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6 Best Gas Pressure Washers to Blast Away Grime in Seconds

Find the best gas pressure washer to tackle all your heavy-duty outdoor clean-up jobs, including making your dirty driveway look brand new.

Our editors and experts handpick every product we feature. We may earn a commission from your purchases.

6 Best Gas Pressure Washers To Blast Away Grime In SecondsVIA MERCHANT

When it’s time to take on a tough outdoor cleaning job, like washing a stained deck, dirty siding or filthy driveway, nothing works better than a gas pressure washer. These washers deliver higher water pressure than electric models—some even reaching more than 3,000 pounds per square inch (PSI)!

The best part is that using a gas pressure washer is fun! Spraying off grime with a powerful force of water is so satisfying, you’ll become hooked to finding new ways to use your pressure washer. Just keep in mind that gas washers require more water: 2 to 3 gallons per minute (GPM).

We’ve researched the best gas pressure washers for all your outdoor cleaning needs.

The Best Gas Pressure Washers

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Simpson Megashot Gas Pressure Washervia merchant

Best Overall Gas Pressure Washer

Simpson MegaShot Gas Pressure Washer

We chose the Simpson MegaShot gas pressure washer as our pick for the best overall best pressure washer because it delivers durability and power without sacrificing lightweight portability. It sprays with an impressive 3,200 PSI at 2.5 GPM—powerful enough for nearly any outdoor cleaning task.

And while it has an extremely durable welded steel frame, the compact design means it’s lightweight enough to easily transport around your property. It also features five quick-connect nozzle tips, an ergonomic spray gun and 10-inch pneumatic tires.


  • Powerful 3,200 PSI pump
  • Includes five quick-connect nozzles
  • Thermal relief to prevent overheating
  • Features a Honda GC190 premium residential engine


  • Louder than other models
  • Features detergent hose rather than the more convenient separate detergent container

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Teande Gas Pressure Washervia merchant

Best Budget Gas Pressure Washer

Teande Gas Pressure Washer

This Teande gas pressure washer compares to our overall best pick, but costs over $100 less! It delivers the same 3,200 PSI, though without the same premium Honda engine. It’s quick to assemble and the tall steel frame makes it easy to maneuver. It also features two soap tanks with adjustable switches for automatic detergent mixing. (Having trouble with your pressure washer? We’re here to help.)


  • Affordable price
  • Powerful 3,200 PSI pump
  • Has two detergent tanks
  • Can be moved by one person


  • Only includes three nozzles
  • Some reviewers have difficulty starting the engine

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Simpson Powershot Gas Pressure Washervia merchant

Best Heavy-Duty Gas Pressure Washer

Simpson PowerShot Gas Pressure Washer

If you regularly take on the toughest outdoor power washing jobs, like removing peeling paint or cleaning an algae-covered wall, you need the Simpson PowerShot gas pressure washer. This beast delivers a whopping 4,000 PSI at 3.5 GPM. The low-maintenance Honda GX270 engine means optimum performance, and the PowerBoost Technology provides higher pressure at the nozzle than other models. You’ll also reach farther with the 50-foot hose, which is twice as long as most other pressure washer hoses.


  • High0powered at 4,000 PSI
  • Features a premium Honda engine
  • Has PowerBoost Technology
  • Includes a 50-foot hose


  • Heavier and bulkier than other options
  • No detergent tank

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Westinghouse Wpx3200 Gas Pressure Washervia merchant

Best Eco-Friendly Gas Pressure Washer

Westinghouse WPX3200 Gas Pressure Washer

Even though an electric pressure washer is more eco-friendly than a gas-powered version, some gas washers are still better than others for the environment. Westinghouse’s gas pressure washer is CARB-compliant, meaning the pressure washer meets the current emission standards and produces fewer harmful emissions, toxins and particulates. It still delivers on power, though, offering 3,200 PSI, 2.5 GPM and a 212cc four-stroke engine. It’s easy to start, has a large fuel tank and doesn’t require extensive assembly.

Verified purchaser, Steve G. Meyer, writes in his five-star review, “Today I blasted our entire driveway, front walkway, steps and back patio, along with some siding and the hot tub lid. Simply put, this is an awesome little unit. Overall a great value.”


  • CARB-compliant for better air quality
  • Easy to assemble
  • Never-flat wheels
  • 13,200 Amazon ratings and a 4.7-star average


  • Higher vibration than other models
  • Certain parts get hot while in use

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5 / 6

A Ipower Gas Powered Pressure Washervia merchant

Quietest Gas Pressure Washer

A-iPower Gas Powered Pressure Washer

The lower noise level of the A-iPower gas pressure washer compared to other pressure washers means you can clean all day without listening to loud, annoying engine sounds. It’s a little smaller and more lightweight than other power washers on this list, coming in at 2,700 PSI and 2.3 GPM. It also features a thermal relief valve to avoid overheating and three quick-connect nozzles.

“This thing is awesome. Great power and easy to use. Blasted my truck that was covered in mud with no problems. I wouldn’t get it too close to the paint, as it is very strong. You will save a ton in trips to the local car wash,” writes five-star reviewer, Ricky Simon.


  • Has a quiet engine
  • Weighs just 57 pounds
  • Has a thermal relief valve
  • CARB-compliant


  • Not as powerful as other models
  • No detergent tank

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Duromax Cold Water Pressure Washervia merchant

Best Light-Duty Gas Pressure Washer

DuroMax Cold Water Pressure Washer

This light-duty power washer is best for jobs like cleaning the grill, cars, windows and patio furniture without damaging the finishes. This DuroMax gas pressure washer delivers 2,700 PSI and 2.3 GPM, which is more than enough to blast away dirt. It sports five quick-connect nozzles for versatility and a built-in detergent reservoir that helps deliver a steady flow of soap into the output stream.


  • Designed for light and medium jobs
  • Has a durable welded frame
  • Includes five quick-connect nozzles
  • Affordable


  • Features some plastic parts

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What to Consider When Buying a Gas Pressure Washer

First and foremost, consider the washer’s PSI. Power washers run a pump that pressurizes the water from your garden hose to 1,000 pounds or more, then forces it out through a spray wand. The higher the pressure, the tougher the cleaning jobs it can tackle. Don’t forget to use safety equipment (it’s a common pressure washing mistakes).

Decide how much you’re willing to spend. The cost of a gas-powered pressure washer ranges from a few hundred to more than a thousand dollars, depending on the pressure they deliver, their features and the engine and pump quality.

How We Found the Best Gas Pressure Washers

As shopping experts, our only job is to help you find a winning product. We start with the research and reporting basics—what products are made of, what they look like and how much they cost—to ensure that we’re only recommending the buys that are worth your time and money. Then, we research the features that speak to the product’s quality, taking advice from industry insiders and subject matter experts on what makes a product a smart value (or worthy of a splurge). Finally, we do the work of combing through user reviews to see how real people interact with the product, and if it stands up to the test.


How do you start a gas pressure washer?

First, clean any debris from the inlet filter. Then, connect the accessories, like the garden hose and pressure wand. Run water through the washer for one minute to prime the system and remove any air. Squeeze the spray wand trigger to bleed water pressure. Finally, pull the starter cord to start the engine and start spraying.

What kind of gas does a pressure washer use?

Most run on regular unleaded gasoline. There’s no need to mix a gas and oil solution.

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Erica Young
Erica Young is a freelance writer and content creator, specializing in home and lifestyle pieces. She loves writing about home decor, organization, relationships, and pop culture. She holds a bachelor's degree in Journalism and Mass Communication from Arizona State University, the Walter Cronkite School of Journalism and Mass Communication.