Tested: Best Pressure Washers for 2023

While the vast majority of our testing consists of strictly automotive products, we know that pressure washers can do far more. Because of this, our testing parameters included data points that are useful for a wide range of power-washing jobs.

For our objective numbers-driven parameters (who doesn't love those?), we tested maximum water pressure with a psi gauge, water flow rate with a water flow meter, and noise level with a decibel meter. For our water flow rate reading, we took note of the rate prior to using the pressure washer itself—to account for leaks. We then subtracted this static water flow rate reading from the 'powered on' reading.

We weighed each pressure washer on one of our scales, with hoses and attachments included. Taking note of the power source was easy, as they're either 120 volts, a 20-volt battery, or gas-powered. We also listed all of the tips and spray patterns included with each pressure washer.

Because portability is quite important when using a pressure washer, we noted which ones were easy or difficult to move around. And finally, we tested the assembly and ease of storage. The readings and notes on all of these parameters helped us decide on the best pressure washers.

Aside from purpose and overall usability, you'll want to keep a few key specifications and features in mind when shopping for a pressure washer. Below are the key elements you'll want to consider:

Power output (psi): For cleaning your car, look for something between 1200 and 2200 psi. That's strong enough to clean cars and trucks well without damaging their surfaces. That should also be more than enough pressure to use with foam cannons and spray nozzles designed specifically for cars.

For bigger jobs like washing a driveway or cleaning your home's siding, you'll want between 2500 and 3500 psi. Anything more powerful than that is for things like stripping paint and graffiti removal.

It's also important to keep your fingers and toes away from the water stream at all times. These high water pressures can cause serious damage to skin and limb, so please use caution.

Water flow (gpm): A gallon per minute (gpm) of 1.2 to 2.5 is enough for most home and automotive tasks.

Nozzle options: Make sure you have different spray patterns and angles. Wider angles are better for delicate surfaces, while narrower ones pinpoint the stream to tackle tougher jobs.

Hose length: A longer hose gives you more reach and flexibility, so you won't need to move the unit around as much.

Soap system: While built-in tanks are often designed for "soap," we don't recommend putting car wash soap in the reservoir because it can gum up the nozzle. The best option is to buy a foam cannon and apply the soap through that. Check instruction manuals on which kind of soaps or detergents you can put in your pressure washer's soap tanks.

Portability: Make sure the pressure washer you use for car washing is easy to move. Wheels are a must; four work fine but a two-wheeled, tilting power washer is even easier to push around the driveway.

Electric vs. Gas: Electric models are lighter and quieter, while gas-powered pressure washers usually offer more power and mobility.

Are pressure washers safe for cars?

Pressure washers can be safe for cars when used with wider nozzles and lower pressures. Choose a pressure washer with a suitable psi (pounds per square inch) rating, typically between 1200 and 2200, and use a wide spray nozzle (25 to 40 degrees) to minimize the risk of damaging the vehicle's paint and other surfaces.

What psi should I use to pressure wash my car?

For most cars, a psi between 1200 and 2200 is recommended. This range provides enough cleaning power to remove dirt and grime without damaging the car's paint or delicate surfaces.

Yes, you can use soap with a pressure washer. You'll want to make sure the soap is specifically designed for pressure washers and safe for use on vehicles. These detergents are formulated to be safe for your car's surfaces and can enhance the cleaning process.

Some pressure washers even include a dedicated soap tank that automatically pulls soap into the high-pressure stream without needing a separate foam canon.

How do I pressure wash my car without damaging the paint?

To avoid damaging the paint, use a pressure washer with a suitable psi rating (1200–2200), a wide spray nozzle (25 to 40 degrees), and maintain a safe distance from the car (at least 12 inches). Move the nozzle consistently and avoid focusing on one area for too long. Using the right detergent or soap designed for power-washing cars is also important. Ensure the soap you use won't interact with the finish on your vehicle.

Can I use a pressure washer to clean my car's engine bay?

Yes—just be extra careful to avoid damaging electrical components and sensitive parts. It's a good idea to cover sensitive parts before pressure washing. Use a lower psi setting (under 1800, ideally), a wider spray angle (40 degrees or more), and avoid directly spraying water on electronic components, connectors, and the air intake.

Why Trust Us

Hearst Autos combines the talent, resources, and expertise of three of the largest, most influential automotive publications in the world. The Gear Team has tested a wide variety of automotive products, parts, accessories, and gear, such as GPS trackers for cars, OBD2 scanners, and electric car chargers. We get our hands on each and every product we test. Most are purchased; some are supplied by manufacturers.

Hearst Autos doesn't need to game algorithms for traffic or promote lousy products to earn a buck. Instead, we're more concerned with our legacy, our reputation, and the trust that our readers have in Autoweek, Car and Driver, and Road & Track to deliver honest opinions and expert evaluations.

Visit our Tested & Trusted page to see the very best in automotive gear. Read more about our product testing and evaluation process here.

Remember, keep the pressure washer stream away from any exposed skin or appendages. Ending the day looking like this kielbasa is not a good time.