Best Gas Pressure Washers for 2021

By Power Tools

March 7, 2021

Tired of your car looking dirty? Wondering how to clean your patio? Embarrassed to show your grimy yard furniture to your friends? 

There is only so much constant scrubbing and harsh chemicals you can do before your arms begin to tire. And whatever you’re cleaning is just looking scratched and as dull as it did before. It’s not always financially possible to hire a professional cleaner all the time. 

Sounds like you need a gas pressure washer! Pressure washers are the ultimate domestic cleaning equipment, as they work to clean objects with water and detergent at extremely high pressure. 

They are a true life and money saver and can be used to clean a variety of dirty surfaces – from cars to driveways, and roofs to gazebos. 

Here are the best gas pressure washers!

Best Gas Pressure Washers

Our top pick: Westinghouse Outdoor Power Equipment WPX2700 Gas Pressure Washer

This Westinghouse Outdoor Power Equipment pressure washer is as high-pressure as it gets. It features a nozzle with 4 different tips (ranging from the strength of the water and more soap), a built-in soap tank to hold detergent, and a 3.3L fuel capacity for long durations of power washing. 

This pressure washer is made of a durable steel frame that is resistant to impact from high-pressured water. It has a high portability factor with its handle and 12” wheels to move the washer around a large yard, driveway, garage, or factory. 

As this pressure washer is controlled by a gas engine, it can clean a surface within minutes by providing 2.5 gallons of water and detergent in a minute. What’s more, this water can spray up to 25ft with the EndraGrasp spray gun. 


  • Sprays 2.5 gallons of water and soap a minute for quick cleaning
  • 4 changeable nozzle tips for a range of cleaning purposes
  • Wheels and handle for easy portability


  • Hose may be sensitive to the heat from the engine, so keep these separate 

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Generac 3100 PSI Gas Pressure Washer

This Generac pressure washer is all about convenience. With a one-touch push start, pressure washing has never been faster to start.

It comes with an auto-choke to prevent potential problems and hassle during startups, providing a reliable and quick startup. The hose can extend up to 25ft for a variety of cleaning purposes.

This pressure washer comes with 4 quick-change nozzle tips for different cleaning purposes – from fragile to stubborn surfaces. The detergent can also be dispensed from one of the nozzle tips, which comes from the built-in detergent tank that can be removed easily for cleaning. 

The design of this pressure washer is ergonomic and user-friendly with its padded handle and 10” wheels for quick portability. The spray gun is also easy to handle with a cushion grip, and simply slots into its compartment after use – making this pressure washer a compact design for easy storage. 


  • 4 nozzle tips for versatile cleaning
  • Sprays 2.5 gallons of water per minute for quick cleaning
  • Compact and comfortable with a slim design and cushion-grip handles
  • Electric starter button for easy startup


  • Some confusion with the startup – the button requires 2 pushes to turn it on and start

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Westinghouse Outdoor Power Equipment WPX3200 Gas Powered Pressure Washer

This Westinghouse Outdoor Power Equipment pressure washer stands out for its 5 changeable nozzle tips, each of which providing a different strength of water and a soap applicator. The detergent is dispensed from a built-in 1.6L soap tank that can be easily removed for cleaning and refilling. 

Offering 2.5 gallons of water per minute and a maximum hose length of 25ft, this pressure washer is ideal for a range of uses from professional to domestic. The engine itself has 4 cycles for heavy-duty cleaning and can hold up to 3.3L of fuel. 

Made of a steel frame, this pressure washer is durable and compact for long usage and easy storage. It is also easy to transport and move around whilst washing with its 12” wheels. 


  • 5 nozzle tips to clean a range of surfaces at different strengths
  • The 4-cycle engine is ideal for heavy-duty cleaning
  • Compact design with wheels for easy transportation


  • May overheat during long usage in hot temperatures 

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A-iPower APW2700C Gas Powered Pressure Washer

If you’re conscious about not wasting too much water, the A-iPower pressure washer only uses 2.3 gallons of water per minute – 0.2 gallons less than other models on our list.

This is still powerful enough to remove stubborn stains and dirt. With 3 quick-connect changeable nozzle tips, this pressure washer offers a variety of cleaning purposes depending on the strength of the surface. 

This pressure washer is more compact than the previous units on our list, as it is 22 inches tall and 8 inches wheels – which is most ideal for portability and storage.

The grip handle is cushioned and ergonomically designed to provide easy moving and usage, so the user won’t get uncomfortable during long cleaning sessions. 


  • Uses less water per minute so is less wasteful
  • Compact design for easy portability and storage 
  • Ergonomic handles for comfortable usage


  • Slightly less powerful PSI (pounds per square inch) than other models

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TACKLIFE 3200PSI Gas Pressure Washer

The TACKLIFE pressure washer features 5 changeable nozzle tips and 2.4 gallons of water per minute for a variety of cleaning operations.

Whilst other models offer 2.5 gallons, this pressure washer offers 3200 pounds per square inch of cleaning power. The hose can reach up to 25ft for a range of cleaning uses, from garages to driveways. 

At 38 inches tall with 11-inch wheels, this is one of the larger pressure washers on our list. Still, at only 15” wide, its design is compact enough to be easily moved around a yard and stored away in the garage with a minimal footprint.

Remember there is no wire in gas pressure washers, so there is no risk of tangling or tripping!


  • 5 nozzle tips with adjustable strengths for different cleaning purposes
  • High PSI for quick cleaning
  • Slim design for easy storage


  • Pull rope startup may be confusing for beginners compared to electric startups

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Simpson CM60912 Gas Pressure Washer

This Simpson pressure washer produces 2 gallons of water per minute, which is generally the minimum for gas pressure washers. Though it may be the minimum, this unit is still powerful enough to clean away dirt, stains, and grime! 

This pressure washer is made of a durable steel frame with a cushioned handle that can be folded – ideal for compact storage in a shed or garage.

The pump head comes with 3 changeable nozzle tips including 0-degree, 25-degree, and a soap nozzle for a variety of different strengths. As the hose can reach up to 25ft and is kink-resistant, the high-pressure water can be used anywhere in a large yard. 

As the power of this product is not as strong as other gas pressure washers, this one is most ideal for more delicate surfaces such as yard furniture and gazebos. 


  • Ideal for yard furniture, gazebos, and less stubborn stains
  • Kink-resistant 25ft long hose for cleaning in large areas
  • Foldable handle for compact storage


  • Not as powerful as other gas pressure washers

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TEANDE 4200PSI Gas Pressure Washer

This gas pressure washer stands out on the market for being one of the most powerful. With 4200PSI and the ability to use 3 gallons of water per minute, there isn’t a stain stubborn enough that this washer cannot clean.

Also fitted with two 0.7L detergent tanks, this washer can clean dirty surfaces within seconds to minutes. 

What’s more, this pressure washer is equipped with 5 changeable nozzle tips to suit different cleaning tasks. It is made of a steel frame with detachable wheels for simple transportation, which can be removed for safety in storage. With a 20ft long hose, there’s nothing this pressure washer cannot clean. 


  • Very powerful with 4200PSI and 3GPM
  • Dual detergent tanks for quick and thorough cleaning
  • 5 changeable nozzle tips for different cleaning tasks


  • 3 gallons of water wastes more water, though it does the work faster

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Champion Power Equipment Gas Pressure Washer

This Champion Power Equipment pressure washer is the most powerful pressure washer on our list. Able to spray 4 gallons of water per minute, this product can clean stubborn stains within seconds.

As this is such a high volume of water, it is not recommended for delicate surfaces or for people who are conscious about wasting water. 

This product is equipped with a 50ft hose, which makes it versatile for literally any situation – from domestic to professional cleaning. There are also 5 changeable nozzle tips for a variety of cleaning tasks, which help to control the 4GPM. 

Due to the power of this product, it is the largest pressure washer on our list which may be a problem for storage. If you are concerned about the power of this product, there are various other versions of this to suit each requirement. 


  • Extremely powerful with 4200PSI and 4GPM
  • 50ft long hose for large cleaning areas
  • 5 changeable nozzle tips to control the water pressure


  • 4GPM means more water is wasted
  • Large product will take up more storage space than other models

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Buyer’s Guide

Gas vs Electric

Pressure washers that are run by a gas motor are generally more powerful than those run by an electric engine. This is because gas motors can hold a larger amount of fuel, which can generate more high-pressure water in a minute.

Where electric engines can spray 1-2 gallons per minute, gas motors can produce between 2-4 gallons per minute. This allows for faster cleaning on tougher stains and dirt, though it has the potential to be damaging to delicate surfaces.

Electric engines are generally smaller, lighter, cheaper, and quieter than gas motors. This is what makes them appealing for lighter jobs, however, they aren’t so suitable for heavy-duty jobs. 

The main downside to gas motor-run pressure washers is that they tend to be larger and louder. This is purely down to the power of the machines. They are also recommended for professional and experienced users, as they can damage easily if they are mishandled. 


As gas pressure washers are generally bulkier and heavier than electric pressure washers, it’s important to consider how portable they are. Fortunately, gas pressure washers have thick and tall wheels and a handle to pull the washer around. 

It’s important to consider the distance of ground you intend to clean, as the length of the high-pressure hose can be the make or break.

Gas pressure washer hoses tend to be anywhere between 20-50ft long, which can be hugely beneficial for cleaning a large area as you won’t have to pull the washer everywhere you go. 


You’ve probably seen “PSI” and “GPM” in your search for a gas pressure washer, so here is what they mean. 

PSI stands for “pounds per square inch”, and indicates the energy used to push the water to the surface. The higher the figure, which is usually around 3200 for a gas pressure washer, the more powerful the washer is. 

GPM stands for gallons of water per minute. The more gallons, the faster the water can clean a surface. Anything between 1-2 GPM is ideal for light cleaning jobs such as yard furniture and semi-dirty patios.

There are 3-4 GPM washers available, which are more suitable for tougher stains and heavy-duty work. 

What a Gas Pressure Washer Can Clean

As gas pressure cleaners are more powerful than electric pressure cleaners, they are better suited for heavy-duty cleaning. This includes: 

  • Removing paint
  • Cleaning roofs
  • Cleaning gardening equipment such as lawnmowers
  • Cleaning gazebos, patios, and decks
  • Cleaning garage doors and sliding
  • Cleaning dirty grills

Investing in a gas pressure washer can be more cost-effective than hiring professional cleaners, as you can use it whenever you like. They don’t even need to be used too often depending on how dirty the surface is. 

Gas pressure washers are not suitable for cleaning painted surfaces or indoor areas such as a basement. They should also be used with a lower pressure on colored bricks and stones, as high pressure can tear away this color. 

Frequently Asked Questions

How much does a gas pressure washer cost? 

Gas pressure washers are generally more expensive than electric pressure washers. These units can cost anywhere between $250-$800 depending on the power and size. 

What is a good PSI for a gas pressure washer? 

It depends on the GPM (gallons per minute) as well, but the most common PSI (pounds per square inch) for gas pressure washers is 3200. This is suitable enough to clean a variety of tough stains and surfaces without causing damage. 

Obviously, the higher the PSI figure, the more powerful the pressure washer will be. Gas pressure washers can range from 2700 PSI – 4000 PSI. It’s important to understand your intentions for a pressure washer, as you probably won’t need a high PSI for lighter jobs such as cleaning lawn furniture. 

Is gas or electric pressure washer better? 

This all depends on your intentions! There are advantages and disadvantages to both, but generally speaking, electric pressure washers are the most popular. This is because they are cheaper, lighter, smaller, quieter, and best suited for smaller domestic jobs such as cleaning lawn furniture, decks, and patios. 

Gas pressure washers are more powerful than electric ones, which makes them best suited for professional and heavy-duty work such as cleaning driveways, roofs, cars, and garden equipment.

These tend to be larger and louder due to the more powerful motor, and they can produce a larger GPM rate. Gas pressure washers, due to their size, are less easy to store than electric ones. They are also usually more expensive. 

Can I use regular gas in my gas pressure washer? 

The gas these pressure washers require should be unleaded and clean gasoline. The minimum octane should be 87. Anything with up to 10% ethanol is suitable. 

However, do not use E85 gasoline or other unapproved types of gasoline. 

It mostly depends on the type of gas pressure washer you have, as each will have different requirements. Some require a mix, others require regular gas.

Due to the nature of gas pressure washers, using the wrong gas can, unfortunately, cause irreparable damage. It is therefore recommended to follow the instructions carefully or to consult with a professional or the manufacturer before using. 

Where can I store my gas pressure washer? 

Where electric pressure washers can usually be stored anywhere, gas pressure washers provide more of a threat as there is a combustible fuel included. They should not be kept in a home for this reason. The best place to store your pressure washer is in an outdoor shed or garage. 

However, it’s also important to consider the colder months where the unit is at risk of freezing. In the case of this, it might be worth considering a heating system in the shed or garage.