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Best Car Wash Soap for 2022: How To Choose The Top Soap For Your Car Wash

Cleaning vehicles is the best way to maintain them and keep them looking like new. The best car wash soaps will remove dirt, grime, and other buildup without damaging the paint or clear coat.

Turtle Wax Pro has been a providing high quality chemistry for over 75 years. Our products achieve better results than the rest on the market while being formulated without any phosphates, hydrofluoric acid or ammonium bifluoride.

Turtle Wax Pro is just one option and many people will have their own opinion on the the top rated car wash soap. There is a never-ending amount of choices for car care products. Hopefully this list of criteria will help you reach a decision on the best car wash soap for you.

Car wash soap

What is Car Wash Soap?

Car wash soap (or car shampoo) is a specially formulated detergent that is designed to remove dirt, grime, and other contaminants from your vehicle's surface.

It is important to use a car wash soap that is specifically designed for washing cars because regular household detergents can actually damage your car's paint and finish.

Sidebar: What is the Difference Between Soap and Detergent?

Soap and detergent are both cleaning products, but they are made from different materials and have different purposes.

Soap is made from natural materials like vegetable oils or animal fats. It is effective at cleaning dirt and grease, and it is biodegradable.

Detergent, on the other hand, is made from synthetic materials and is designed to clean in more difficult water situations. It is also more effective at cleaning oily stains.

For the purposes of this article you may see us refer to our products colloquially (informally), as both soap and detergent, but Turtle Wax Pro products are formulated as detergents!

Why Do You Need Car Wash Soap?

Car washing may seem like a simple task but the details do matter. Using the right soap to clean vehicles is a basic but vital step in achieving great results.

Obviously, some sort of soap is necessary in order to properly clean a car. A well formulated soap will remove all of the dirt, road grime, dust, swirl marks and insect bits that have built up on a car's surface.

Additionally, car wash liquid is designed to be gentle on a vehicle's surface. It will not strip away wax or polish like some household detergents can.

Existing Contaminants Can Be Harmful To A Vehicle

Road grime, dirt and other contaminants can be very abrasive, and if not removed properly, can cause damage to your vehicle.

For example, if you live in an area with a lot of clay in the soil, that clay is fine enough that it can become embedded in your vehicle's paint and cause permanent damage.

Can you use Dish Soap to Wash your Car?

Let's just say the secret to achieving a spot free car wash is not using dish soap on vehicles.

Dish soap is not designed for vehicles, and can actually strip away the wax or protective coatings on your car. This will leave your car paint unprotected and susceptible to damage.

Dish soap is formulated to remove oil and grease from dishes, which is why it  is so effective at cutting through sealants. So while dish soap might get your car clean in the short term, it will actually cause more damage in the long run.

Car being washed with a sponge

How to Use Car Wash Soap?

The process for a DIY car wash and a professional car wash are actually quite similar. The main difference is the amount of water and soap that is used.

Automated car washes will have machinery that will take care of the majority of steps that the DIY or self serve car washer would need to do by hand.

We recommend following the instructions listed on the product, but a general guide for the best car wash is as follows:

  1. Start by rinsing your car with water to remove any loose dirt or debris.
  2. Apply the car wash soap to a wet sponge or cloth and wash your car in small sections, starting from the top and working your way down.
  3. Rinse the soap off your car with water (ideally a pressure washer)
  4. Dry it with a clean microfiber towel (or microfiber wash mitt) to ensure a streak free finish.

Dialling in the correct wash settings in a tunnel or in bay automatic.

The Turtle Wax Pro team has over 75 years of experience formulating car care products. Our amazing service team are passionate experts that are always on hand to offer advice and support.

We've got a lot of documentation and expertise around our products and cleaning cars. That means we're able to set up any wash to run at peak performance within a short period of time!

Hyper-Concentrates

At Turtle Wax Pro our detergents are all hyper-concentrated. This means that you need less detergent to achieve the same quality results when compared to other brands.

Investing in a High Quality Car Wash Soap

It is also important to discuss how car wash soaps can differ. In short, there are three main types of car wash soap:

  • Budget soaps (Most of our competitors) that will get the job done (kinda) but might not be as gentle on your cars or equipment.
  • Mid-grade soaps (Transchem's Autolux Line) that strike a balance between price and quality.
  • Premium soaps (Turtle Wax Pro) that cost more but offer the best possible results.

When it comes to car care, you get what you pay for. Investing in a high quality commercial car wash soap will save you money in all the ways we've previously mentioned. It also offers the best results to make your customers keep coming back for more. Keep in mind it is possible to offer an affordable car wash even with premium soaps.

Turtle Wax Pro product lines

Choosing a Premium Manufacturer like Turtle Wax Pro

The amount of options for car wash soaps on the market today can be overwhelming. However, the importance of choosing a high quality car wash soap can not be overstated.

Turtle Wax Pro is a car wash chemical manufacturer that produces premium car wash soaps, shampoos, detergents, waxes, ceramics, drying agents, finishing products and other surface protection products.

We've been doing it for decades.

Our products are formulated with the latest car care technology to deliver outstanding results and our team of experts are always available to answer any questions you may have.

We're passionate about what we do and we want to help you get the most out of your car wash business. We know that our success is built on your success.

How does the Soap you Choose Affect your Car Wash Business?

The car care industry is a competitive one and choosing the right products can make or break your business.

If you're using lower quality car wash soaps, shampoos, and other products it will reflect in the quality of your car wash.

Your customers will notice this and it will ultimately hurt your bottom line.

Achieving the Perfect Wash

The goal for everyone in the car wash industry is to be able to provide consumers with the perfect wash. There are numerous aspects to consistently providing that level of service and your chemistry is the backbone.

To achieve the ultimate wash, you don't just need quality products. You also need those products to work together in harmony.

Turtle Wax Pro products are never formulated on their own and often go through months or years of testing alongside our existing products. This ensures that they will play nice with each other and provide you with the results that you expect.

How to choose the right soap?

There are a few things you'll want to keep in mind when choosing the proper car wash soap for you.

Frequency of Washing

The ideal frequency for the best car wash is about once per week.

This ensures that the customer's car is getting cleaned on a regular basis and the finishing products are working properly to protect and maintain the paint.

Turtle Wax Pro products are formulated with this frequency in mind.

Without getting too heavily into the science, washing a car regularly will actually make the car easier to clean and shinier with each additional wash.*

The Environment

If being green is important to you then you'll want to look for a commercial car wash detergent that is biodegradable and gentle on the environment.

These soaps are just as effective at cleaning your car but won't have a negative impact on the planet.

Turtle Wax Pro is proud to say that all of our products are formulated with the environment in mind. The majority of our North American product lineup is Ecologo Certified. A certification that we drafted with regulators for high levels of environmental consciousness.

Water Quality

Water quality will differ based on your location. If you're using city water then it's likely that the water is already pretty hard.

This means that it has a higher concentration of minerals like calcium and magnesium. If you live in an area with softer water, then you don't have to worry about this as much.

It's important to be mindful of what water you have and if you should make any changes to it before you decide to run your car wash business.

Most car wash soaps will not be as effective when used with hard water and will fail to produce the thick foam required for total surface coverage. There are some specially formulated soaps that are designed to work with hard water, but typically we recommend installing some type of water solution instead.

These options will remove or modify minerals from the water that cause it to be hard, and will leave you with water that's ideal for a spot free wash.

Car being washed in a car wash

Will Car Wash Soap Damage My Clear Coat or Sealant?

The short answer is: no it won't. Since soap is meant to clean, you may think any finishing product (car wax or ceramic) that was previously applied may be compromised after a wash.

What do surface protectants do for vehicles?

Waxes and sealants are designed to form a barrier between the painted surface and the elements. They often protect against UV rays, water spots, bird droppings and road film that could potentially damage a car's surface.

So, does using soap affect the car's wax or sealant?

As long as you're using a quality detergent that is designed for use with protected surfaces, you will not damage the wax or sealant. In fact, regular car washing is actually beneficial for maintaining the longevity of these products.*

But if you use the wrong kind of soap, it is possible that it could remove that protective barrier.

Specialized Car Wash Soaps

You may have a specific need that an ordinary soap cannot supply. We'll go through the common different specialized soaps. As well as explaining when you might want to use them.

Wash and Wax Car Soap

As the name implies, these soaps are designed to both clean and protect your car in one step.

Wash and wax car soaps typically contain Carnauba wax, which is a natural form of protection for your car's paint. But the wax formula can differ depending on the product.

With a wash and wax product it is generally hard to achieve a streak free finish or avoid swirl marks due to it's application process.

  • These are typically offered to DIY washing car owners who regularly wash their car in their driveway and protect their car's finish all at once
  • You'll also sometimes find this type of product in a low end car detailing shop

Carnauba Wax

Pure carnauba is one of the hardest, most durable forms of protection you can put on your car. It's often used in products that are designed to protect the paint on boats and other vehicles that are exposed to harsh conditions.

So, if you're looking for a soap that will both clean and protect your car's paint but also be a low commitment method to achieving that wax protection, wash and wax soaps might be the right choice.

However, the wax protection wash and wax soaps provide is not as durable or long lasting as other surface protectants. Premium carnauba wax can last up to 12 months but will likely last much less time in wax soap combination product.

Hard Water Soaps

As we mentioned before, if you live in an area with hard water, you'll need to take that into consideration when operating your car wash.

Most auto soap will not be as effective when used with hard water. Hard water affects the quality of your chemistry and could be a major factor in producing lacklustre cleaning results.

A water softener or reverse osmosis system are recommended solutions for water hardness, but there are some special car wash soaps that are designed to work with hard water.

Hard water soaps are formulated to be slightly more acidic than other car wash soaps. This helps to break down the minerals in hard water that can cause streaking and spots on the car's paint job.

  • Hard water soaps are formulated for people with less options or no options for dealing with hard water in their water supply

Wheel Cleaner

Iron stains can become apparent on vehicles, especially on car wheels. While regular car wash soaps can help to remove some of the brake dust and grime that builds up on wheels, they are not always effective at removing iron stains.

A wheel cleaner is a specialized product that is designed to remove these types of stains. Wheel cleaners typically contain an acid, which helps to break down the iron molecules that cause the staining.

Most wheel cleaners are safe to use on all types of wheels, but it is always best to read the product label to be sure.

Waterless Wash (or No Rinse Wash) Soaps

A waterless car wash soap is a quick and easy way to clean your car without having to do a rinse wash at the end. As the name suggests, you don't need water (or very little) to use these soaps.

Waterless washes are perfect for people who want to clean their car but don't have access to a hose or water source. Some waterless washes also come in a foaming formula, which makes them even easier to use.

A no rinse wash product is also a good option if you purposely want to avoid using water altogether. You simply spray the soap on your car and wipe it off with a microfiber towel/wash mitt.

  • These are formulated more for the home user rather than a business but can be a convenient option to some car owners.
Shiny sports car

Why Does pH Level Matter?

pH is a scale that is used to measure how acidic or basic (not the white girl kind) a solution is. It is an important aspect to consider when looking at the proper car wash soap for your business.

The scale goes from 0 to 14, with 0 being the most acidic, 14 being the most basic, and pH level of seven being neutral.

We will do a complete breakdown of how pH level affects cleaning in a future blog post but for now here is a rough breakdown:

Low pH

Low pH detergents or presoaks are effective at attacking inorganic material found on vehicle surfaces. This includes things like brake dust, road grime, salt and heavy dirt particles. A low pH car wash soap is typically considered to be in the range of 0-4.

High pH

High pH soaps are better at attacking organic material, like bugs, grease and tree sap. High pH chemicals are effective at breaking down proteins found in these organic materials. A high pH car wash soap is typically considered to be in the range of 11-14.

Neutral pH

There are also some soaps that have a neutral pH level (also known as pH balanced). A pH neutral formula can be used on all types of cars, regardless of how dirty they are.

pH balanced soaps won't be as effective at attacking either inorganic or organic materials, but they are a good option for people who want an all-purpose soap for the entire car.

Neutral pH soaps typically have a pH level of around five to eight.

Which pH level should you pick?

Picking the best car wash soap by pH level depends entirely on your wash setup, location, water quality, and what type of dirt/grime you are trying to remove.

For the ultimate wash it will be best to use both a low pH and high pH soap in your wash process. This will ensure that all types of dirt and grime are removed from the vehicle.

In most situations it's best to start with the high pH cleaners and work towards creating a low pH environment to help the finishing products adhere to the vehicle's surface.

We recommend getting in touch with a car wash chemical supplier like Turtle Wax Pro to see what kind setup is right for you.

Hyper-Concentrated Car Wash Soap

Hyper-concentrated car wash soap is the future of the car wash industry.

It involves the chemicals being in heavily concentrated form (very little water content) and the end-user (car washes) diluting the concentration to the correct ratio.

Hyper-concentrated chemistry ensures:

  • Lower shipping costs as more product will take up less space
  • Reduced environmental impact by using less packaging and plastic
  • Easier to physically move and dispense product
  • Allows business to stock up on more product as it will take up less room

This ensures every ounce of a product applied to a vehicle is cleaning efficiently with less water, while producing even better results.

We highly recommend you look at a company that uses hyper-concentration for its chemistry for all of these benefits.

The Best Car Wash Soaps

The best car wash soap is an opinionated topic. We at Turtle Wax Pro truly believe we offer the best car wash soap on the market.

  • Our detergents are available in a variety of pH levels to help you overcome challenging cleaning conditions.
  • High-lubricity detergents produce a rich, dense foam that gently deep-cleans for scratch free cleaning.
  • We have products with multiple scent options and offer SKUs that are effective in friction, touchless and self-serve (pressure washer) car wash scenarios.

The truly amazing part of our soap options is that:

  • They are all designed to work perfectly with any of our other offerings to ensure you're creating the cleanest, shiniest and driest cars possible.

To Summarize

The significance that soap holds to a car wash cannot be overstated. It is essential for keeping vehicles not only clean and shiny but also for maintaining the vehicle's finish.

The car wash formula you choose will depend on the kind of car wash you have, as well as what you want to include in your wash process.

That's right, the soap included in that car wash kit might not the right choice for you.

The process of choosing the best car wash products can be tricky but we are here to help.

Contact us today to learn more about our top car wash soaps and how to choose the right chemistry for your business.

*Finishing products like waxes and ceramics create a hydrophobic barrier on the car's finish. This protective coating helps repel water and dirt, making it harder for contaminants to reach and stick to the surface of a vehicle. This makes them continually easier to remove after each wash.

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