Our Best Picks:
Our Favorite Car Wash Soap For Pressure Washer Reviews:
Bestseller No. 1 
Karcher Pressure Washer Car Wash & Wax Cleaning Soap Concentrate – 1 Gallon
- Universal Compatibility: Formulated to work in tandem with your pressure washer, and compatible with most consumer gas & electric power pressure washers
- The Karcher Promise - Cleaner. Quicker: Karcher's Vehicle Wash & Wax creates a perfect car wash system. The soap rinses away dirt and grime without leaving residue behind, revealing the original luster of your car, truck, SUV, motorcycle and more
- Highly Concentrated: Make up to 20 gallons of detergent from a single gallon of Karcher's Vehicle Wash & Wax Concentrate
- Eco-Friendly: Biodegradable formula
- Made in the USA
Bestseller No. 2 
Chemical Guys CWS_402_64 Mr. Pink Foaming Car Wash Soap (Works with Foam Cannons, Foam Guns or Bucket Washes) Safe for Cars, Trucks, Motorcycles, RVs & More, 64 fl oz (Half Gallon), Candy Scent
- 10 plus YEARS OF HAPPY CUSTOMERS – Mr. Pink has been available on Amazon since 2012 and consistently gets the best ratings and reviews (40,000 plus and growing). It’s one of the best-selling products in the history of Chemical Guys. Don’t believe us. Check out the reviews and ratings on this page.
- FOAMY FUN – The key to a clean car or a complete detail starts with a great wash. The best way to wash your car, truck, SUV, RV or Jeep is to use a product that creates a lot of foam. Mr. Pink produces thick, dirt fighting bubbles that help clean any vehicle.
- BUCKET, FOAM GUN OR CANNON – Whether you are washing with a wash mitt and bucket, a foam gun connected to your garden hose, or a foam cannon connected to your pressure washer, Mr. Pink is the right car wash soap to deliver loads of foam and suds to get a great wash.
- MADE IN AMERICA – Each bottle of Mr. Pink is proudly produced in the USA. We celebrate the happiness of clean cars each day in our Southern California headquarters as well as our Detail Garage retail store locations throughout the country.
- CONCENTRATED – A little bit goes a long way. Just add 1-3 oz. of Mr. Pink to a 5 gallon wash bucket or to a 32 oz. solution tank for your foam cannon or foam gun and you are ready to experience a foam frenzy.
Bestseller No. 3 
Chemical Guys CWS_110_64 Honeydew Snow Foam Car Wash Soap (Works with Foam Cannons, Foam Guns or Bucket Washes) Safe for Cars, Trucks, Motorcycles, RVs & More, 64 fl oz (Half Gallon), Honeydew Scent
- 10+ YEARS OF HAPPY CUSTOMERS – Chemical Guys invented the snow foam! We've been selling snow foams on Amazon since 2012 and consistently getting the best ratings and reviews (26,000+ and growing between Honeydew, Watermelon and Blueberry). They are some of the best-selling products in the history of Chemical Guys. Don’t believe us? Check out the reviews and ratings on this page!
- A WHOLE NEW LEVEL OF FOAM – The key to a clean car or a complete detail starts with a great wash. The best way to wash your car, truck, SUV, RV or Jeep is to use a product that creates a lot of foam. Honeydew Snow Foam produces thick, dirt fighting bubbles that help clean any vehicle.
- BUCKET, FOAM GUN OR CANNON – Whether you are washing with a wash mitt and bucket, a foam gun connected to your garden hose or a foam cannon connected to your pressure washer, Honeydew Snow Foam is the right car wash soap to deliver loads of foam and suds to get a great wash!
- BEGINNER AND PROFESSIONAL DETAILER FRIENDLY – Chemical Guys makes products for beginners and experts alike. Chemical Guys products are professional grade to get the best results and are also simple enough for even a beginner to achieve immediate results. This soap was made in the USA!
- CONCENTRATED – A little bit goes a long way. Just add 1-3 oz. of Watermelon Snow Foam to a 5 gallon wash bucket or to a 32 oz. solution tank for your foam cannon or foam gun and you are ready to experience a foam frenzy!
Bestseller No. 4 
Chemical Guys CWS20764 Extreme Bodywash & Wax Foaming Car Wash Soap (For Foam Cannons, Foam Guns or Bucket Washes) For Cars, Trucks, Motorcycles, RVs & More, 64 fl oz (Half Gallon) Grape Scent
- 12plus YEARS OF CLEAN and SHINY VEHICLES – Extreme Wash plus Wax has been available on Amazon since 2010 and consistently getting the best ratings and reviews (14,000plus and growing). There are other Wash and Waxes on the market, but none of them perform like Extreme Wash and Wax. Don’t believe us. Check out the reviews and ratings on this page.
- FOAM AND SHINE – The key to a clean car or a complete detail starts with a great wash. The best way to wash your car, truck, SUV, RV or Jeep is to use a product that creates a lot of foam. Extreme Wash plus Wax produces thick, dirt fighting bubbles that help clean any vehicle.
- BUCKET, FOAM GUN OR CANNON – Whether you are washing with a wash mitt and bucket, a foam gun connected to your garden hose or a foam cannon connected to your pressure washer, Extreme Wash plus Wax is the right car wash soap to deliver loads of foam and suds to get a great wash.
- BEGINNER AND PROFESSIONAL DETAILER FRIENDLY – Chemical Guys makes products for beginners and experts alike. Chemical Guys products are professional grade to get the best results and are also simple enough for even a beginner to achieve immediate results. This soap was made in the USA.
- CONCENTRATED – A little bit goes a long way. Just add 1-3 oz. of Extreme Wash plus Wax to a 5 gallon wash bucket or to a 32 oz. solution tank for your foam cannon or foam gun and you are ready to experience a foam frenzy.
Bestseller No. 5 
MISSION AUTOMOTIVE Concentrated Pressure Washer Car Wash Soap for Vehicle Cleaning 8oz Makes 12 Gallons - Made in the USA - For Pressure Washers
- Highly Effective Pressure Washer Car Soap: 8oz super concentrated Pressure Washer Vehicle Soap for use with standard pressure washers and foam guns or cannons. Makes up to 12 Gallons!
- Deep Cleaning Without Residue: Our highly effective auto wash soap formula quickly penetrates dirt, grime, salt & gunky build-up for a professional-looking clean. Unlike many other products on the market, ours won't easily leave an unpleasant residue.
- Easy To Use: Simply dilute 2 capfuls per gallon of water or 1.5 capfuls for a foam gun. Prewash the vehicle with water and then apply soap for car washing with the pressure washer. Scrub if required and rinse generously for a sparkling finish.
- Safe & Biodegradable Car Soap: Safe to use on clear coats, gel coats, fiberglass, aluminum, plastic, and rubber. Our pressure washer soap gives a deep-down clean on a variety of surfaces.
- Proudly Made In The USA: This pressure washer auto soap is made in the USA to the highest manufacturing standards. Give your vehicle a professional-looking clean.
Bestseller No. 6 
Sun Joe SPX-FCS1G-CRM Premium Snow Foam Orange-Vanilla Scent Car Wash Soap & Cleaner, 1 Gallon
- Questions, Text 563563 to chat directly with a Sun Joe expert
- CONCENTRATE: Pressure washer concentrate formula
- SAFE: Biodegradable, safe on metal surfaces
- DEEP CLEANING: Removes dirt and grime, yet safe for wax and sealants
- VERSATILE: Can be applied with a mop or brush to clean wood, brick and more.
SaleBestseller No. 7 
Adam's Car Wash Shampoo (Gallon) - pH Car Wash Soap For Snow Foam Cannon, Foam Gun, Pressure Washer | Powerful Spot Free Liquid Auto Detergent | Safe On Car Wax & Ceramic Coating
- ✅ ADAM’S CAR WASH SHAMPOO: SAFE, EFFECTIVE, & SLICK - Our pH neutral wash soap safely lifts dirt away from your car's paint, without damaging your clear coat. Plus, it creates a slick feel, lubricating all of your paint surfaces for a scratch-free wash experience.
- ✅ SAFE FOR ALL VEHICLE SURFACES - Our advanced cleaners and polymers make Adam’s Car Shampoo gentle enough to not dry out your trim or plastic components. It's effective, yet safe for all surfaces including paint, rubber, vinyl, windows & plastics.
- ✅ ENHANCE YOUR AUTO DETAILING ARSENAL - Adam’s Car Shampoo gives you a thick layer of suds that lubricates your vehicle paint to eliminate dirt, grime, & other environmental contaminants. It works great in a wash bucket, foam gun or foam cannon, and has a pleasant wild berry fragrance.
- ✅ THE PERFECT ADDITION TO YOUR CAR WASH KIT - Adam’s Car Shampoo is spot free, rinses clean & won’t strip existing waxes, sealants, or ceramic coatings. Use it in sunlight, before cleansing your paint with a clay bar, waxing protection, or paint polishing.
- ✅ 110% SATISFACTION GUARANTEE - At Adam’s, we bring the BEST car cleaning supplies, auto detailing kits, washing accessories, and more to the car care industry. If you're not satisfied, we'll do everything we can to make it right.
Bestseller No. 8 
Chemical Guys CWS21364 Mr. Gold Foaming Car Wash Soap (Works with Foam Cannons, Foam Guns or Bucket Washes) Safe for Cars, Trucks, Motorcycles, RVs & More, 64 fl oz (Half Gallon), Pina Colada Scent
- FOAMY FUN – The key to a clean car or a complete detail starts with a great wash. The best way to wash your car, truck, SUV, RV or Jeep is to use a product that creates a lot of foam. Mr. Gold produces thick, dirt fighting bubbles that help clean any vehicle.
- BUCKET, FOAM GUN OR CANNON – Whether you are washing with a wash mitt and bucket, a foam gun connected to your garden hose or a foam cannon connected to your pressure washer, Mr. Gold is the right car wash soap to deliver loads of foam and suds to get your vehicle clean!
- BEGINNER AND PROFESSIONAL DETAILER FRIENDLY – Chemical Guys makes products for beginners and experts alike. Chemical Guys products are professional grade to get the best results and are also simple enough for even a beginner to achieve immediate results. This soap was made in the USA!
- CONCENTRATED – A little bit goes a long way. Just add 1-3 oz. of Mr. Gold to a 5 gallon wash bucket or to a 32 oz. solution tank for your foam cannon or foam gun and you are ready to experience a foam frenzy!
- SMELLS GREAT, LOOKS GREAT, FEELS GREAT – Washing your car should not only be fun, but it should make you feel good! It makes you feel awesome when your ride looks clean and new. We’ve created Mr. Gold to not only make your wash better and easier, but also, the amazing pina colada scent adds to your car washing experience.
SaleBestseller No. 9 
Undrdog Car Wash Soap, Foam Cannon Soap For Pressure Washer, Cleaner Detailing Supplies, Foam Gun Soap For Cars, Motorcycles, Trucks, Boats, 8, 16, 32oz (16oz)
- IMPROVES COATING DURABILITY: This car wash foam improves coating durability by removing wax and grease.
- HOW TO USE: Specifically designed to be used prior to any Undrdog coating application, for ease of wax and grease removal, or after a coating has been applied for maintenance and durability.
- SAFE AND STRONG: An excellent off-road wash for cleaning your car, boat, and other tough surfaces in your home or backyard. This soap is safe to use, does not harm your coating and is strong enough to cut through thick dirt and grime. This product is compatible with all types of ceramic coatings.
- FOR BEST RESULTS: When using UNDRDOG car wash soap for a pressure washer, do not let the surface or item dry in direct sunlight because it can result in residue and dried paint damage – a result from rapid drying. Always dry the washed surface using clean microfiber towels and be sure to remove soap residue completely.
- INGREDIENTS: Sodium Tallowate, Water.
Bestseller No. 10 
Chemical Guys CWS20864 Watermelon Snow Foam Car Wash Soap (Works with Foam Cannons, Foam Guns or Bucket Washes) For Cars, Trucks, Motorcycles, RVs & More, 64 fl oz (Half Gallon) Watermelon Scent
- 10 plus YEARS OF HAPPY CUSTOMERS – Chemical Guys invented the snow foam. We've been selling snow foams on Amazon since 2012 and consistently getting the best ratings and reviews (26,000 plus and growing between Honeydew, Watermelon and Blueberry). They are some of the best-selling products in the history of Chemical Guys. Don’t believe us. Check out the reviews and ratings on this page.
- A WHOLE NEW LEVEL OF FOAM – The key to a clean car or a complete detail starts with a great wash. The best way to wash your car, truck, SUV, RV or Jeep is to use a product that creates a lot of foam. Watermelon Snow Foam produces thick, dirt fighting bubbles that help clean any vehicle.
- BUCKET, FOAM GUN OR CANNON – Whether you are washing with a wash mitt and bucket, a foam gun connected to your garden hose or a foam cannon connected to your pressure washer, Watermelon Snow Foam is the right car wash soap to deliver loads of foam and suds to get a great wash.
- BEGINNER AND PROFESSIONAL DETAILER FRIENDLY – Chemical Guys makes products for beginners and experts alike. Chemical Guys products are professional grade to get the best results and are also simple enough for even a beginner to achieve immediate results. This soap was made in the USA.
- CONCENTRATED – A little bit goes a long way. Just add 1-3 oz. of Watermelon Snow Foam to a 5 gallon wash bucket or to a 32 oz. solution tank for your foam cannon or foam gun and you are ready to experience a foam frenzy.
Last update on 2023-03-26 / Affiliate links / Images from Amazon Product Advertising API