The Best Parts Washer Solvent in 2020

After you have got a parts washer, the next thing you would want to do is use the best parts washer solvent. Instead of using the usual mineral based solvents, you are better off using a dedicated degreaser to keep your machinery strong, crisp, and clean.

Solvents for parts washers are essential if you want your automotive parts to be cleaned to the point where it looks brand new. From engine refurbishing to hardware manufacturing, these cleaners are used every day.

While there are a lot of cleaners out there, you need to make sure that the product you use will work with the parts washer you have. And for that, we have handpicked some of the best solvents for parts washer.

Right off the shelf, the thing you should avoid is using any old degreaser. Also, don't use diesel to clean your parts unless you want a nasty smell coming from you all day.

6 Best Parts Washer Solvent Reviews

With that being said, let's have a look at some of the best parts cleaner solvents on the market.

1. Simple Green Industrial Cleaner/Degreaser 

Simple Green Industrial Cleaner

Simple Green, while not the most inexpensive option out there, but it's definitely the most trusted and also the most widely used solvent out there. There are a couple of good reasons why you should consider this as the only solvent to clean auto parts.

It's a VOC compliant product, cleans things up well, not a fire hazard, and safe for materials. If you want a safer alternative to caustic solvents and cleaners, this is a good choice. You can use it as a degreaser or a cleaner to clean engine and engine compartments.

This all-purpose cleaner uses a non-toxic formula that is non-corrosive and non-abrasive, which makes it safe for all washable parts and surfaces. Whether you want to remove grease, heavy dirt, or food stains, this industrial cleaner can clean them all.

Unlike other solvents that produce a harsh smell, this one actually has a rather pleasant smell. The uses are virtually unlimited. You are not stuck with a cleaner that can only cut grime, grease, or oil. With this solvent, you can wash your work clothes, clean floors, driveways, and decks.


  • A powerful, all-purpose solvent
  • No harsh smell after cleaning
  • It works really well as a degreaser
  • Safe to work with 


  • Nothing to nitpick about

2. B'laster 128-PWS Industrial Strength Parts Washer Solvent

B'laster 128-PWS Industrial Strength Parts Washer Solvent

The B'laster parts washer solvent clearly takes the cake when it comes to cutting grease, motor oils, and cutting oils. It is a hundred times better than usual mineral based solvents on the market and can quickly remove grime and grease from metals. You can even use it to clean plastic surfaces.

The best feature of this cleaner is that it will not leave any residue, which means it is the perfect solvent to use on parts that you will be painting later. Although it's a powerful cleaner, it doesn't smell that bad. It smells more like a deodorized mineral spirit.

Putting that topic aside, let's talk about what actually matters, and that is cleaning performance. This one can cut through grease and dirt like a carb cleaner. In addition to that, you can use it to prepare your rusty metal for paint. You can even use it on a small benchtop parts washer.

Keep in mind that it's a petroleum-based parts cleaner, and if you are the type of person that used to use Agitene, the B'laster 128-PWS can be a good alternative. While it's not the cheapest solvent-based cleaner out there, but it is worth every penny when it comes to cleaning performance.


  • Cuts oil and grease like a carb cleaner
  • Petroleum-based solvent
  • Doesn't leave parts residue
  • Safe on metals 


  • Slightly expensive 

3. CRC 05067 Parts Washer Solvent

CRC 05067 Parts Washer Solvent

The CRC 05067 is a mineral spirit-based parts washer solvent that will clean just about anything. It's not corrosive, which means you can use it on aluminum, and it works really well. This one comes in a 5-gallon container that you can easily use on a 30-gallon drum parts washer.

The appealing feature of this solvent is its low VOC and because of that, it is California legal. While this isn't as aggressive as other cleaners, but the solvent works really well when it comes to cutting oil and grime. It can also remove other contaminants from your auto parts with ease.

Since it isn't as aggressive as the others, there are a couple of things that you can do prior to cleaning to get the most cleaning performance out of this product. First, use parts cleaning brush and soak the parts before you brush the curd off, and it will work wonders.

Just like any other solvent, this too will evaporate if you keep the lids open. However, the evaporation rate is slower on this one. On a side note, you can clean gun parts with it if you want but will leave oily film afterward.


  • Effectively remove grime and dirt
  • Low VOC
  • Easy & safe to use
  • Protects finish


  • Not very aggressive as a solvent

4. Oil Eater Original 1 Gallon Cleaner/Degreaser

Oil Eater Original 1 Gallon Cleaner

This is a fast-acting degreaser that uses the same formula used in Oil Eater's industrial cleaner to clean industrial products. As the name suggests, this one is hungry to clear. It can quickly degrease hard build-up and residue. In addition to that, it can also be used to clean household items.

The entire container does not have a single drop of acid. It is a water-based solvent that is biodegradable and safe for the environment. However, it comes concentrated so you should follow the dilution chart on each bottle and dilute it with water.

This means that the cleaning agent can solve two problems. When it's diluted, you can use it as a general cleaning agent and use it concentrated when working on high-demand projects. You can even use it in septic systems.

This cleaner can also be used for non-food surfaces since it is USDA approved. As far as the usage goes, you can even remove those tough to clean oil stains from your driveway. You can clean carpets and host of other stains by using it straight or diluted without causing any sort of harm to the fabric.


  • Eco-friendly cleaning solvent
  • It comes concentrated
  • Works fast to remove residue
  • All-in-one cleaning solution 


  • Needs some brushing to fully remove stains

5. Simple Green 19128 Crystal Industrial Cleaner/Degreaser

Simple Green 19128 Crystal Industrial Cleaner

When it comes to making eco-friendly solvents, Simple Green knows how to deliver the right product. This is a water-based industrial cleaner and degreaser that is specifically formulated for critical cleaning applications. If you want to go green, this is the best auto parts cleaner solvent on the market.

If your cleaning job requires a fragrance-free solution, go with this one. As for the cleaning performance, you can clean your bike chain to the point where it will brand new. It is non-caustic, non-toxic, non-hazardous, non-corrosive, non-flammable, and VOC compliant. In short, it is perfectly safe to use.

This liquid comes concentrated, and if you want to perform a heavy-duty cleaning task, use it out of the bottle. On the other hand, for delicate cleaning jobs, you can dilute it to your desired level. This way, you can safely clean your parts without causing any harm.

There is no doubt that it is one of the most powerful cleaners on the market, especially for those that don't have the permission to use industrial solvent. It is powerful enough to break down grease and oil from engine parts without the smell or any sort of after affect.


  • Safe to use as a kitchen cleaner
  • It can easily get rid of grease and oil
  • Environmentally friendly
  • Fragrance-free 


  • A bit pricier than regular solvents

6. Graymills M5005-141 5 Gallons Cleaning Solvent 

Graymills M5005-141 5 Gallons Cleaning Solvent

Finally, we have the Super Agitene™ M5005 from Garymills. The specially formulated degreasing fluid of this solvent can easily outperform any water-based solvent in the market.

This is the best parts washer cleaner that has an industrial-grade cleaning strength that is great for an automotive repair shop. This degreaser is ideal for engine and other engine components as well as painted surfaces, plastics, and metals. It is a low-odor solvent that has a higher flash point of 141°F.

If you work in a place where a high flash point solvent is required, this product will meet your local regulations. It meets VOC regulations and does not contain any hazardous ingredients listed by the EPA's RCRA.

It is powerful enough to remove and soften gummy deposits that are otherwise unaffected by regular mineral spirits. To reduce the chance of chapping and irritation on your skin, it comes with a cosmetic-grade lanolin formulation that replenishes your skin's natural oil.


  • Ideal for heavy-duty cleaning
  • High flash point solvent
  • It meets VOC regulations
  • Non-hazardous 


  • Can't be used for pre-painting process

Best Solvent For Parts Washer Buying Guide

Different cleaning applications require different solvents. So, how do you know which one is right for your parts washer? Let me answer this question with another question. What kind of cleaning task do you need to do?

High To Medium Usage

If you intend to use your parts washer for all your cleaning jobs, go with a petroleum-based solvent like the B'laster. This a heavy-duty solution that is specifically intended to be used in a parts washer only.

To get the most out of your cleaning solvent; it is better to go with industrial-grade products, especially if you are running a repair shop or a home garage. For a big facility that constantly degrease and maintain automotive parts, your need something strong.

Medium To Low Usage

For less frequent jobs, you don't need a powerful solvent. This means anything with an eco-friendly tag like the Oil Eater or the Spring Green will be more than enough.

water-based solvent

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In short, go with a water-based solvent that comes concentrated. That way, you can put them directly into a parts washer without diluting them. They also make for a powerful everyday cleaning solvent since you can dilute them to your desired level.

In addition to cleaning mechanical parts, you can use these cleaning agents to take care of frequent spills and other regular maintenance. In short, these all-rounders are a great product to have in your facility.

Parts Washer Capability

Make sure that your parts washer can handle flammable cleaning agents because there are some models that require you to use water-based solvents only.

Frequently Asked Questions

1. What solvent to use on a new parts cleaner?

If you don't want to smell up the garage too much, I would suggest you go with something that has low-odor and biodegradable.

2. Are water-based cleaners any good?

In terms of cleaning strength, water-based cleaning agents won't perform as well as a petroleum-based cleaning agent. With that begin said, most cleaning jobs won't require the need for a petroleum-based cleaner.

3. Can I use mineral-based parts cleaning fluid for other cleaning tasks?

Aside from metal parts, you can use these cleaning agents to clean hard plastic objects.

4. Can I use a petroleum-based solvent on a parts washer designed for water-based solvent?

No. If you do that, the pump housing of your parts washer will distort, thus rendering the parts washer useless. It can also create a fire hazard since these are flammable liquids.

5. Can I use kerosene as a parts cleaner?

The usage of kerosene is quite common and has been in use in workshops for a long time. This is mainly because of the low cost. However, when it comes to removing bearing grease, kerosene is not very useful.

Final Thoughts 

In the end, the best parts washer solvent is the one that meets your cleaning needs for your particular parts washer. You don't always have to go cheap and get an ordinary cleaner or pay a premium to get an industrial-grade cleaning agent if you don't have the use for them.

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