Best Pressure Washer Detergent and Soaps – Top 10 Reviews & Buyers Guide

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Simple Green Oxy Solve Deck and Fence Pressure Washer Cleaner - Concentrate 1 Gal

Welcome to our review of the best pressure washer detergent. You can have the best pressure washer money can buy, but it’s only as good as the soap you use to do the actual cleaning. If, after pressure washing, you have noticed dirt, tough stains, and grime creeping back year after year, then it’s time to find a pressure washing detergent soap that works!

We have reviewed the entire range available and narrowed the search down to a top 10 list. We are confident you will find a pressure washer soap that suits your needs and will significantly improve what you already use.  

Here’s a quick overview of what to expect in this best pressure washer detergent article:

Our article is split into 3: 

  • An easy-to-read comparison table where you can quickly compare the products side-by-side
  • Written reviews for each one, and
  • A buyer’s guide packed full of hints and tips.

Sound good?  Let’s get going!

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Comparison of the Best Pressure Washer Detergent

CLICK any image to see Ratings and Reviews on Amazon


Further reading: Best Karcher Pressure Washer for the Money – Top 4 Reviews

Top 10 Pressure Washer Detergents – Reviews


1. Oxy Solve Total Outdoor Pressure Washer Cleaner 1 Gal. Detergent Bottle (Best Overall)

Pros & Cons

  • It uses peroxide and not bleach
  • Environmentally friendly
  • Cleans several surfaces
  • May not remove stains on vinyl


2. Karcher Multi-Purpose Cleaning (Best Value)

Pros & Cons

  • Biodegradable
  • Multi-purpose detergent
  • Highly concentrated
  • Measurements can be quite an issue


3. Sun Joe SPX-HDC1G Pressure Washer Detergent

Pros & Cons

  • It is safe
  • Can be used for in-house cleaning
  • It is universal
  • Not as strong as other detergents


4. Briggs & Stratton 6826 Multi-purpose Cleaner

Pros & Cons

  • It comes in concentrated form
  • Versatile
  • It can easily clean different surfaces
  • Dispenses quite fast


5. Sun Joe SPX-APC1G Pressure Washer Detergent

Pros & Cons

  • The manufacturers offer call support
  • Universal
  • Safe on metal surfaces
  • Unscented


6. Simple Green Oxy Solve Concrete and Driveway Pressure Cleaner

Pros & Cons

  • It is safe
  • Made with an orally non-toxic formula
  • Most users say that it is not as good as advertised


7. Mission Automotive Wash Concentrated Pressure Washer 

Pros & Cons

  • Easy to use
  • It can be applied using a foam gun
  • Leaves no residue
  • Only limited to cars


8. AR ANNOVI REVERBERI ARDFW04 Pressure Washer Detergent

Pros & Cons

  • It can be used for both heavy and light cleaning
  • It removes all stains
  • It can be used for degreasing
  • Expensive


9. Sun Joe SPX-FCS1G-CRM Premium Snow Foam 

Pros & Cons

  • Fantastic scent
  • It is safe for wax and sealants
  • Environmentally safe
  • The scent may not sit right with others


10. Oxy Solve Pressure Washer Cleaner

Pros & Cons

  • It uses an orally non-toxic formula
  • Can clean several surfaces
  • Removes discoloring on surfaces
  • Stubborn algae stains may persist

Video: How to Use Pressure Washer Detergent

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Pressure Washer Detergent Buying Guide

It would be best to look out for a few things when shopping for the correct pressure water detergent. Keep in mind that just like tools, these items differ in quality and results. Here are a few things that should be on your checklist:

Intended usage/ purpose

It would be best if you considered the job at hand before settling on a pressure water detergent. You should factor in what you would like to clean, the surfaces you want to work on, and whether you need the detergent for professional or general home cleaning. 

From our reviews, you can establish that some detergents are best suited for cleaning sidewalks and driveways, whereas others work best when used on sidings. Also, some detergents are meant for cars only. 

However, we highly advise you to settle on a multipurpose detergent to be on the safe side. Such options will save you money and time since they are suited for all types of cleaning. 

Effects on the environment 

It would be best if you weighed the impact that your option will have on the environment. We highly advise that you settle on a safe, biodegradable detergent. Remember that there are vegetation and animals around the areas that you will be cleaning. 

All the recommendations in our reviews are safe, biodegradable detergents formulated with environmental-friendly ingredients. You should also avoid detergents that use bleach to clean surfaces. Ensure that you thoroughly scrutinize all the ingredients used in the formulation of the detergent. Look out for any toxic element that may harm the environment. 


Oxy Solve Total Outdoor Pressure Washer Cleaner - Removes Stains, Mold, and Dirt on Patios, Furniture, RVs, Vehicles, Boats – 1 Gal


Type of detergent 

This is perhaps one of the first questions you should ask yourself before buying a pressure water detergent. Several detergents are suited for different roles. Some cause very little foam, which may not go well with your cleaning purpose. 

On the other hand, other detergents produce excess foam and can be used with a foam cannon. These are the best options for washing your deck or driveways but not foam your car. Therefore, make sure that you settle on a detergent that aligns with your purpose. 

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Detergent or soap?

Pressure washer detergent tends to be a more potent mix than just soap. It is also concentrated and lasts longer, and is rinsed more efficiently. Soap may leave residue, streaks, and smudges requiring additional cleaning by hand, and that’s not good news! To make your own DIY pressure washer detergent, you can start by mixing 1 gallon of water with ⅓ cup laundry detergent powder and ½ a pint household cleaner. If desired for general purpose cleaning, use vinegar also in the recipe to get rid of any odors that may be present on the surface being cleaned or if there is excessive dirt build-up around it.

Hard or soft water?

Another consideration is the type of water you have where you will be using the pressure washer. Harder water will wash quicker, but it does tend to leave streaks and smudges. Look for a detergent that is more suited to the water type you have.

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The choice of brand is usually a huge consideration, especially for first-time buyers. Certain brands have managed to beat all odds and remain at the top. Others are also known worldwide for their premium products. 

We would highly advise you to get a good brand and be loyal to it to prevent disappointments. We also understand that some people love brand hunting and shifting. However, ensure that you are careful while trying out different brands. If you are a first-time buyer, I would advise you to settle on any of the brands we have reviewed. 


Simple Green Oxy Solve Deck and Fence Pressure Washer Cleaner - Concentrate 1 Gal


Customer reviews and feedback 

The best way to know about a product is through listening to what customers and users have to say about it. Feedback is necessary since it depicts the product’s accurate information, away from what the manufacturer may have provided. 

Therefore, before settling on a product, take some time, and look up what consumers have to say about it. Products with good customer reviews rarely disappoint, offering you value for your money. Also, take some time and look at the ratings of the detergent that you are eyeing. A good rating means that the product can live up to the standards that you want. 

Know your pressure washer

Each pressure washer has different features, and knowing what your has will help you decide which detergent or soap to use. For example, Chemical Injection and Detergent Injection are phrases pressure washers manufacturers use to advise whether the model has a tank for chemical cleaners or detergents.

Look for other phrases, too, such as Unloaders or Thermal Relief. This reduces the heat buildup and pressure in the washer and will significantly increase the lifespan of the pressure washer. 

It’s super important to know the max pressure your washer works at as this guides you whether you will be able to use a multi-purpose detergent on your vehicle or whether the pressure is so high it will cause damage.

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Your environment

Consider your environment, too. If you live in an area where sand dust is prevalent, a more light-duty pressure washer of around 1300 to 1900 PSI and 2 GPM will suffice. You don’t need to buy a more expensive model. These lightweight models are perfect for cleaning garden furniture, cars, boats, decking, and patios.

A medium-duty pressure washer rated at around 2000 to 2800 PSI and 3 GPM is ideal for areas that suffer high pollen counts. Mildew, mold, algae, and grime all build up over time, and the slightly more powerful pressure washer will be ideal for keeping your residence looking great.



Most pressure washers come with a variety of nozzles, which impact the soap or detergent you choose. Here are the different types of nozzles and their uses:

0° – has the most power and highest concentration

15° – is ideal for heavy-duty cleaning

25° – perfect for general maintenance around the home

40° – less pressure makes it suitable for cleaning surfaces susceptible to damage, such as paintwork.

65° – lowest pressure making is perfect for soap and other cleaning agents.

Other considerations include the availability and type of scent or lack thereof. All in all, make sure that you settle on a detergent that will help you achieve what you want. 



Best Overall pressure washer detergent went to the Oxy Solve Total Outdoor Pressure Washer Cleaner as it’s environmentally friendly, with no bleach, and multi-purpose. Our Best Value award went to the Karcher Multi-Purpose Cleaning. Although a branded make, it is good with any make and model of pressure washer so long as you follow the manufacturer’s advice and guidelines.

Here are some other articles you may like:

Best Pressure Washer Hose for the Money – Top 10

Best Pressure Washer for the Money – 7 Reviews

Here are our Favorite Karcher Pressure Washers

CLICK any image to see Ratings and Reviews on Amazon

Walter Snyder

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