The Best Gas Pressure Washer

Last updated on December 11, 2018

We looked at the top 7 Gas Pressure Washers and dug through the reviews from 42 of the most popular review sites including BestReviews, Consumer Reports, Ope Reviews, Family Handyman, Popular Mechanics, New York Times Wirecutter, Pro Tool Reviews, The Spruce and more. The result is a ranking of the best Gas Pressure Washers.

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We looked at the top 7 Gas Pressure Washers and dug through the reviews from 42 of the most popular review sites including BestReviews, Consumer Reports, Ope Reviews, Family Handyman, Popular Mechanics, New York Times Wirecutter, Pro Tool Reviews, The Spruce and more. The result is a ranking of the best of the best Gas Pressure Washers.

The Top Gas Pressure Washers

Our Take
Experts Included
Pros
Cons
  The Best Overall

Ryobi

3000 PSI

Overall Take

The Ryobi 3000 PSI is powerful, easy to maneuver (it even goes up stairs without hassle) and user-friendly. It also has a powerful Honda engine.

Experts Included
Consumer Reports, New York Times Wirecutter, The Spruce, Popular Mechanics, Pro Tool Reviews, Family Handyman and 2 more. Along with user reviews from Home Depot.
Pros
"Easy to operate its controls, very easy to move and transport, and to store it."
Cons
"It’s heavier, it’s louder, and it needs fuel, maintenance, and proper storage in the off-season."

Generac

OneWash 3100 PSI

Overall Take

The Generac OneWash 3100 is not only super easy to use, but it's extremely powerful. A unique feature is that it lets you easily adjust the pressure.

Experts Included
Consumer Reports, Popular Mechanics, Family Handyman and 3 more. Along with user reviews from Amazon and Home Depot.
Pros
"Its best feature is the variable idle speed that lets you adjust the pressure from 2,000 to 3,100 psi."
Cons
"Unit always on (generates noise and may overheat)"

Simpson

Megashot 3100 PSI

Overall Take

The Simpson Megashot 3100 PSI is made out of steel, which makes it super solid. It also scored high due to its portability and its power.

Experts Included
BestReviews, Consumer Reports, New York Times Wirecutter, The Spruce, Family Handyman and 7 more. Along with user reviews from Home Depot.
Pros
"Easy to move and transport. Easy hose storage. Wand very easy to remove and use"
Cons
"Has been known for occasional units failing to run properly or at all."
  The Best Value

WEN

3100 PSI

Overall Take

This durable Wen 3100 PSI model offers the best value among gas pressure washers. Its large wheels also make it easy to transport across all types of terrain.

Experts Included
BestReviews and 3 more. Along with user reviews from Amazon and Home Depot.
Pros
"Large, never-flat wheels for all-terrain maneuverability."
Don't just take for granted what one reviewer says. DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
14

Products Considered

We identified the majority of the gas pressure washers available to purchase.
7

Products Analyzed

We then selected the leading and most products to score.

View All Product Rankings

42

Expert Reviews & Ratings Included

Expert review and analysis from some of the most respected sources including: BestReviews, Consumer Reports, Ope Reviews, Family Handyman, Popular Mechanics, New York Times Wirecutter, Pro Tool Reviews and The Spruce.

7,370

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon, Home Depot.

DWYM is the #1 product review aggregator. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

Ryobi 3000 PSI

Expert Summarized Score
9.6
8 expert reviews
User Summarized Score
9.2
680 user reviews
The DWYM Consensus

The Ryobi 3000 PSI is powerful, easy to maneuver (it even goes up stairs without hassle) and user-friendly. It also has a powerful Honda engine.

What experts liked
Easy to operate its controls, very easy to move and transport, and to store it.
- Consumer Reports
This gas-powered Ryobi lets you wash things you can’t reach with an extension cord, and it cleans twice as fast as an electric model.
- New York Times Wirecutter
Though branded a Ryobi, it’s powered by a Honda GCV160 engine.
- The Spruce
The tall handle, tall tires, and configuration like a hand truck's make the Ryobi the best stair climber of our test
- Popular Mechanics
While not all Pros really consider Ryobi when looking for a pressure washer, it’s the Honda engine that gives me the confidence to pull the trigger.
- Pro Tool Reviews
The unit has some very nice features starting with an idle down feature which idles the unit down when in standby mode and helps save gas and also makes the unit quieter when idling.
- Tools In Action
Like the Simpson, this machine impressed us enough to win our Best Overall award. Its hose is our favorite by far.
- Family Handyman
What experts didn't like
Hose less convenient to store than others
- Consumer Reports
It’s heavier, it’s louder, and it needs fuel, maintenance, and proper storage in the off-season.
- New York Times Wirecutter
Experts give it tip-top marks for cleaning and very good ones for power and ease of use, but note that it is a bit on the noisier side
- The Spruce
Lightweight is relative, of course, since the unit still weighs 62 pounds. But either one of us can manhandle it in or out of a truck with relative ease.
- Pro Tool Reviews
Not that I have any complaints about this unit, but if I did I would really like to see a 50′ hose.
- Tools In Action
Our only beef is that the pump connections are right at ground level.
- Family Handyman

The Best Bang For Your Buck

WEN 3100 PSI

Expert Summarized Score
7.9
4 expert reviews
User Summarized Score
8.6
274 user reviews
The DWYM Consensus

This durable Wen 3100 PSI model offers the best value among gas pressure washers. Its large wheels also make it easy to transport across all types of terrain.

What experts liked
Large, never-flat wheels for all-terrain maneuverability.
- BestReviews
It’s more for recreational use than commercial use, but the pump in the pressure washer is very durable, which many argue is more important than the actual engine.
- Painter Guide
What experts didn't like
Some reports of lost pressure and engine issues after several weeks or months of ownership.
- BestReviews

Overall Product Rankings

1. Ryobi 3000 PSI
Overall Score: 9.5
Reviews Included: 9

2. Generac OneWash 3100 PSI
Overall Score: 8.9
Reviews Included: 8

3. Simpson Megashot 3100 PSI
Overall Score: 8.4
Reviews Included: 15

4. PowerShot 3300 PSI
Overall Score: 8.3
Reviews Included: 6

5. DeWalt Professional 3400 PSI
Overall Score: 8.1
Reviews Included: 4

6. WEN 3100 PSI
Overall Score: 8.1
Reviews Included: 6

7. 20655 3200 PSI
Overall Score: 7.6
Reviews Included: 7

An Overview On Gas Pressure Washers

If you really want to make the exterior of your home sparkle, you’ve likely considered investing in a gas pressure washer to keep it spotless. From your driveway to your siding (and lots of places in between), a gas pressure washer can quickly and easily rinse away years of build-up and grime.
A gas pressure washer is one that uses gas instead of electricity for power. Since you don’t have to plug your gas pressure washer into an outlet, you can easily transport it anywhere you need to blast some dirt away — there’s no hassle of getting out an extension cord or trying to stay near an outlet.

Gas pressure washers won’t cause your electricity bill to spike, either. You’ll simply refill your gas pressure washer with gas from a gas pump, much like you would a gas lawn mower. They’re also extremely easy to use, once you’ve read through the instruction manual and got the hang of things. You’ll be powering through stubborn dirt on your fence, your gutters, your windows and other areas of your home or business in no time.

DWYM Fun Fact

To fully understand the awesome power (and danger) a gas pressure washer produces, it’s helpful to compare it to your standard garden hose. Case in point: the water pressure of your garden hose is somewhere in the neighborhood of about 50 pounds per square inch. Your pressure washer? It’s closer to 1,000 to 4,000 pounds per square inch, which is a huge difference. That’s also why it’s super important to follow all the safety protocols in the user manual so that no one gets hurt.

The Gas Pressure Washer Buying Guide

  • Regular maintenance is critical for keeping your gas pressure washer working like new. You’ll want to follow all of the maintenance and cleaning processes listed in the user manual to ensure that your gas pressure washer has a long life without issues.
  • If you’re just getting started with your new gas pressure washer, consider testing it on a small, hidden patch of whatever surface you’re trying to clean. It can take a few tries to really get the hang of pressure washing, so this will give you a place to practice until you’re confident in your abilities.
  • There’s a difference in power among gas pressure washer models. Typically, you can separate them into broad categories: light-duty, medium-duty and heavy-duty. The power of a gas pressure washer will be labeled in pounds per square inch, typically written as “PSI.” In essence, this number tells you about your pressure washer’s ability to blast or strip dirt off of a surface.
  • In general, light-duty pressure washers have a PSI of up to 1900 and are good for light jobs around the house, like washing your car. A medium-duty pressure washer might have a PSI between 2000 and 2800, whereas a heavy-duty model typically has a PSI above 2800.
  • Another important metric to know before purchasing a gas pressure washer is its volume, which is labeled in gallons per minute, or “GPM.” This number is just as important as the pressure, as you need the flow of water to move the dirt and grime away from the surface you’re cleaning.