Engine Degreasers

Arianna Gray
11 min readJun 18, 2024

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If you’ve ever owned a car, you know how important regular maintenance is to keep it running smoothly. One crucial step in this process is cleaning your engine. A high-quality engine degreaser can work wonders in removing built-up grime, gunk, and grease, leaving your engine looking and performing like new. In this article, we’ll take a closer look at some of the top engine degreasers on the market, helping you make an informed decision to keep your car in top shape.

The Top 6 Best Engine Degreasers

  1. Liqui Moly Engine Flush Plus with SmartCleaning Technology — Liqui Moly Engine Flush Plus effectively removes troublesome deposits, increasing engine performance and extending the life of catalytic converters.
  2. Self-Emulsifying VOC Compliant Engine Degreaser — Super Tech Engine Degreaser effortlessly removes oil and grease with its self-emulsifying and VOC compliant formula, making it a top choice for enhancing engine performance.
  3. ShopPro Engine Degreaser Aerosol at AutoZone — ShopPRO Engine Degreaser Aerosol 15oz at AutoZone is a powerful degreaser that efficiently removes grease, oil, and dirt from engines, earning a 4.5-star rating from 343 satisfied customers.
  4. 15 oz. Heavy-Duty Engine Degreaser and Cleaner Spray (Pack of 2) — Blaster Heavy-Duty Engine Degreaser: Fast-acting, powerful cleaner for engines, leaving no residue.
  5. Gunk EB1 Heavy Duty Engine Degreaser — Gunk EB1 Heavy Duty Engine Degreaser: The ultimate solution for effortlessly removing stubborn grease and oil build-up from your hardworking engines.
  6. Powerful Engine Degreaser Cleaner Spray — Clean and protect your engine with Super Tech Engine Degreaser, a self-emulsifying, VOC-compliant, and two active ingredient spray that effortlessly removes oil and grease from engine components.

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Reviews

Liqui Moly Engine Flush Plus with SmartCleaning Technology

As someone who’s experienced the impact of engine deposits on a car’s performance, I can attest to the effectiveness of Liqui Moly Engine Flush Plus. It truly cleans out even the toughest oil deposits from an engine’s interior. The smell it produces during the flushing process is a testament to the stubborn sludge it’s cleaning out.

As I ran it through my car’s engine, I could almost hear the clink of burnt deposits being flushed out. An additional bonus to this product is its compatibility with almost all types of motor oil. The ease of use and quick results make it a must-have for anyone who’s serious about maintaining their car’s overall performance.

However, the one downside I encountered was the small bottle size. It’s only sufficient for up to 6 liters of motor oil. If you’re dealing with a larger engine, you might need to buy multiple bottles. Despite this, I still highly recommend Liqui Moly Engine Flush Plus for its impressive cleaning capabilities and the noticeable impact it has on an engine’s performance.

Self-Emulsifying VOC Compliant Engine Degreaser

When I first came across the Super Tech Engine Degreaser, I was intrigued by its potential to make my engine cleaning experience more convenient. As someone who loves to keep their car in tip-top shape, I was excited to give it a try.

Upon using the degreaser, I immediately noticed its unique self-emulsifying property, which allowed it to mix with both oil and water. This was a game-changer for me, as it made the cleaning process much more efficient. The water actually helped to pull oil and grease off the engine’s surface, leaving a cleaner and more polished appearance.

One feature that stood out to me was the fact that Super Tech Engine Degreaser was VOC compliant everywhere except for California. This made me feel confident that I was using a product that was not only effective, but also environmentally friendly.

However, there were a few cons that I encountered during my experience with the product. Firstly, the smell of the degreaser was quite strong, and it lingered in the air for quite some time after use. While this didn’t affect the cleaning process, it was certainly an unpleasant side effect.

Another drawback was that the product was not as effective as I had hoped when it came to removing tougher, stubborn grime. In some cases, I found that I needed to use a brush or even a power washer to really get into the nooks and crannies of my engine.

Overall, the Super Tech Engine Degreaser was a decent product for its price point, and it did a good job at cleaning the majority of the engine’s surface. However, it could have been more effective in removing tougher grime, and the strong smell was certainly a downside.

ShopPro Engine Degreaser Aerosol at AutoZone

The ShopPro Engine Degreaser is a powerful and efficient solution for cleaning grease, oil, and dirt from engines. This aerosol spray works effectively by loosening and dissolving these substances, making it easy to clean even the toughest spots on an engine. Designed with an excellent blend of solvents, surfactants, emulsifiers, and plantainers, this degreaser ensures a quick and thorough cleaning process.

This versatile product is highly praised for its value for money. Users agree that it is a fantastic choice for those who want to keep their engine clean without breaking the bank. The strong aerosol pressure helps to easily reach the most hard-to-reach areas of the engine, while the powerful solvents work to remove the most stubborn dirt and grime.

However, the ShopPro Engine Degreaser does have a disadvantage. It is essential to use this product in a well-ventilated area or with a mask on, as the strong odor can be uncomfortable for some users. Furthermore, some reviewers have mentioned that it might require multiple applications to remove the most stubborn dirt and grease, which can be slightly inconvenient.

In conclusion, the ShopPro Engine Degreaser is a reliable and effective tool for cleaning engines at an affordable price. Its strong aerosol pressure and powerful solvents make it a popular choice among auto enthusiasts, but users must be cautious of the strong odor and possible need for multiple applications.

15 oz. Heavy-Duty Engine Degreaser and Cleaner Spray (Pack of 2)

This heavy-duty engine degreaser and cleaner spray is a game-changer for keeping your vehicles in top shape. The formula quickly penetrates and dissolves grease, oil, dirt, and grime, boosting engine performance without the need for manual scrubbing. It’s compatible with cars, trucks, ATVs, and even marine motors.

With its CARB compliance and no residue left behind, the degreaser is safe for your car’s exterior too. So, save yourself the hassle and get this 15 oz. cleaner spray right away!

Gunk EB1 Heavy Duty Engine Degreaser

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The Gunk Original Engine Degreaser is perfect for those who need a reliable way to remove heavy grease and oil build-up from their engines. This self-emulsifying formula is designed to penetrate deep into the grease and oil, releasing it from even the most stubborn surfaces. With its 15-ounce can size, it’s a great choice for both home and professional use, and its unisex nature makes it perfect for anyone who wants a clean and well-maintained engine.

Using the Gunk Original Engine Degreaser is simple — just warm up your engine for about 10 minutes and disconnect the battery, then cover any sensitive components before applying the degreaser generously across the engine. Let it sit for a while, then use a little agitation to remove the grease and oil. The result? An engine bay that looks clean and brand new.

However, there are a few cons to using this product. First, it contains a high level of VOCs, which some users may find a concern for their health or the environment. Second, some users have reported that the product doesn’t perform as well as others on the market, with some even recommending alternative brands. Overall, the Gunk Original Engine Degreaser is a solid choice for those looking for a reliable way to remove grease and oil from their engines, but it’s not without its drawbacks.

Despite these cons, the majority of users give the Gunk Original Engine Degreaser high marks, with many praising its effectiveness and ease of use in cleaning their engines. With a rating of 4.6 out of 5, it’s clear that this product is a favorite among those who have tried it. If you’re in the market for a high-quality engine degreaser, the Gunk Original Engine Degreaser is definitely worth considering.

Powerful Engine Degreaser Cleaner Spray

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As someone who recently tackled a greasy engine, I can say that Super Tech’s Engine Degreaser proved to be a helpful tool. It not only removed the heavy grease and oil but also the hard-to-reach areas. The self-emulsifying formula made it effortless to mix with water, making my weekly car maintenance task much more manageable.

One downside I noticed was that it left a slight residue on some surfaces. Additionally, it took longer than expected to remove some stubborn grease. However, overall, the product performed well considering its low VOC (Volatile Organic Compound) rating, which is a plus for those concerned about the environment.

While I acknowledge that some users have had mixed experiences with this product, I can personally attest to its capabilities in taking on a grimy engine. The easy application process and gentle ingredients make it a worthwhile choice for those seeking a reliable engine degreaser. Ultimately, it may not be the holy grail of engine cleaners, but it does an admirable job, especially for the affordable price.

Buyer’s Guide

If you’re looking for a high-quality engine cleaner that can keep your vehicle’s engine sparkling clean and smooth-running, then you’ve come to the right place! Our buyer’s guide will help you discover the key features to look for when purchasing the best engine degreaser to fit your needs, as well as providing some top-notch advice on how to make the most of your cleaning experience.

Must-Have Features

When shopping around for an engine degreaser, remember to consider the following crucial features to ensure you get a top-notch product that’s perfect for your car and your cleaning needs. Here’s a rundown of what to look for:

  1. Formulation: Keep an eye out for engine degreasers that use the right mix of solvents, chemicals, and additives to tackle even the toughest grease, grime, and deposits. 2. Safety: Make sure the degreaser you’re interested in is safe to use and doesn’t pose any dangers to your health or your vehicle. Always keep an eye out for safety warnings and guidelines from the manufacturer. 3. Compatibility: Double check that the degreaser you’re eyeing is compatible with the materials in your engine bay, including plastic, rubber, or painted parts. Some products can cause discoloration or damage if not used correctly. 4. Vapor Pressure: Look for a degreaser with a low vapor pressure. This helps to prevent the product from evaporating too quickly and leaving behind a pungent odor. It also helps maintain visibility in the engine compartment. 5. Ease of Use: Choose a degreaser that’s easy to use in various forms, such as spray, foam, or liquid. Some products may require water to be added, so check the manufacturer’s instructions for the right way to apply the product.

Tips for Usage and Maintenance

To get the most out of your engine degreaser and keep your engine running as smoothly as possible, follow these simple tips for usage and maintenance:

  1. Timing: Choose the right time to apply the degreaser, taking into consideration factors such as engine temperature. Check the manufacturer’s instructions to make sure you’re doing it right. 2. Personal Protection: Prioritize your safety and wear gloves, safety glasses, and other protective gear when handling engine degreasers. 3. Application Technique: Follow the manufacturer’s guidelines on application, including the right amount and coverage. Applying too much or too little could impact the product’s effectiveness and safety. 4. Cleanup: Be ready for cleanup with materials like rags, paper towels, or a low-pressure water hose. Some degreasers can leave behind residue if not cleaned up properly. 5. Disposal: Check the product label or manufacturer’s guidelines for the correct way to dispose of the container and any used materials.

Additional Tips and Advice

Take your engine cleaning experience to the next level with these extra tips and pieces of advice:

  1. Read and follow the manufacturer’s instructions carefully. 2. Be aware of any potential conflicts between engine degreasers and other engine cleaning products or chemicals. Avoid using multiple products simultaneously. 3. Create a regular cleaning schedule with engine degreasers to help maintain your engine’s cleanliness. 4. Keep engine degreasers and all cleaning materials securely stored away from children and pets. 5. If you notice any issues or problems with your vehicle after using engine degreasers, consult a professional mechanic for advice.

With the right engine degreaser and a bit of knowledge, you can keep your car’s engine clean, free from grime, and running smoothly. Just remember to follow the manufacturer’s instructions and be cautious when handling any cleaning products.

FAQ

What is Engine Degreaser?

Engine Degreaser is a potent, yet non-toxic, cleaning agent explicitly designed to eliminate dirt, grease, and grime that accumulates on engine parts. It helps restore engine performance and ensures a cleaner, more efficient engine overall. This versatile degraser works effectively on various surfaces, including metal, plastic, and rubber.

Why are Engine Degreasers important?

Engine Degreasers play a significant role in maintaining engine performance and longevity. By removing carbon deposits that hinder engine efficiency, they prevent the accumulation of buildup that can eventually lead to engine failure. Furthermore, an engine degraser promotes better fuel efficiency and lubrication flow, reducing friction, heat, and the possibility of engine overheating.

When should I use Engine Degreaser?

Engine Degreasers should ideally be used during major engine services or maintenance activities, such as tune-ups, oil changes, or engine rebuilds. Their application ensures that the engine components are spotless and functioning optimally. It is also advised to use an engine degraser periodically throughout the year, particularly if the vehicle is frequently used in dirty or dusty environments, to maintain the engine’s peak performance and lifespan. However, it is essential to follow the manufacturer’s instructions or consult a professional to determine the appropriate usage frequency for your specific vehicle.

How safe is Engine Degreaser?

Engine Degreasers are generally safe for use, but specific precautions should be taken before application. Appropriate personal protective equipment, such as gloves, eye protection, and rubber boots, should be worn during handling. Working in a well-ventilated area or using proper ventilation is also essential, as some products can emit fumes that could be hazardous if inhaled. Always adhere to the manufacturer’s guidelines for safe handling and disposal. Additionally, avoid mixing an engine degraser with other chemicals or cleaners, as this may result in dangerous reactions.

Can I use Engine Degreaser on a warranty-covered vehicle?

Using an Engine Degreaser on a vehicle under warranty requires consulting the warranty agreement or contacting the manufacturer or dealership. Some warranties may have specific guidelines regarding the use of cleaning agents, and applying an engine degraser without their permission could void the warranty. It is always best to follow the manufacturer’s instructions or seek advice from a professional mechanic before using any cleaning agents on a warranty-covered vehicle.

As an Amazon Associate I may earn from qualified purchases!

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