10 Best Gas Pressure Washers in 2019

best overall rating
  • 3200 PSI, 2.5 GPM
  • 25 foot hose
  • Maintenance free pump
premium choice rating
  • 3400 PSI, 2.8 GPM
  • Large, durable wheels
  • 4 interchangeable spray nozzles
great value rating
  • 2200 PSI, 1.9 GPM
  • Maintenance free pump
  • 3 interchangeable spray tips

Pressure washers are available in a wide range of different models, sizes and styles, ranging from smaller electric pressure washers to large, heavy duty gas pressure washers. If you’re looking to perform efficient, high powered cleaning of larger or more stubborn dirty outdoor areas, you’re going to want to buy the best gas pressure washer you can find. There are many different gas pressure washer models available in 2019, however, ranging from larger commercial or industrial gas pressure washers to smaller and more compact gas pressure washers for domestic home use. 

The question of which model of gas pressure washer is right for your personal needs is one which depends on exactly how and where you intend to use it, but there are a number of features that are worth considering when you’re looking to buy a gas pressure washer.

We’ve narrowed down the field of gas pressure washers to find 10 of the best gas pressure washer models out there, simplifying your decision to 10 of the very best gas pressure washers. Below, we’ve broken down our top 10 gas pressure washers in 2019, explaining the major features of each one to help you understand all you need to know in our best gas pressure washer reviews below.

Related; Karcher Gas Pressure Washer Review.

View the Best Gas Pressure Washer, Below.

best overall rating

1. SIMPSON Cleaning MSH3125 Gas Pressure Washer

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The Simpson Cleaning MSH3125 Gas Pressure Washer is a versatile and flexible high-pressure gas pressure washer for large scale, high-performance cleaning. Its steel tube frame is strong and durable for extensive, heavy use, and is coated with matte black powder to offer a high level of durability and resistance to rusting and corrosion.

The 10-inch wheels feature four-ply pneumatic tires, allowing this Simpson pressure washer to ride over rougher surfaces with ease, offering a high level of stability and shock absorption to protect the mechanism of the gas pressure washer from shock and impact during use or transport.

The OEM technologies axial cam pump is designed for minimal maintenance, making this gas pressure washer an easy model to keep running at optimal performance throughout its long lifespan.

Why We Like It
  • 3200 PSI, 2.5 GPM
  • 25 foot hose
  • Maintenance free pump
  • 5 interchangeable nozzle tips
  • Sturdy steel frame
PSI
3200 PSI
Dimensions
34.8 x 21 x 23.2 in
Weight
65 lbs
Our Verdict

High powered and customizable, the Simpson Cleaning Gas Pressure Washer is a powerful and effective tool for intense or large scale domestic cleaning or even commercial, industrial, or professional cleaning projects.

Editor Rating
premium choice rating

2. Briggs & Stratton 20505 Gas Pressure Washer

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Larger and more powerful than many other models of gas pressure washer, the Briggs and Stratton 20505 Gas Pressure Washer is a high-performance machine designed for intensive deep cleaning of stubborn dirt in domestic or industrial environments.

Its 250cc OHV engine produces an impressive 11.5 foot pounds of torque, helping this gas pressure washer to blast water with exceptional force using its 3400 PSI, 2.8 GPM compressor.

The wheels attached to the strong steel frame are designed to eliminate the risk of puncture or deflation, giving a strong, textured, rubberized surface for a high level of grip on uneven surfaces, even when wet from cleaning.

Why We Like It
  • 3400 PSI, 2.8 GPM
  • Large, durable wheels
  • 4 interchangeable spray nozzles
  • High powered engine
  • Detergent injection system
PSI
3400 PSI
Dimensions
21.9 x 24.7 x 25.3 in
Weight
67 lbs
Our Verdict

The Briggs and Stratton 20505 Gas Pressure Washer is a commercial gas pressure washer for high cleaning performance on larger, more intense cleaning jobs. It’s ideal for large scale cleaning work on either a domestic or industrial scale, offering excellent performance in any situation

Editor Rating
great value rating

3. Briggs & Stratton 20545 1.9Gpm

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The Briggs and Stratton 20545 1.9 GPM VS Washer is a large and durable gas pressure washer in an upright cart design for easy mobility in any outdoor environment.

Its large wheels are designed to eliminate the risk of punctures or tire deflation, offering a high grip rubberized surface for rough terrain or surfaces that are wet and slippery from the cleaning process.

This is a lower pressure gas pressure washer than many other options, with a maximum pressure of only 2200 PSI or 1.9 GPM, but this is more than sufficient for most domestic cleaning options, no matter the size or intensity of the project.

Why We Like It
  • 2200 PSI, 1.9 GPM
  • Maintenance free pump
  • 3 interchangeable spray tips
  • 25 foot hose
  • Large, durable wheels
PSI
2200 PSI
Dimensions
25 x 22 x 23 in
Weight
50 lbs
Our Verdict

Designed for durability and survival, the Briggs and Stratton 20545 1.9 GPM VS Washer is a tough, long lasting gas pressure washer that will help you to keep your outdoor spaces and equipment clean for years, even if used regularly and heavily.

Editor Rating

4. Powerstroke PS80544B Pressure Washer

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The Power Stroke PS80544B Pressure Washer is a large and high powered gas pressure washer for large scale outdoor cleaning. Its large 12 inch wheels allow smooth travel over even the roughest and most unstable of outdoor surfaces, with a rubberized coating to reduce the slip on wet surfaces during cleaning.

The 3000 PSI, 2.5 GPM compressor allows a high level of cleaning power to blast away even the most stubborn and hard to remove dirt and residue, while the 4 interchangeable nozzles allow a high level of control for different sizes of project or different levels of subtlety required.

Why We Like It
  • 3000 PSI, 2.5 GPM
  • 1 gallon onboard detergent tank
  • 4 interchangeable nozzles
  • 12 inch wheels
  • Integrated accessory storage
PSI
3000 PSI
Dimensions
21 x 20 x 37 in
Weight
56.1 lbs
Our Verdict

The large wheels and high-pressure compressor of the Powerstroke Pressure Washer make this model of gas pressure washer an excellent choice for larger outdoor projects on rougher terrain or other difficult surfaces.

Editor Rating

5. WEN PW31 Gas Pressure Washer

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The WEN PW31 Gas Pressure Washer is a large and powerful gas pressure washer, offering a compression power of 3100 PSI or 2.5 GPM. This high level of pressure makes this model of gas pressure washer an excellent choice for larger or more intense cleaning projects, while its extra long 30 foot reinforced hose adds to its versatility and reach for larger outdoor projects effectively.

The extra large 12 inch wheels mounted on the sturdy steel cart body of this gas pressure washer allow for smooth transport over rougher outdoor terrain, and the rubberized coating on the outside of the wheels ensures a slip proof, stable grip on wet surfaces during the cleaning process.

Why We Like It
  • 3100 PSI, 2.5 GPM
  • High powered 208 cc engine
  • 5 interchangeable nozzles
  • Large wheels
  • 30 foot hose
PSI
3100 PSI
Dimensions
21 x 21 x 40 in
Weight
67 lbs
Our Verdict

Large 12 inch wheels and a powerful 3100 PSI, 2.5 GPM compressor make the WEN PW31 Gas Pressure Washer a great choice for larger outdoor cleaning projects or lower level commercial or professional outdoor cleaning.

Editor Rating

6. Generac SpeedWash 7122 Pressure Washer System

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The Generac Speed Wash 7122 Pressure Washer System is a powerful gas pressure washer for domestic or commercial cleaning use. Its 3200 PSI, 2.7 GPM compressor offers a high level of water pressure for cleaning tougher and more stubborn areas of dirt, while the simple controls built into the ergonomically designed spray gun allow precision control for cleaning wood, concrete, or even cars with safety and ease.

The 4 included interchangeable nozzle tips allow for a higher level of precise control and customizability, and a number of additional attachments such as a power broom head offer further versatility, making this gas pressure washer one of the most flexible options on the market.

Why We Like It
  • 3200 PSI, 2.7 GPM
  • Ergonomic spray gun design
  • 4 interchangeable nozzle tips
  • 30 foot hose
  • Extra attachments included
PSI
3200 PSI
Dimensions
24.2 x 18.9 x 35.5 in
Weight
62 lbs
Our Verdict

Powerful and versatile, the Generac Speed Wash 7122 Pressure Washer System is a great choice for anything ranging from domestic cleaning to commercial or professional cleaning projects, thanks to its high level of customizability and its powerful compressor.

Editor Rating

7. SIMPSON Cleaning PS3228 PowerShot Pressure Washer

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A large and powerful model of gas pressure washer, the Simpson Cleaning PS3228 Power Shot Pressure Washer features a high powered 3300 PSI, 2.5 GPM compressor, allowing for intense deep cleaning of even the most stubborn areas of dirt.

This is a flexible gas pressure washer suitable for anything from painting prep, graffiti removal and mildew scrubbing to cleaning siding, driveways, fences, and concrete, thanks to its 5 Quick Connect interchangeable spray nozzle tips included with the gas pressure washer.

The pump built into the main body of this gas pressure washer is durable and powerful, offering years of high-performance cleaning power with minimal maintenance thanks to its range of protective design features.

Why We Like It
  • 3300 PSI, 2.5 GPM
  • 25 foot hose
  • 5 interchangeable spray nozzle tips
  • Sturdy steel frame
  • Commercial engine
PSI
3300 PSI
Dimensions
34 x 21 x 24 in
Weight
83.2 lbs
Our Verdict

The Simpson Cleaning Power Shot Pressure Washer is a high powered and versatile gas pressure washer suitable for almost any type of outdoor pressure washer cleaning project. It’s a great buy for commercial users or more intense domestic use.

Editor Rating

8. PowerBoss Gas Pressure Washer

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Powerful and flexible, the Power Boss Gas Pressure Washer is one of the best gas pressure washer models available for relatively large domestic cleaning projects. Its 3100 PSI, 2.8 GPM compressor gives a high level of water pressure for intense cleaning of stubborn and ingrained dirt.

Its long 25 foot hose, designed for a high level of flexibility and durability to survive extensive use at high pressures, allows you to reach inconveniently located dirt, while the 4 different interchangeable spray nozzle tips give a high level of customizability and control for precision cleaning of different materials requiring different levels of pressure or sizes of spray coverage.

Why We Like It
  • 3100 PSI, 2.8 GPM
  • Maintenance free pump
  • 4 interchangeable spray nozzle tips
  • 25 foot hose
  • 1 gallon onboard detergent tank
PSI
3100 PSI
Dimensions
24 x 22.5 x 20.5 in
Weight
62 lbs
Our Verdict

The PowerBoss Gas Pressure Washer offers a high level of water pressure and delivers on that effectively, with all pressure claims independently verified to ensure that this is indeed as good a model of gas pressure washer as the marketing claims.

Editor Rating

9. Duromax XP3100PWT Gas Powered Pressure Washer

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Offering a high level of cleaning power, the Duromax XP3100PWT Gas Powered Pressure Washer is a large and durable gas pressure washer for domestic or commercial use.

Its 3100 PSI, 2.5 GPM compressor allows easy removal of even tough, ingrained dirt, while the 6 included interchangeable spray nozzle tips give a high level of control over spray area and pressure for cleaning different surfaces that may require a lighter or narrower cleaning touch.

The durable welded steel frame protects the engine and allows easy transport, providing an inbuilt handle for the steel upright cart design.

Why We Like It
  • 3100 PSI, 2.5 GPM
  • Durable steel frame
  • 6 interchangeable spray nozzle tips
  • Onboard accessory storage
  • Quick change connectors
PSI
3100 PSI
Dimensions
24 x 20 x 39 in
Weight
75 lbs
Our Verdict

The Duromax Gas Powered Pressure Washer is designed for ease of use and comfort without compromising on its high-pressure cleaning performance.

Editor Rating

10. STANLEY SXPW2823 Pressure Washer

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The Stanley SXPW2823 Pressure Washer is a large gas pressure washer designed for ease of use and ergonomic comfort without compromising on cleaning power.

Its 2800 PSI, 2.3 GPM compressor gives excellent cleaning efficiency ideally suited for larger domestic pressure washer cleaning projects or smaller commercial cleaning tasks, while its ergonomic spray gun ensures that the Stanley gas pressure washer remains comfortable to use even for extended periods of time.

The four included interchangeable spray nozzle tips allow a fine level of control, ranging from a wide 40-degree spray to a focused turbo nozzle for high powered oscillating water jets.

Why We Like It
  • 2800 PSI, 2.3 GPM
  • 4 interchangeable spray nozzle tips
  • Ergonomic spray gun
  • 25 foot hose
  • Easy start overhead cam engine
PSI
2800 PSI
Dimensions
25.5 x 24 x 21.8 in
Weight
70 lbs
Our Verdict

Flexible, ergonomically designed, and relatively powerful, the Stanley SXPW2823 Pressure Washer is a gas pressure washer which balances effectively between a number of focal design points to provide a great, comfortable, middle of the road gas pressure washer experience.

Editor Rating

Gas Pressure Washer Buyer’s Guide

How to Start a Gas Pressure Washer?

Gas pressure washers may look large, industrial, and intimidating, but they are actually surprisingly simple to use once you know what you’re doing. There are a few simple steps that you can follow when starting up a gas pressure washer that will make your life far easier no matter what type of gas pressure washer you’re using. First, set up your gas pressure washer carefully. Ensure that it’s on a flat surface and that the filters are clean.

Connect a garden hose to your water supply, and the other end to your gas pressure washer’s water inlet.  Then, connect the high-pressure hose to the water outlet of your gas pressure washer. Plug the gun assembly to the other end of the hose, and attach your nozzle of choice to the other end of the gun.

Then turn on the water and squeeze the trigger on your spray gun to purge the system of excess air. Now you’re all ready to start up the washer. Open the fuel valve. This may already be open, so check which position it is in before you begin. Then, open the choke by moving it to the left, before doing the same to the throttle, moving it left to open it fully.

Turn the engine on with its activation system, and your gas pressure washer will begin to start up a little; the remaining steps need to be performed with extreme care, as the device has already been activated at this point. Hold the spray gun firmly, point it away from anything vulnerable, and squeeze the trigger to ease the pressure.

While you’re holding the spray gun trigger down, pull the recoil on your gas pressure washer’s engine. Finally, close the choke again by moving it to the right, and you’re ready to start cleaning with your gas pressure washer.

We think you’ll love these Karcher Pressure Washers.

What Type of Gas Does a Pressure Washer Use?

Most models of gas pressure washer are compatible with a wide range of different types of gas, much like any other smaller gas-powered mechanical device. There are a couple of guidelines worth following when choosing gas for your gas pressure washer, however, as different types of gas offer different levels of performance and different risks.

As a general rule, when choosing gas for a gas pressure washer, you should use clean, unleaded gasoline with a higher octane content. Anything with at least 87 octane should be fine, but make sure that it’s fresh, clean, and safe.

If you use your gas pressure washer regularly, it’s fine to use gasoline containing up to 10 percent ethanol, but anything higher than this should be avoided. If you don’t use your gas pressure washer regularly, however, ethanol can cause damage to the machinery, so it’s worth buying ethanol free gasoline in this case.

Related: Small Pressure Washer Review.

How to use a Gas Pressure Washer?

Gas pressure washers are easier to use than you might expect, as long as you follow a few simple guidelines. Most models of gas pressure washer operate in a similar manner, but it is always worth checking the user manual for your particular model of gas pressure washer before use to ensure that it operates as expected. First, prepare your pressure washer for use. Set it up stably on a secure, flat surface, connect up all of the hoses, and fill the gas pressure washer with gasoline and engine oil.

Hold the starting grip and pull firmly to start up the engine, making it ready to use for cleaning. Ensure that you’ve attached your preferred spray tip to the spray gun of your gas pressure washer before you begin to clean. Start cleaning with the spray tip of your hose positioned at least 2 feet away from the surface, before slowly and carefully moving it a little closer.

Gas pressure washers are powerful enough that holding the tip closer than 12 inches from the surface can lead to damaging whatever you’re trying to clean.  Maintain the position of the spray nozzle, holding it at a 45 degree angle to the surface. This will help to ensure that the debris you’ve loosened with the high pressure is blown away from you, rather than blasting back onto you and the areas you have already cleaned.

Spray in side to side sweeps, moving evenly, and ensuring that you don’t hold the spray nozzle in one place for an extended period of time.  If using detergent, spray it evenly across the surface and leave it for 3 to 5 minutes to soak in (but avoid leaving it long enough that it dries) before you rinse your surface.

Then, to finish, follow the instructions in your gas pressure washer’s user manual for flushing traces of detergent out of your system. All models of gas pressure washer operate differently for this feature and require different guidelines, so reading the manual is always the correct option for understanding this part of the system!

Expert Tip

Gas pressure washers offer a far higher level of cleaning power than standard garden hoses, but that increased power comes with a much higher safety risk. Always wear protective gear when using a gas pressure washer, particularly safety goggles and protective footwear!

Did you know?

Gas pressure washers are generally more high pressure than electric pressure washers. This makes them an excellent choice for larger domestic cleaning projects or even commercial or professional cleaning use, although they’re also significantly heavier than their electric counterparts.

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