Top 10 Best Gas Pressure Washers for Car Washing And Detailing

Some people feel pleasure in keeping their dream car perfectly washed and waxed all the time. It will take a lot of effort to wash it with a bucket of mild soapy water and soft washing mitts. It is also not possible to run it through a drive-thru wash every other day.

Washing and detailing a vehicle keeps it in a better condition. A pressure washer is a tool that assists you in quicker, easier, and most affordable washing. Once you start using pressure washers for the car, you will feel how much ease it has brought in your life. You would surely recommend it as a must-have tool for car owners.

Gas Pressure Washers Vs. Electric Pressure Washers

Although electric car washers are a new trend gas-powered car pressure washers are best when it comes to power, performance, efficiency, and longevity. Gas pressure washers for automobiles are economical both in terms of time and money. Gas is cheaper than electricity and pressure supported by a gas source is powerful enough to cope up with your all heavy-duty washing tasks.

Read more detailed Gas Vs Electric Pressure Washers Review

Gas pressure washers are more powerful, robust and offer higher pressure as compared to electric equivalents. Higher pressure leads to quick thorough cleaning in no time. Gas pressure washers are preferred for commercial grade cleaning.

Benefits of Gas Pressure Washers

A gas pressure washer can help you keep your car looking new all the time with little to no effort. You can use it for washing the exterior as well as the interior of the car. Following are the benefits associated with gas pressure washers.

Chemical-Free Cleaning

Gas pressure washers offer sparking cleaning results even without the use of detergents. You just have to select the hot water option, and the next job will be done by the pressure washers effortlessly.  It can clean mold, mildew, gum, tree sap, grime, and dust from the concrete driveways, flagstone patios sidings, or decks even without using any detergents

More Powerful

Gas-powered pressure washers are more powerful. They are not limited by the home electric current or outlet current and voltage. If you are intended to buy car pressure for your Car washing business then it is suggested to go for the gas-powered pressure washer.

Easy Maneuverability

Gas pressure washers are preferred for medium to heavy-duty outdoor cleaning tasks because they are not restricted by home electric outlet, voltage, and current.  Gas pressure washers use gasoline as their main fuel source, that’s why they are easily maneuverable. No need to worry about long electric cords, outlets, power supply, etc.

Sturdy Buildup

Gas pressure washers are more sturdy and strenuous in the buildup as compared to their electric counterparts. They are often bigger and heavier and provide high PSI and GPM. Manufacturers ensure the durability and longevity of the pressure washer with a sturdy aluminum frame, 4 strokes high power engine, OEM technology motor, pneumatic wheels, and onboard storage tanks. Gas pressure washers last longer than delicate electric pressure washers due to their strong build-up.

Rapid Cleaning Action

It is no doubt that gas pressure washers are more robust and powerful than electric or hydraulic pressure washers. On average, it will take only 10 minutes to clean your car. With its high speed, greater PSI, and powerful motor, gas-powered car pressure washers save your precious time and yeah money too.

Multiple Spray Nozzles

The gas-powered pressure washers have got multiple spray nozzles than electric ones to provide the required efficient streams of water. A soap nozzle is the one that helps in the car and other heavy-duty vehicle washing. The medium-range quick connect nozzles of 25 degrees provide optimum water flow rate for automobiles.

Below we have enlisted the 10 best Gas Pressure washers for cars with all the superb added features such as high pressure, long hose system, quality flow rate, and strenuous frame available on Amazon. Keep reading the whole article to get everything clear in your head.

1. WEN PW2800, PSI 2800, 3 GPMBest Gas-Powered Car Pressure Washer

WEN PW2800’s strong power and compact design make it a reliable pick for homeowners who are looking for a medium-duty gas pressure washer for the car. Along with car washing, its portability allows you to clean your driveway, back porch, garage, sidewalks, and vinyl sidings too.

WEN PW2800 2800 PSI


Model Number: Wen PW2800 | Power Source: Gasoline | Engine: 173cc-4 Stroke OHV
Maximum Pressure: 2800 PSI | Maximum Flow Rate: 2.3 GPM | Foldable Handle: No
Pump: Axial Cam Pump | Hose Length: 25 Feet| Wheels: 12″ No-Flat Wheels
Hose Connection: Threaded M2 | Nozzles: 0°, 25°, 40°, and soap
Product Weight: 73.7 lbs | Product Dimensions: 19.5 x 26 x 39.5 inches
Water Capability: Cold | Detergent Tank: 32oz.

Amazing Flow rate and Stream Pressure

This gas pressure washer features up to 2800 PSI of pressure with a flow rate of 2.3 gallons per minute. This flow rate is considered ideal for abrasion-free medium residential car cleaning activity.

Engine Specifications

This gas pressure washer is equipped with a powerful 173cc, 4 strokes OHV engine. Strong enough to pour the detergent up to 32-fluid ounces. The axial cam pump also assists the engine in casting a reliable spray to maximize the washer longevity.

Pretty Easy Assembly

Assembly is pretty easy, you don’t have to buy any tools to assemble it. Tools come with it in the shipping package ensuring the trouble-free assembly procedure. Follow the easy steps mentioned in the booklet provided by the manufacturers.

Pressure Modulation

There is no PSI adjustment, the pressure adjustment depends upon the 4 quick connect nozzle tips of varying degrees (0°, 25°, 40°, and soap). So to change the fan size or pressure flow, you have to change the nozzle tips. For car washing, it is advised to use a 25° nozzle tip.

Highlighted Features

The tools are adorned with superb added features that the customer would love to pick this item for his car. The units look magnificent with 12-inch wheels, portable design, easy mobility, 73.3 pounds weight with item dimensions (l× w× h) 19.5× 26× 39.5 inches.

2. Generac SpeedWash 7122, PSI 3200 – Most Powerful Gas Pressure Washer for Cars

The Generac SpeedWash 7122 is famous as a cleaning master because of its high-quality built-in features for residential use range. You would find it powerful enough to provide 3200 PSI of pressure.

Generac 7122 Speed Wash

Premium-Quality Engine & Motor

The efficiency of a car pressure washer depends upon the motor and engine power. Powered by a powerful, reliable high-quality OHV engine of 196cc with three years warranty coverage. The pressure washer will last 2x longer than normal aluminum pumps due to the axial cam pump with a brass head.

Distinctive 12-Inches Surface Coverage Brush

The pressure washer is furnished with a 12 inches surface coverage broom that leaves the car exterior sparkling clean. The combination of this broom and high-pressure quick-connect nozzles gives the output 4 times greater than the ordinary nozzles.

Smart Soap Blaster

There attaches a soap blaster that sprays soap 3x faster to completely remove stubborn dirt. A built-in wider detergent tank will make it a more convenient tool to work with. First, you’ll have to see the car set while using this spray gun for a car.

Turbo Nozzle

This Pressure washer comes with a turbo nozzle attachment. This attachment provides a very powerful blast of water that can cover a vast surface area. A turbo Nozzle is 30% more efficient than others.

Additional Features

This is surely a solidly build pressure washer with really innovative features. Another attractive feature that would surely compel you to buy this pressure washer is its effortless maneuverability due to the extra-long hose length of 30 feet.

3. Simpson Cleaning MSH3125, PSI 3200, 2.5 GPM– Top-Rated Gas Pressure Washer

Simpson Cleaning MSH3125


Model Number: Simpson MSH3125 | Power Source: Gasoline | Drive Type: Direct Engine: Honda CG190 | Pump Type: OEM Technologies Axial Cam pump
Maximum Pressure: 3200 PSI | Maximum Flow Rate: 2.5 GPM
Hose Length: MorFlex® 1/4 in. x 25 ft | Hose Thread: M22 | Quick Connect Tips: 5
Product Weight: 65 lbs | Gun: M22 connection | Wand: QC spray lance
Water Capability: Cold | Detergent Tank: No | Foldable Handle: No
Product Dimensions: 26 x 18 x 35 inches |

There are dozens of reasons that make Simpson MegaShot 3125 an industrial-grade residential unit. This unit is a blast to use with a honda_powered gasoline engine that provides 3200 PSI and a water flow rate of 2.4 GPM. The power can be manifested by the fact it can work straight for about 5 hours without facing any technical issues.

Easily Available Spare parts

The good thing is Simpson is compatible with several aftermarket accessories. You can buy original body parts from amazon or at your local big-box hardware. Don’t hesitate to buy this unit, if you are looking for a sturdy, reliable, and powerful tool to deal with your car.

Powerful Air-Cooled, 4 Stroke Honda Engine

MSH3125 has got an air-cooled, 4 stroke engine of GC 190 cc that features unblock construction and overhead cam configuration. This premium high-quality unit is specialized to reduce oil and fuel consumption.

Color-Coded Stainless Steel Nozzles

Besides car washing, this unit facilitates you to cover a wide variety of applications with five color-coded stainless steel nozzles. To change out the nozzle is a quick thing now due to the presence of a pro-style steel spray wand.

Affordable Mid-Level Washer

Price is the number 1 upside to this unit. Because in a market it is very rare to find such a powerful, tool with a sturdy frame and body parts, 3200 PSI and gas-powered Honda engine at such an affordable price.

A little Clunky with background Vibrations

Apart from its outstanding performance, the unit is a bit clunky, vibrates and dances to the floor it is sitting on. As a result, it leaves cranky tire marks across the surfaces it is carried along.

4. Westinghouse WPX2700, PSI 2700, 2.3 GPM -Leading Auto Pressure Washer

Westinghouse WPX2700 is a very durable, heavy-duty pressure washer backed by thousands of happy customers. It supports 2700 PSI with a water flow rate of 2.3 GPM.

Westinghouse WPX2700 Gas Powered Pressure Washer

Engine & Motor Details

It is equipped with a genuine OHV Westinghouse engine that offers vigorous high-pressure water flow. The engine is supported by a long-lasting maintenance-free axial pump. Westinghouse is for what you’ll pay, you get your money’s worth.

Onboard Soap Tank

You will feel this feature beneficial of all, onboard soap tank will make car cleaning activity like a walk in park. The soap tank with the capacity of 1/2 gallons takes car detailing to a whole new level. The detergent will not allow any dust, dirt, and grime to remain stick to the exterior of the car.

Intense Blast

When using the zero-degree nozzle, it casts an intense blast to help cut through grease, grime, and other stains. Using this nozzle for the inner corners of your car will leave no stones unturned to a sparklingly clean vehicle.

Overheats Easily

The engine and motor can overheat. This is mostly caused when you wash your car on a hot day leaving the pressure washer in sun without giving it a break. Quite a few customers complain that their pressure washer leaked oil. So check the warranty and tried to get it fixed under the warranty.

Additional Specs

The company covers between 1-3 years of warranty on this unit depending upon the cover you need.  The unit is not so heavier as compared to other heavy-duty commercial-grade units and weighs only 63 pounds.

5. SIMPSON MS60763-S, PSI 3100, 2.4 GPM – Best Gas Powered Pressure Washer for Car Washing

Simpson is a well-reputed and unbeatable manufacturer when it comes to Pressure washers. Their products are considered superior either consumer-grade to commercial-grade. You would not regret investing in it.

SIMPSON MS60763-S MegaShot Gas Pressure Washer

Powered by Kohler Engine & axial cam Pump

This motor unit is easily operatable with the Kohler RH256 engine. Like other Simpson pressure washer units, it also contains OEM Technology axial cam pump built by heavy-duty steel. With this power, the pressure washer can easily rinse away caked-on mud from your car.

Easily Changeable Nozzles for Pressure Regulation

Although the combination of 3100 PSI with 2.4 GPM is perfect for standard cleaning activity. But it also offers easily Changeable and adjustable nozzles (9, 15, 25, 40 degrees, soap). These nozzles will allow you to keep the speed of water according to your desired Pressure level.

Safety Lockage System

To avoid any unpleasant accident, the Pressure washers have come up with a great spray gun with a safety Lockage system.


The engine comes up with 2 years of warranty coverage. A sturdy body frame ensures its longevity with 5 years of coverage. The remaining unit parts have 90 days of coverage.

Flaw; absence of Detergent tank

The one thing you will not find satisfying is the absence of a detergent tank. There present a soap applier nozzle where you have to fill the soap and set the nozzle to proceed with the car washing process.

6. Simpson Cleaning CM61083, PSI 3400, 2.5 GPM – Best Gas Powered Pressure Washer for Auto Detailing

The unit is a well-known heavy-duty Pressure washer for residential use for under 350$. Let’s explore more of its features below

Simpson Cleaning CM61083 3400 PSI

Breezy Assembly

Setting up is as easy as a low-grade residential power washer. No complex sockets to join. No need to buy specific tools for assembly. You can do it your own by just reading easy steps written in the manual book.

Supported by Simpson’s OHV Engine

The Pressure washer comes with a Simpson’s OHV engine that provides power to maintain the continuous flow of water at 3400 PSI. Maintenance-free OEM technology-based axial cam pump ensures water flow at 2.5 GPM. No need to get confused by looking at the difficult terminology, the pressure washer is safe in all aspects despite its high-powered motor and engine because of its trigger lock mechanism.

Highlighted Features

The entire package includes a wand, spray gun, and pressure hose, adjustable nozzle (0°, 15°, 40°, and soap insertion features. The onboard storage facility keeps you all set every time.You just have to manage your timetable. There will be no restrictions at the pressure washer end.

Roars like a Bear

Although we are satisfied with the performance end and recommended it for professional-grade car detailing at home it roars like a bear. So consider this model a bit noisy, other features are good to go with.

7. TEANDE PSI 4200, 2.8 GPM – Best Automotive Gas Pressure washer

If you’re in search of the best Commercial grade Pressure washer for your new setup of the automobile detailing and pressure washing business. This is one of the top-rated Pressure washers for car

TEANDE 4200PSI Gas Pressure Washer

Highly Efficient with 90% Output

Power is the big thing to note about this pressure washer, with 4200 PSI and a flow rate of 2.8 GPM. You would get 90% output with complete burning of fuel, this is the efficiency far more than electric pressure washers.

Big Foam Spray Can

The pressure washer is equipped with an extra-large foam spray can. It would also prove beneficial because the detergent wouldn’t run out for a long time. You can easily use it to do multiple jobs without interruption.

5 connect Nozzle tips for Pressure Control

The versatility of an automotive pressure washer is definitely reviewed by the number of nozzle tips. This unit comes with five connect nozzles of varying degrees of about 0°, 15°, 25°, 40°, and a soap nozzle.

Maneuverable on Tricky Terrain

The mobility is super easy due to its sturdy frame and large wheels. Even you can effortlessly move this unit on tricky terrain. Also, the 10-inch pneumatic wheels assist you with easy maneuverability. No matter how far your client is parking, you can move this gas pressure washer to that.

 PSI Exaggeration

Some customers are unsatisfied with the PSI Claim. According to reviews, it doesn’t feel like 4200 PSI, maybe the manufacturers are exaggerating about PSI.

8. STANLEY FATMAX SXPW2823K, PSI 2800, GPM 2.3 – Best Gas Pressure Washer For Auto Detailing

This unit is an entry-level gas cold water style pressure washer for auto detailing with 2800 PSI and 2.3 GPM. It washes your vehicle faster and more effectively than a garden hose.


Kohler XT675 149cc Engine

The first thing to look upon is the engine specification. This pressure washer is powered by a robust gasoline engine of 149cc to provide dependable power. It offers an easy to start, time after time due to its easy-pull start-up technology.

Maintenance-Free OEM Technology Vertical Axial Pump

Powerful maintenance-free OEM technology vertical axial pump produces water flow of 2.3 GPM for efficient cleaning of car and other heavy vehicles. It allows you to free yourself from the tiresome tool maintenance duties.

Welded, Power-Coated Body

12 inches never-flat wheels allowed easy transportation of Pressure washers on varied terrains. The feature that makes this model the hot pick is its onboard storage facility. This assists you to keep the spray gun, hose and nozzles organized. Moreover, it also offers on board 1-gallon detergent tank that eliminates the messy buckets and soap bottles tip over and spill.

Other Consideration

Apart from above mentioned attractive features,  the unit is worth buying for car detailing with 4 connect nozzles to assist in pressure regulation, and M22 spray gun for water stream cast, 35 feet extra-long hose length for accessibility, and the unit is durable with1 year consumer warranty.

9. Ryobi B07DL9VXRD, 3000 PSI, 2.3 GPM – Best Gas Pressure Washer For Driveways

Ryobi is a powerful and surprisingly convenient Pressure washer with 3000 PSI and 2.3 GPM.

Ryobi 3000-PSI Gas Pressure Washer

Electric Start Honda Engine

Electric start is the standout feature of this pressure washer. It makes the tough car washing a cakewalk. It combines a powerful Honda 4 cycle vertical engine with electric start gas powered to create a top-notch power washer for homeowners. You don’t have to put extra force to start the engine because an electric start feature offers an easy start.

12-volt lead-acid battery

Also features a 12-volt lead-acid battery for tool maintenance for prolonged life. The engine is protected by a sturdy durable frame. The battery is only to start the power washer, not to operate it.

Easy Setup: Ready to go

It comes partially assembled as wheels are already attached. You just need to attach the handle which can be attached in the snaps with a pushpin type locking mechanism.  All the setup process just takes 15 minutes, then add oil, gas and you are ready to go.


It has got almost every necessary accessory to assist you in the external as well internal car detailing. The shipping unit contains four color-coded, quick connect Nozzles. 0° is the most powerful one, 25° midrange, 40° gentle option, and a soap nozzle. For damage-free car washing and waxing, you should go with a 25° nozzle.

Expensive but worth it

When it comes to performance, it is on the higher end of the spectrum.  Expensive unit, you’ll have to pay more for the performance and reliability.

Read more about Best Ryobi Pressure Washers

10. BLUBERY GSW02A, PSI 3200, 2.4 GPM – Best Gas Pressure Washer for Cars and Home

You can rely on this Gas-powered BLUBERY power washer to wash your car without thinking twice. The pressure is in the medium range with a PSI of 3200 and 2.4 GPM that will not damage your car paint or delicate interior accessories.

BLUBERY 3500PSI Washer


High-Efficiency Engine

It is adorned with a powerful and efficient 4 stroke 209cc OHV engine provided by domestic first-class suppliers. With this high-efficiency engine, it can work with continuity without any risks or shortcomings.

Unproblematic Maneuverability

The power and performance presented by the engine take this gas-powered pressure washer beyond the reach of an electric pressure washer. Apart from the performance end, it is also physically accessible to far places with its large wheels and casters that provide effortless maneuverability.

Moderate Vibrations

With this higher PSI and powerful engine, you can’t ignore the background vibrations. The manufacturers have somehow resolved this by placing two rubber support points at the front of the machine to absorb the force of vibration.

Multi-Serving with 5 Quick Connect Nozzle Tips

It requires a variable pressure rate to wash various parts of the vehicle especially when it comes to the interior of the car. The 5 quick connect nozzle tips of variable degree of about 0°, 15°, 25°, 40°, and soap provides you with desired water flow.

Other Considerable Features

The other highlighted features are the M22 Pressure hose, SAE 10W-30 oil, fuel less than 10% ethanol. The company claims 100 percent tested the functionality of this unit. It may emit minimum residual fuel/oil odor.

Final Verdict

It is not very smart to spend hours and hours washing your car with bare hands. You can spend this precious time on other fruitful activities. Let the pressure washers help you. Apart from car washing, a gas pressure washer can also help you to cope up with the laborious outdoor cleaning tasks. We tested these 10 Gas Pressure washers for cars so our readers might not be distracted by the false reviews. TEANDE PSI 4200, 2.8 GPM is our favorite pick from this list. We hope it will help you in selecting the most durable, user-friendly, and versatile Gas Pressure Washer for your car.

Flinn Milan

Flinn Milan is the content director at Washwith. He is responsible for developing helpful content in collaboration with other hard-working team members. Over several years, his content strategy is mainly focused on describing and highlighting every product with its positive and negative points

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