes soaking period for maximum results.
  • You need to have a separate water spray bottle for application.
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best Engine Degreasers Chemical Guys Grime Reaper Extremely Strong Degreaser

The Grime Reaper from Chemical Guys is not your usual mild engine cleaner. This monster is a very strong and highly concentrated formula that has no mercy with grime and grease. The fluid can be diluted with water up to 6 to 9 times its volume and still powerful enough to emulsify stubborn grease and dirt on your engine. But it can be easily flush out with water after application giving you an engine as shiny as new.

Pros

  • A water-based but a heavy-duty degreaser.
  • No residue or stain left when properly rinsed.
  • Can be used for tires, rims, and door jambs.
  • Ideal for a very filthy engine with soiled debris and grease.

Cons

  • Advisable for use by professionals only.
  • A formula that is stronger than acid so extreme caution should be observed when using.
  • A user needs to wear safety goggles and gloves when applying.
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best Engine Degreasers CarGuys Premium Wheel Cleaner

When you used to drive in cold weather, most grime and filth on your engine will be stubborn enough for cleaning. That is why you need a more suitable degreaser for this purpose. The CarGuys Premium Wheel Cleaner is just what you need on these circumstances. The wide array of uses of this environment-friendly (water-based) degreaser is what makes this solvent cleaner more popular to most car lovers in North America and Europe.

Pros

  • Ideal for emulsifying winter grime and corrosive road salt.
  • Perfect to use in cold weather.
  • Also applicable for use in chrome, anodized, aluminum, and alloy wheels.
  • Can be used in motorcycle and other engines.
  • Comes in 1-gallon container.
  • Fully-concentrated.
  • Made in the USA

Cons

  • More pricey compared to other brands.
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best Engine Degreasers Chemical Guys CLD_997 Diablo Gel Wheel and Rim Cleaner

The Chemical Guys CLD_997 Diablo Gel Wheel and Rim Cleaner is one of CLD_997’s fastest-selling brands in the market today. But what could you expect on this highly-concentrated solvent degreaser in a 1-gallon container? This amazing product is fast-acting and does not need more time to emulsify filth, grime, dirt, and grease from your engine. This highly concentrated product is not only safe to use on other surfaces, it is also left without residue, noxious fumes, and stains when washed out properly.

Pros

  • A water-based and environment-friendly formula.
  • Ideal for grease traps, holding tanks, and fuel tanks.
  • Can be utilized on other surfaces such as wood and plastics.
  • Easy to apply.
  • Can be diluted in water up to 10 times its volume without altering its potency.
  • Non-flammable formula.
  • Removes not only grease but also algae, mildew, and musty odors soap films wax.

Cons

  • Your purchase does not include a spray bottle.
  • Not advisable to use when children are around.
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best Engine Degreasers Meguiar's D10801 Super Degreaser

The Meguiar’s Detailer is what professionals prefer for auto detailing. This Super Degreaser is quite true to its name. This degreasing product is extremely concentrated, you can dilute it with water up to 10 times its volume without altering its potency.


You can probably find the D10801 Super Degreaser from Meguiar’s in every auto detailing shop in the city because of its versatile use. While it is ideal for your car, it can also be used for trucks, light trucks, vans, RVs, and other similar vehicles, with the same amount of concentration and with the same effect on the engine.

Pros

  • No need to wash with water, just wipe off surfaces with a clean cloth.
  • With an herbal fragrance that’s not irritating to the smell.
    A water-based degreaser
  • Easily dissolves stubborn grime and grease.
  • With unique formulation compared to other brands.

Cons

  • Although this cleaner is water-based, caution should be observed when utilizing as this may cause burns to the eyes and skin.
  • Not advisable to use when children are around.
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Conclusion

We hate to pick the best one on our list because we feel that each product we have mentioned has its own role in cleaning your engine. But, we definitely have to choose for the best from time to time. 

Our choice is the POR-15 40101 Cleaner DegreaserThe price is reasonable for a 1-gallon engine degreaser which we can use for several times. Remember that this product is concentrated which we can dilute to the right mix as needed. We can also use the POR-15 40101 in other types of engines (and other non-metal surfaces) as the family has several motorized equipment and tools on our house.

Although we don’t give much attention to its smell, we think that the product has no bad scent whatsoever.

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