5 Best Gas Pressure Washer 2020 – Reviews & Top Rated

best gas pressure washer

Compared to the electric motor, the gasoline engine is more suitable for heavy jobs and remote areas without electric source. With higher durability and innovative features, the gas pressure  washers have recently become the most popular choice of both homeowners and professionals.

If you are now shopping for the best gas pressure washer, we’re here to help you!​

5 Best Gas Pressure Washers 2020



​​SIMPSON Cleaning PS3228 PowerShot Gas Pressure Washer

WEN PW2800 Pressure Washer

​Generac 6882 Pressure Washer SPEED

​SIMPSON Cleaning CM60912 Clean Machine Gas Pressure Washer

​Champion Dolly-Style Gas Pressure Washer


Best for Heavy-Duty: SIMPSON Cleaning PS3228 PowerShot Gas Pressure Washer 

The Simpson PS3228 PowerShot delivers high performance in both residential and industrial cleaning. This gas pressure washer especially reveals its outstanding features in professional cleaning projects such as paint preparation, graffiti removal, deck cleaning or wood restoration.

With an industrial triplex plunger pump and a powerful Honda GX200 commercial engine, this unit can meet the most rigorous demands of the cleaning.

More than expected, the engine also includes an alert sensor that notifies the time to change engine oil.

The frame of this pressure washer is made of solid steel that makes it strong enough to carry the big fuel tank up to 3.1 liters. In addition to that, the large pneumatic tires keep the machine balanced and stable when moving in various terrains.

​If buying e the gas pressure from Simpson, the customers can benefit from the warranty program which is much longer than other brands, including 3 years for the engine, 5 years for the pump, 10 years for the frame and 90 days for the accessory.


  • ​Incredibly powerful engine
  • ​Innovative boost technology pump
  • ​Diversified quick-connect spray nozzles
  • ​Ease to start
  • ​Long hose


  • ​Quite heavy and cumbersome

SIMPSON Cleaning PS3228 is the best choice for professional-level cleaning. Coming with the premium engine and pump as well as high-quality accessories, this model offers great value in the heavy-duty category.


​Best for a Limited Budget: WEN PW2800 Pressure Washer

Powered by a 173 cc 4-stroke OHV engine, the WEN PW2800 Pressure Washer delivers 2800 PSI and allows water to flow at a rate of 2.3 GPM despite the affordable price.

With the engine like that, this machine can provide optimum performance for the medium cleaning duty, for example cleaning cars, RVs, fencing, decks, and concrete.

Unlike other pressure washers equipped with triplex plunger pumps for some heavy tasks, this model features the axial camp pump that is generally less powerful but more economical.

Indeed, you may not find any gas pressure washer for residential use as good as the WEN.

You can even move this portable machine around your yard to blast away any kind of dirt. The big solid wheels (12-inch) make it very easy to roll over a variety of terrains. Instead of pneumatic wheels, the solid tire equipped is claimed to be more durable.

We complain about the wheels a bit. The large wheels seem a little wonky. But, this is acceptable in this price range.

The WEN PW2800 also includes a package of necessary accessories like a 25-foot reinforced hose, an onboard soap tank, and four quick-connect spray gun. These tools are sufficient enough to meet all your needs in different kinds of cleaning projects.

Because the machine is a product of WEN – a U.S. company for durability, you certainly benefit from the certified warranty program in two years. Along with that are a friendly customer service line and a nationwide network of skilled service technicians.


  • ​Long hose
  • ​Fuel shut-off valve for longer machine’s lifespan
  • ​Quiet operation


  • ​No lock for trigger

The WEN PW2800 Pressure Washer is built to distribute high efficiency for residential uses. Furthermore, this unit is also a great bargain compared to a similar gas pressure washer on the market.


​Best for Multiple Tasks: Generac 6882 Pressure Washer SPEED 

The Generac Speedwash 6882 offers the incredible 196cc OHV engine and lots of improvements, just take a look at its features and you will see.

It features a 30-feet flex hose, the ergonomic spray gun, and 4 quick-change nozzles, providing optimum flexibility in any cleaning conditions.

Plus, the ergonomic spray run is designed with the innovative pressure adjustment dial for 4 different settings  marked with an intuitive pictogram – car, wood, concrete and soap.

This machine even comes with stunning additional attachments that enhance the cleaning speed up to 50%. For example, the power broom can clean the large surface four times faster while the turbo nozzle can remove the most stubborn dirt 30% faster than a standard nozzle.

We only complain a bit about the wheel design, there is a little hard to move.

 Finally, the product provides the limited 3-year warranty for the unit from the day of purchase.


  • ​Ability to operate for a long time
  • ​Easy portability
  • ​Easy to start
  • ​Convenient power settings on wand


  • ​Bunky design
  • ​Weak plastic parts

All in all, the Generac Speedwash 6882 is a gas pressure washer worth your investment. This machine not only includes plenty of innovative and user-friendly features for better cleaning results but also offers a reasonable price.


​Best for Flexi​​​​bility: SIMPSON Cleaning CM60912 Clean Machine Gas Pressure Washer 

Like other gas pressure washers of the Simpson brand, the CM60912 Clean Machine is equipped with a reliable and efficient engine. The  149cc SIMPSON OHV engine with a large recoil can deliver up to 2400 PSI to clean tough surfaces with ease.

The convenient design with the 38-pound weight allows the user to maneuver  quite easily. It combines with the exceptional frame, so you can fold  and handle for quick and convenient storage.

Although this model has all the necessary accessories like the long high-pressure hose, ergonomic spray gun, there are only three spray nozzles so that the selection of pressure output is quite limited.  

​Some are concerned about the short warranty for two main components, namely 2 years for the engine and 1 year for the pump. However, you don’t need to worry. This model is built with long-term durability in mind.


  • ​Highly-durable steel frame
  • ​Maximum portability
  • ​Quiet operation
  • ​Easy one-pull start


  • ​Lots of fuel consumption

The SIMPSON Cleaning CM60912 Clean Machine only features basic components of a typical gas pressure washer but still get all your household chores done beyond your expectation. It  offers affordable price for a high-performance pressure washer at home.


Best for Medium Cleaning Tasks: Champion Dolly-Style Gas Pressure Washer

This Champion Dolly-Style gas pressure washer can deliver impressive performance no matter what your outdoor cleaning project (medium cleaning jobs) is. To do this, the machine is built with a robust 224cc single-cylinder OHV engine which can generate 3200 PSI water pressure.

Although the oil capacity is quite small (only 0.6 quarts), the engine is well protected with a sensor that automatically shut off in case of under prescribed oil level.

What’s more, the high-quality axial cam pump can produce 2.4 GPM water flow and ensure steady nozzle pressure during operation.

All accessories like the pressure hose, trigger gun, and spray wand are stored onboard to make sure all necessary tools are within the users’ reach.

Furthermore, this gas pressure washer also provides five quick-connect nozzles (0˚, 15˚, 25˚,40˚, soap) to adjust water flow and pressure for any type of cleaning job.

The company offers a 2-year limited warranty for both pressure washer and pump. However, the outstanding service you need to know is the lifetime technical support for free. 


  • ​Exceptionally powerful engine
  • ​Compact design
  • ​Easy to maintain
  • ​EPA-certified and CARB compliant
  • ​Free lifetime technical support


  • ​Difficult pulling of the starter cord

The Champion 3200-PSI 2.4-GPM Dolly-Style is a cost-effective gas pressure washer for both residential and commercial uses. With plenty of practical features and high-quality components, you will love the excellent results in any cleaning projects.

Bottom lines

All the above best gas pressure washers are ideal for your home uses. Of this, we strongly recommend the Simpson PS3228 PowerShot. It’s an excellent machine with a powerful engine and premium equipment. Indeed, it's a great gas pressure washer for the money!

Our quick research of engine power, accessories, manufacturer's warranties, and price can help you to choose the right one from dozens of different gas pressure washer on the market. If you find this article helpful, please share it with your friends!