Best Gas Pressure Washer Reviews

Gas pressure washers are powerful, versatile and durable but they are also bulky, noisy and maintenance prone. The best thing about gas washers though is that the mechanism hasn’t changed much over the years. What has changed however is the technology, making it easier to start, operate and maintain.

With the pump generating pressure off the engine output, you never have to worry about the PSI and GPM output. As far as cleaning efficiency is concerned, gas washers are always better than any electric variant. However, remember never to use these power tools within a confined space as they produce dangerous carbon monoxide fumes, which is odorless and colorless.

The 5 best gas pressure washers of 2019

Here was have listed what we think to be the 5 best gas-powered pressure washers of 2017. When made our list we took into consideration size and weight, power, application, engine/engine type and overall performance.

Pressure WasherTypePower (PSI) (GPI)Unit WeightRatingPrice
Generac 7019Generac 7019
Gas3,100 PSI
2.4 GPM
(PSI x GPM) 7440
57 lbs.4.7 out of 5 stars (4.7 / 5)$$$
Generac 6923Generac 6923
Gas3,100 PSI
2.4 GPM
(PSI x GPM) 6000
57 lbs.4.6 out of 5 stars (4.6 / 5)$$$
SIMPSON MSH3125-SSIMPSON Cleaning MSH3125-S 3100
Gas3,100 PSI
2.5 GPM
(PSI x GPM) 7750
74 lbs.4.3 out of 5 stars (4.3 / 5)$$$
Gas3100 PSI
2.5 GPM
(PSI x GPM) 7750
67 lbs4.7 out of 5 stars (4.7 / 5)$$$
Powerstroke PS80519BPowerstroke PS80519B
Gas2,200 PSI
2.0 GPM
(PSI x GPM) 4,400
60 lbs.4.5 out of 5 stars (4.5 / 5)$$

Our in depth gas powered pressure washer reviews:

Top 5 electric pressure washers of 2017
A pressure washer is the best thing to bank on when you are dealing with stubborn dirt and stains. One of the best pressure washers available in the market today is the AR Blue Clean AR116 as it is sturdy, dependable and not very expensive too. This power driven washer packs 1450 psi pressure and blasts away grime, dirt and stain with consummate ease. What’s more, it is portable and can be lugged around the home very easily.

Pros: AR Blue Clean AR116 comes with a sleek ergonomic AR Blue Clean AR116 reviewhandle with trigger gun control to shut off power.
Cons: It lacks an additive tank to store special cleaning agents that can be power sprayed.

Generac 5991All anyone wants with a 3000 PSI pressure washer is dependability and good performance. This is what the Generac 5991 brings to the table at 3000 PSI and 2.7 GPM. In fact, it is well designed, packed with features and so easy to operate that you may just end up using it everywhere in your house. The upright portable design makes this pressure washer your standalone design. You will never again need a backup electric model.

Pros: Super easy to use, loads of power, long-lasting and portable.
Cons: Really noisy and not the best customer support.

See our Ultimate Guide to finding a Generac Pressure Washer here.

SIMPSON Cleaning MSH3125-S 3100 Effective and efficient probably best defines the Simpson PS3228 Powershot. While it operates a Honda Gx200 engine, the pump in use is of an inferior quality that will eventually wear out faster. Nevertheless, it produces 3200PSI and ample amount of GPM to clean driveways, patio, sidings, roof, walls and just about anything else. Weight is not a problem as it features pneumatic 10-inch tires and thanks to easy connect attachments such as the wand and hose, changing or extending the reach, using different nozzles is easy.

Pros: Well built and durable. Includes a long-lasting Honda engine.
Cons: Can be difficult to store the pump during the winter.

See our Ultimate Guide to finding a Simpson Pressure Washer here.

Generac 6024Catch a glimpse of the reliable and efficient pressure washer that can take care of all the sundry cleaning tasks in and around your home. The Generac 6024 is a power packed pressure washer equipped with a powerful induction motor that delivers an impressive 3,100 PSI (pounds per square inch) at a matching 2.7GPM. This 212cc OHV is gas powered and is the perfect solution for removing the most adamant stains like grease or oil stains left inadvertently on your driveway or backyard.

Pros: Easy to connect with, starts effortlessly and works for long.
Cons: Probably the fact that it is super noisy is the only issue.

SIMPSON Cleaning MSH3125-SSimpson is not my favorite manufacturer for power tools but it is always there in the back of my mind for making inexpensive dependable tools. The Simpson Megashot MSH3125-S is no different. It is a completely efficient and effective pressure washer that manages to outperform most other models and makes in the market. The only real problem though with this model is that Simpson tends to ship them without all the parts. So basically you end up waiting for two weeks or more. Otherwise, power to weight is great, so is the pressure and GPM ratings for any average household chore.

Pros: Long lasting, durable engine, good pump design, overall superb performance.
Cons: At times ships with missing parts and the pump breaks down faster than the engine.

Generac 6022The Generac 6022 has proven to be an ultra dependable semi-pro range pressure washer with a steady output of 2700 PSI and 2.3 GPM. The upright design makes it easy to store away and also move around while a stable base ensures it stays upright during use. All parts or components are highly quality and built to last. This Generac is an amalgamation of sound engineering principles with dependable design and construction.

Pros: Nice engine and pump, overall good design, easy start-up and plenty of power.
Cons: Stiff hose connection, muffler and wand outlet port are too close by.

SIMPSON Cleaning PS4240HThis Simpson PS4240-S PowerShot is the answer to all the cleaning woes faced by contractors who need a heavy duty machine to take care of the day-to-day cleaning activities that include clearing up grimy and oily decks, restoration of woodwork, preparing a surface before painting, removing stubborn graffiti and virtually any other heavy duty cleaning task.

Pros: Superior pressure and versatility, multiple nozzles.
Cons: Awfully noisy, the hose is a bit too stiff, and quite unwieldy when handling 4,500 psi.

Karcher G3050OHPositioned at the lower end of the professional gas pressure washer range, the Karcher G3050OH uses a semi-pro Honda GC190 engine with a proprietary Karcher pump to deliver 3000 PSI at 2.5 GPM. It weighs a lot at 75 pounds and is slightly difficult to transport but is an excellent machine pure performance wise. Those who have experience with gas pressure washers will actually love using this beast.

Pros: Excellent performance, enormous power output and dependable.
Cons: Pumps must be winterized, no oil indicator, difficult plumbing.

See our Ultimate Guide to buying a Karcher Pressure Washer here.

A few things to think about before buying and gas pressure washer

Engine Capacity

The ultimate power output is governed by the engine capacity and then by the pump type. More is the engine output, the higher pressure you can get with the ability to increase pressure even more.

Pump Type

Not all pumps deliver the same output. Moreover, brand and make of the pump matters a lot just as much as the design. Opt for pumps with a long running period and the ability to repair them.


Not all gas pressure washers are easy to move around. Although most come with wheels, opt for those with large pneumatic wheels and a sturdy base.

On-board Storage

The nozzles, attachments, wand and hose should all store easily on the pressure washer itself. Otherwise you may be left wondering where you stored the accessories after every winter.

Easy to Winterize

Gas pressure washers need a lot of care during the winters. Winterizing them requires removing all liquids and then filling in solutions to protect the engine and pump insides against frost.

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