The 10 Best Engine Degreasers of 2025

The top 5 products, which are listed below with an explanation of their benefits and drawbacks, were the primary focus of our research.

1. Best Overall: SuperClean Multi-Surface

2. Best Budget: Chemical Guys SPI_993_16

3. Best Material: Chemical Guys CLD_201_16

4. Best Durability: Oil Eater Original 32

5. Best Compatibility: SONAX 543200-755

1. SuperClean Multi-Surface

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Product Summary

This is a fantastic option for degreasing engines. It is an environmentally responsible choice because it is non-toxic, biodegradable, and safe to use on all surfaces. It is a top choice for tough cleaning jobs since it is also highly good at dissolving grease and dirt.

Specification

• Superclean Dissolves Grease On Contact And Quickly Removes Grime, Oil, Wax, Dirt And Tar
• Industrial Strength, Yet Biodegradeable And Phosphate Free. One Of The Strongest Water Based Products On The Market. more

Reasons to buy

• Helps to keep engines running smoothly by removing dirt and buildup.
• Can help to identify leaks or other engine problems more easily.
• May improve fuel efficiency by reducing engine drag caused by buildup.

Reasons to avoid

• May contain harsh chemicals that can be harmful to people or the environment.

2. Chemical Guys SPI_993_16

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Product Summary

This is a popular choice among professional mechanics and DIYers alike. It's a powerful formula that quickly cuts through grease and oil, leaving your engine looking like new. It's safe to use on most surfaces and can be used on both warm and cold engines.

Specification

• Colorless and odorless cleaner
• Low foam for more effective cleaning power more

Reasons to buy

• May extend the life of an engine by preventing corrosion and other damage.
• Can be used as part of regular maintenance to keep engines clean.
• Some formulas are biodegradable and environmentally friendly.

Reasons to avoid.

• Improper use of degreaser can lead to damage or discoloration of engine surfaces.

3. Chemical Guys CLD_201_16

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Product Summary

This is a heavy-duty degreaser that's perfect for tackling tough engine cleaning jobs. It's a concentrated formula that can be diluted for lighter cleaning tasks, making it a versatile option. It's also safe to use on most surfaces, including aluminum and painted surfaces.

Specification

• PROFESSIONAL STRENGTH - Signature Series Orange Degreaser is a professional-strength citrus degreaser designed to safely remove the toughest dirt, grime, and grease that comes concentrated for flexible cleaning power.
• VERSATILE IN ANY SITUATION - Orange Degreaser is blended with powerful citrus extracts and hyper surfactants to easily cut through and separate grease and oil from any surface. more

Reasons to buy

• Can be used on a variety of engine types and materials.
• Easy to use, with options for spraying or brushing onto surfaces.
• May reduce the risk of engine fires by removing flammable debris.

Reasons to avoid

• Degreaser aren't suitable for all engine types, which can make it difficult to choose the right product.

4. Oil Eater Original 32

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Product Summary

This is a powerful solvent cleaner that's great for removing grease and grime from engines. It's safe to use on most surfaces and evaporates quickly, leaving no residue behind.

Specification

• Low VOC
• Non toxic more

Reasons to buy

• Can help to reduce the need for costly repairs down the line.
• May improve the overall appearance of an engine.
• Can help to remove tough stains or marks on engine surfaces.

Reasons to avoid

• May be less effective on older, built-up grime or oil.

5. SONAX 543200-755

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Product Summary

This is a multipurpose degreaser that works well for a lot of different cleaning jobs, including using on engines. On most surfaces, it's risk-free to use, and cold or warm engines can both use it.

Specification

• FAST & EFFECTIVE - Engine degreaser for all car engines machine tools parts and more
• POWERFUL FORMULA - The perfect degreaser for removing the toughest oil grease mud dirt and grime off all of your vehicle engines more

Reasons to buy

• May improve engine performance by reducing buildup on moving parts.
• Some formulas contain rust inhibitors to prevent corrosion.
• Can be used in both professional and DIY settings.

Reasons to avoid

• May not be suitable for all vehicles.

Type of engine 

Take into account the type of engine you have, since some degreasers might not be appropriate for all engine types. For instance, certain degreasers could be incompatible with specific materials or be too harsh for aluminum engines.

Strength 

The amount of buildup on your engine will determine the degreaser's potency. Look for a degreaser that is highly concentrated for tough cleaning; a lighter buildup might call for a less potent formula.

Safety 

Always keep the product's safety in mind, particularly any possibility for skin sensitivity or hazardous fumes. Look for formulations that are biodegradable and safe to use on a variety of surfaces.

Ease of use

Take the degreaser's application process into consideration. While other products can be sprayed directly onto the engine, some may need to be diluted or applied with special tools.

1. Can engine degreasers damage paint or other surfaces?

   Some degreasers can damage paint or other surfaces, so it's important to choose a product that is safe for use on your engine's surfaces. Always test a small area first before applying the degreaser to the entire engine.

2. How often should I use an engine degreaser?

   The frequency of engine degreasing will depend on the level of buildup on your engine. In general, it's a good idea to clean the engine with a degreaser every 6-12 months or as needed.

In conclusion, engine degreasers are a crucial piece of maintenance equipment for keeping your engine clean and efficient. It's crucial to take into account aspects like strength, safety, convenience of usage, and compatibility with your engine type while selecting for an engine degreaser. You can guarantee that your engine continues to run at peak efficiency for many years by selecting the best product for your needs.

See other reviews here: Best Engine Flush Products For A Clean