Short answer first: for concrete you want 3,000 PSI and 2.5 GPM or more, and gas earns its keep once you are cleaning more than about 1,200 square feet of slab. Below that, a small electric unit does the same work slowly.
Concrete is porous. It drinks in oil, holds algae in its pores, and traps grime where a garden hose and a stiff broom cannot reach. That is why the best gas pressure washers for concrete come down to two numbers — pressure and flow — and why shoppers who fixate on PSI alone end up owning a machine that takes an entire Saturday to cover a two-car driveway.
I compared ten gas units across engine type, pump architecture, hose length, and real feedback. All ten carry a four-stroke or OHV gasoline engine, so fuel handling and off-season storage come with the territory. If that sounds like a hassle, read our electric pressure washer guide first, or browse our full best pressure washers shortlist.
Table of Contents
Top 3 Best Gas Pressure Washers for Concrete in 2026
Quick Spec Comparison of All 10 Machines (October 2026)
1. Simpson Clean Machine 3400 PSI – Best Overall for Driveways
Simpson Clean Machine 3400 PSI Gas Pressure Washer, 2.5 GPM, CRX engine
3400 PSI, 2.5 GPM
208cc CRX engine with low-oil shutdown
Axial cam pump
25 ft non-marring hose
Pros
- Easy-starting 208cc CRX engine with low-oil shutdown
- Maintenance-free axial cam pump with thermal relief
- 25 ft non-marring hose resists kinks
- 10 inch pneumatic tires roll over gravel and curbs
- Four quick-connect tips for windows through cars
Cons
- Budget CRX engine is not a Honda GX long-term buy
- Not available in California
- Some frame bolts need tightening after assembly
Simpson built the Clean Machine around a 208cc CRX engine, an OEM Technologies axial cam pump rated at 3400 PSI and 2.5 GPM, and a 25-foot MorFlex hose that will not mark up a finished driveway edge. The frame is welded steel with a powder coat, and the 10-inch pneumatic tires handle gravel approaches without dragging.
At 61 pounds it is one of the lighter machines here, which matters when you are dragging it around the side of a house alone. Four quick-connect nozzles cover the range from glass down to cars, and the M22 spray gun with a 16 inch wand is the size most people expect.
Cleaning performance on concrete is the reason this lands first for most homeowners. Reviewers describe driveways coming back to near-original grey after a single pass with a 25-degree tip, and siding that is prep-ready for paint in an afternoon.
The 2.5 GPM flow is the limiting spec. On a long driveway the job is measured in hours rather than minutes, and the 25-foot hose means you are frequently moving the machine rather than working from one spot.
What you get on a two-car driveway
Expect a full morning of work on roughly 400 square feet, plus moving the unit twice. Owners consistently report easy assembly and starting on the first or second pull, which matters more than raw numbers once the machine is fueled and connected.
Where owners report problems
The recurring theme in critical feedback is engine longevity relative to Honda-equipped models, plus the fact that this model is not sold in California. Loose frame bolts after assembly are a common first-project complaint.
2. DeWalt 3300 PSI 2.4 GPM – Best for Paint Prep
DeWalt 3300 PSI Gas Pressure Washer, 2.4 GPM, Residential Model DXPW3300-S
3300 PSI, 2.4 GPM
208cc DeWalt engine
OEM axial cam pump
5 quick-connect nozzles
Pros
- Compact and easy to transport
- Easy-starting 208cc engine
- Five quick-connect nozzles
- 10 inch pneumatic tires handle uneven ground
- 3 yr frame
- 3 yr pump
- 2 yr engine warranty
Cons
- 2.4 GPM is the lowest flow in this group
- Some units arrive with residual fuel odor
- Not available in California
This is the machine to buy if the slab is going to be painted afterward. Five quick-connect nozzles including a 25-degree tip give you the spread you need to take a chalky, oxidized surface back to a uniform profile before primer goes down.
The welded steel frame carries the best warranty coverage in the lineup at three years on the frame, three on the pump, and two on the engine. At 64 pounds it sits mid-pack for weight, and the 16 inch steel wand is a solid, serviceable length.
Thermal relief valves are the under-rated spec here. Both this DeWalt and the Simpson above run one, which lets the pump shed pressure and cool rather than cooking seals when you park the wand on a hot driveway in July.
Owners also point out the compact footprint at 41 by 21 inches, which makes it the easiest of the mid-size machines to fit in a vehicle bed or against a garage wall.
What you get preparing siding and concrete for paint
This is a prep machine first and a blast machine second. The 25-degree nozzle does the lifting, the soap nozzle handles detergent, and the axial cam pump holds pressure steadily through a long afternoon of section-by-section work.
Where owners report problems
Two themes dominate: the modest 2.4 GPM flow makes big slabs slow, and a small number of units carry a fuel odor from factory testing that takes a few runs to clear. Like most 49-state units here, it cannot be sold in California.
3. Simpson Aluminum Series 3600 PSI Honda GX200 – Best Triplex Pump Buy
Simpson Aluminum Series 3600 PSI Gas Pressure Washer, 2.5 GPM, Honda GX200
3600 PSI, 2.5 GPM
Honda GX200 with low-oil shutdown
AAA triplex plunger pump
35 ft hose
Pros
- Honda GX200 engine is easy to start and reliable
- AAA triplex pump with integrated unloader
- 35 foot hose gives excellent reach
- Aircraft-grade aluminum frame resists corrosion
- 3 yr engine
- 5 yr pump
- 10 yr frame warranty
Cons
- Some owners report hard cold starts or backfiring on shutdown
- Light frame can walk on sloped driveways
- Stiff hose is hard to coil
The jump from an axial cam pump to a triplex plunger pump is the single biggest durability upgrade you can make in this category. Plunger pumps run cooler and handle sustained high-pressure work far better than a cam pump, and the integrated unloader plus thermal relief protect the seals on long jobs.
Honda GX200 is the other half of the argument. It is a commercial engine that starts readily and keeps running, and the 10-year frame warranty is the longest in this roundup by a wide margin.
The 35-foot MorFlex hose is what owners notice most. On a two-car driveway and the walkway around a house, you can set the machine once at the curb and cover most of the work without dragging 78 pounds around a yard.
PowerBoost Technology is Simpson’s name for pressure at the nozzle, which is where it matters since hose and wand length eat some of the pump rating before water ever reaches your driveway.
What you get when the pump is the deciding factor
Anyone cleaning concrete weekly, or running a machine on a rental property or small job list, gets more usable life from triplex architecture. This is the machine contractors tend to buy for themselves rather than rent.
Where owners report problems
Hard cold starts and occasional backfiring when shut down at full throttle come up repeatedly. The aluminum frame is light enough that the machine can walk on a sloped driveway while running, and the stiff hose resists coiling.
4. PowerSmart 3800 PSI 2.5 GPM – Best for Second-Story Reach
PowerSmart Gas Pressure Washer, 3800 PSI and 2.5 GPM for House Cleaning
3800 PSI, 2.5 GPM
212cc 4-stroke OHV engine
PWMA certified
35 ft super-flex hose
Pros
- 212cc 4-stroke reaches second-story surfaces at 3800 PSI
- PWMA performance and EPA engine certified
- 35 ft super-flex abrasion-resistant hose
- 10 inch pneumatic tires move over any terrain
- Onboard soap tank and five nozzles
Cons
- 0.79 gallon fuel tank limits runtime between refills
- Published hose length conflicts with the 35 ft description
- Entry-level brand with a shorter track record
3800 PSI at the nozzle is what makes this one interesting for mixed-use cleaning. Concrete is the target, but the same head of pressure reaches second-story siding on a two-story house, which is exactly the wide-surface combination that drives most purchases.
The 35-foot super-flex hose is unusually long for this class and it stays workable where stiff hoses fight you. Onboard soap tank with a hook and sling means detergent is not a separate bucket.
Buyers like the certifications. PWMA performance certification and EPA engine certification mean the pressure and engine claims have been independently checked, which is not true of every budget listing in this category.
The 212cc four-stroke also removes the old oil-and-gas mixing routine entirely, so there is no premixing step and no two-cycle oil to keep separate.
What you get for mixed-surface work
If your list reads concrete, siding, fence, and patio furniture, this is a one-machine answer. The 40-degree and 25-degree nozzles handle broad surfaces, the 15-degree handles edges, and the soap nozzle handles pre-treatment.
Where owners report problems
That 0.79 gallon tank is the practical limit. On a long job you will stop for fuel more often than the specification sheet suggests, and the listing itself is inconsistent about whether the hose is 35 feet or shorter.
5. VEVOR 3400 PSI 2.6 GPM – Strong Flow in the Entry Class
VEVOR Gas Powered Pressure Washer 3400 PSI 2.6 GPM, with Spray Gun and Extension Wand, 5 Quick Connect Nozzles, Copper Pump
3400 PSI, 2.6 GPM
210 ml four-spoke engine
Aluminum and copper pump
26 ft hose
Pros
- Delivers noticeably more power than typical electric washers
- Copper pump runs well under load
- Five quick-connect metal nozzles
- Easy assembly of handle and wheels
- Best flow rating among the lowest-cost units
Cons
- Engine on/off switch can vibrate to the off position
- Front-mounted recoil cord is awkward to pull
- Instructions omit oil quantity and idle adjustment
2.6 GPM is a real advantage here, and flow is what determines how long a driveway takes. The 3400 PSI rating pairs with a flow number that sits at the top of this price band, which is unusual.
The aluminum and copper pump is the other draw. Metal nozzle tips rather than plastic, five angles including 0 and 15 degrees, and a 26-foot abrasion-resistant hose that stores on the machine with the gun.
At 57 pounds this is one of the lighter units and it moves easily across a driveway apron. The tradeoff is honest: component quality is where the money was saved.
Owners frequently describe it as the strongest washer they have personally owned while it has been running, which is a real statement about output rather than longevity.
What you get on flow per dollar
If your driveway is large and you are patient about maintenance, higher GPM shortens the job. This machine pairs the best flow in its bracket with a pump that reportedly holds up under load.
Where owners report problems
The engine switch vibrating to the off position is the most common complaint, followed by a front-mounted recoil cord that makes starting awkward. Some owners replace lock nuts and bolts with stainless hardware, and the instructions skip oil quantity and idle adjustment.
6. Westinghouse WPX3000 3000 PSI – Most Compact Concrete Washer
Westinghouse WPX3000 Gas Pressure Washer, 3000 PSI and 2.3 GPM, Spray Gun and Wand, 4 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture
3000 PSI, 2.3 GPM
212cc OHV horizontal shaft engine
Never-flat wheels
50.7 lb frame
Pros
- Strong 3000 PSI output restores concrete and siding
- Easy to start on the first or second pull
- Never-flat wheels need no maintenance
- Light enough to move alone and fit in a car
- 3 year limited warranty with a nationwide service network
Cons
- No throttle control so the engine runs at full speed
- Restarts after a warm shutdown can take 30 minutes or more
- Side-mounted water inlet can chafe a garden hose
3000 PSI is exactly the concrete threshold, and Westinghouse hits it while staying inside the practical gas range rather than chasing headline numbers. The 2.3 GPM flow is the lowest here, so plan the job around it.
At 50.7 pounds with never-flat wheels, this is one of the easiest machines in the roundup to reposition. Owners moving it solo and even loading it into a car for a rental property is a repeated theme in the reviews.
Restoring concrete and siding to a near-new appearance is what reviewers praise most often. The 25-degree nozzle and a 3,000 PSI pump are a good pairing for set-in algae and ground-in dirt.
Westinghouse support is described as responsive and helpful, and the warranty runs three years on service, labor, and parts.
What you get on restoration work
This is the machine to buy for a one-time deep clean of a heavily stained slab where the job is measured in a weekend, not a career. The output clears mold, algae, and embedded dirt in a way lower-pressure consumer units simply push around.
Where owners report problems
Two practical issues stand out. There is no throttle control, so the engine runs at full speed, and a warm engine can refuse to restart for 30 minutes or more until it cools. The side-mounted water inlet also wears through garden hoses from vibration.
7. VEVOR 3600 PSI 2.6 GPM – Best Copper Pump Upgrade
VEVOR Gas Pressure Washer, 3600 PSI 2.6 GPM, Gas Powered Pressure Washer with Copper Pump, Spray Gun and Extension Wand, 5 Quick Connect Nozzles, for Cleaning Cars, Homes, Driveways, Patios
3600 PSI, 2.6 GPM
Full copper pump
26 ft hose
2 never-flat wheels
Pros
- Plenty of flow and pressure for driveways and patios
- Copper pump holds up under frequent high-pressure use
- Good build quality for the money
- Well-sized wheels for maneuvering
- Strong value against 3400 PSI name-brand models
Cons
- Does not typically start on the first or second pull
- Some units develop pinholes in the hose near the wand
- Published hose length does not match the 26 ft description
This is the step up from the other VEVOR in this roundup: 3600 PSI instead of 3400, same 2.6 GPM flow, and a full copper pump instead of an aluminum and copper hybrid. The pump is the part that has to survive years of concrete work, so it is where the extra material matters.
Two 10-inch never-flat wheels, an onboard accessory rack, and a 26-foot hose round out a package owners describe as well built for the money. Owners also note the pump holds pressure well under sustained use on a hot afternoon.
Flow and pressure together are what make this quick on a whole-home job. Driveways, patios, and vehicles fall under the same 2.6 GPM stream, so you are not constantly stopping to refill the pump.
What you get on a whole-home clean
For someone washing siding, a driveway, and vehicles in one weekend, the combination of 2.6 GPM and a pump that tolerates frequent use is the right pairing. Plan for the recoil start, which is the main friction point.
Where owners report problems
Starting is cranky and rarely happens on the first or second pull. A small number of owners report hose pinholes forming near the wand after short use, and the listed hose length in the specifications conflicts with the 26 feet described in the features.
8. PowerSmart 3400 PSI Foldable 31-Pound Frame – Best for Tight Storage
PowerSmart Gas Pressure Washer 3400 PSI, 2.5 GPM Gas Powered Pressure Washer, 212CC Engine, 10″ Wheels, 5 Nozzles for Patio, Car, Driveway, Fence & Home Cleaning
3400 PSI, 2.5 GPM
212cc 4-stroke OHV engine
31 lb folding frame
27 inch wand
Pros
- Full-size gas pressure in a 31 pound frame
- Starts on the first pull for most owners
- Foldable handle saves garage and shed space
- No cord to drag
- Completes whole-home prep before painting
Cons
- Some units arrive with broken parts or oil leaks
- Noisier than electric washers
- Oil fill and hose hookup sit in hard-to-reach spots
At 31 pounds this is by far the most portable gas machine here, and the foldable handle is the reason. It fits in a closet or behind a mower where a 78-pound aluminum-frame machine does not.
Underneath, it is a 212cc four-stroke OHV engine driving 3400 PSI and 2.5 GPM through five quick-connect nozzles, with a 27-inch wand. That is real gas pressure output in a small package.
Owners like that it starts on the first pull, which is the single most repeated piece of praise across gas washer reviews. The four-stroke design also eliminates oil mixing, so there is no separate premix container.
Buyers report finishing whole-home exterior prep before painting, including stripping old paint for repainting on siding and decks.
What you get in a small footprint
This suits a renter, a condo, or anyone whose garage space is the binding constraint. The tradeoff is noise, which is meaningfully higher than an electric unit and higher than the larger premium machines.
Where owners report problems
Some units arrive with missing parts or oil leaks, and the oil fill point and hose hookup are tucked beside the wheels where they are awkward to reach. The listing also mixes up hose length and wand length.
9. Steupoek 4200 PSI 4.0 GPM – Best High-Flow Compact
4200PSI Gas Pressure Washer 4.0GPM Gas Power Washer 212CC Gas Powered Washing Machine Commercial Pressure Washer with 32ft Hose Reel&5 Nozzles for Patio Garden Yard Vehicle,EPA/CARB/ETL (Dark Black)
4200 PSI, 4.0 GPM
212cc 4-stroke OHV engine
32 ft hose reel
3.6L fuel tank
Pros
- 4.0 GPM flow shortens cleaning time on large slabs
- 4200 PSI clears concrete
- brick and driveways thoroughly
- Compact and light for its output
- Five nozzles plus a 3L dual soap tank
- Three hour continuous run reported by owners
Cons
- No power to strip paint from decking
- Large areas still need slow deliberate passes
- Short brand history so long-term durability is unproven
4.0 GPM is the number that makes this machine interesting, and it is the same flow class as the professional Simpson at the end of this list. Flow is what determines how fast you cover a slab, not just how hard you hit it.
At 77 pounds with a built-in hose reel and 32 feet of hose, it is unusual to find this much flow in something you can still walk across a yard alone. The 3.6 liter fuel tank is more than double what most machines in this roundup carry.
Owners report running it continuously for about three hours without overheating, and the 1/4-inch quick-connect wand end accepts surface cleaners, extension wands, and foam cannons, which is the part that matters if you own a surface cleaner.
EPA, CARB, and ETL certification round out the spec sheet, and five nozzles including a 60-degree cover both very narrow and very broad work.
What you get when flow is the deciding factor
For long driveways, RV pads, and multi-property work, 4.0 GPM is the difference between an afternoon and an evening. The high flow also means less dwell time on stubborn algae patches.
Where owners report problems
It is a cleaning machine, not a stripping machine, so do not expect it to lift heavy paint from decking. The brand has a short review history, which means long-term durability is genuinely unknown rather than proven.
10. Simpson Aluminum Series 4200 PSI Honda GX390 – Best for Long Driveways
Simpson Aluminum Series 4200 PSI Gas Pressure Washer, 4.0 GPM, Honda GX390
4200 PSI, 4.0 GPM
Honda GX390 with low-oil shutdown
CAT triplex pump
50 ft hose
Pros
- Honda GX390 and CAT triplex is the professional standard combination
- 4.0 GPM roughly halves job time versus 2.5 GPM machines
- Easy to start on the second pull
- Aluminum frame is lighter than a steel equivalent
- 50 ft dual-braided hose
Cons
- Heavy at roughly 124 pounds and awkward to move alone
- Some units arrive with a bent aluminum mounting plate
- 50 ft hose is stiff to handle
- Frame warranty is only 1 year
This is the machine experienced operators keep coming back to. Honda GX390 plus a CAT triplex plunger pump is the combination most professionals run, and the 4200 PSI at 4.0 GPM rating cuts job times roughly in half against a 2.5 GPM machine.
The 50-foot dual-braided Monster series hose means a 200-foot driveway is a hose-reel problem rather than a machine-moving problem. Owners who own two properties stop dragging the washer between them.
Retailer and reviewer consensus across the industry treats this as the reference professional machine, largely because of the engine and pump pairing rather than the sticker pressure number. Ceramic-coated pistons and advanced oil seals are specified to extend seal life.
It starts on the second pull for most owners, and the aluminum frame is easier to maneuver than a steel equivalent at the same class of output.
What you get on a long driveway
At 4.0 GPM this is the fastest machine here on large slabs, and the 50-foot hose keeps you in one spot. For a 200-foot driveway, that combination is the whole argument.
Where owners report problems
It weighs roughly 124 pounds, which is genuinely awkward to move without help, and the 50-foot hose is stiff. Inadequate packaging has also bent the aluminum mounting plate on some arriving units, and the frame warranty is only one year against three on the engine and five on the pump.
How Much PSI Do You Actually Need for Concrete?
For concrete, 3,000 PSI is the practical minimum and 2.5 GPM is the flow number that keeps the job from dragging. A 2,000 PSI unit will clean a patio; it will not strip set-in algae or oil out of a driveway slab, and it tends to push staining around instead of lifting it.
The most upvoted technical answer in r/pressurewashing recommends a Honda GX390 with roughly 3,000 to 3,500 PSI at 4 GPM, which lines up with what owners report in practice. That is the specification to aim for if your concrete is large or the staining is old.
Flow matters as much as pressure
Here is the arithmetic people skip. A 2,000 square foot driveway is a long afternoon at 2.3 to 2.5 GPM and a substantially shorter session at 3.0 to 4.0 GPM. Pressure breaks the bond between grime and concrete; flow determines how fast you cover the area while it is broken.
Compare the 2.3 GPM Westinghouse in this roundup against the 4.0 GPM Simpson Aluminum Series and the flow gap is the single largest difference in time you will notice on a big slab.
When electric is the honest answer
One r/homeowners user running an electric unit on concrete describes it as working fine, just slower than a gas model, and that is an accurate summary for a small patio or walkway. Electric wins on noise, storage, and maintenance. If your concrete is under roughly 1,200 square feet and you already have an electric machine, gas may be solving a problem you do not have.
Gas or electric for a mixed-use household
For anyone also washing siding and vehicles, the calculus changes. A gas unit gives you one machine for three jobs with no cord to drag. Our car washing picks cover the low-pressure end, where these machines are overkill for a paint job.
Pump Type and Engine Brand: What Actually Matters
Two architectural choices separate these machines. A triplex plunger pump uses three pistons driven by a crankshaft and runs cooler under sustained pressure; an axial cam pump is simpler, cheaper, and adequate for occasional residential use. Our broader gas washer comparison covers more brands.
On the engine side, Honda GX-series engines are the reference point that the rest of the market is measured against, which is why they appear on the most expensive machines in this roundup. Briggs and Stratton and the generic OHV engines used by Westinghouse, VEVOR, PowerSmart, and Steupoek are all fine for residential duty with regular oil changes.
Reading the pump spec on a listing
Look for a thermal relief valve, which protects seals on hot days, and an integrated unloader on triplex pumps, which relieves pressure when you release the trigger. A total stop system shuts the pump down completely at trigger release and saves fuel on long jobs; none of the ten machines here advertise one.
Six Mistakes That Etch and Gouge Concrete
Etching is permanent surface damage, and it comes from pressure plus proximity plus spray angle, not from pressure alone. A 3,000 PSI machine will not etch a driveway held at 18 inches with a 25-degree nozzle. The same machine will etch badly at 4 inches with a 0-degree tip.
Mistake one is getting the nozzle too close. Keep a consistent 12 to 18 inches and let the fan do the work. Mistake two is using a red 0-degree tip on flat concrete at all, which concentrates the entire flow into a pencil-thin line designed for cutting rust out of steel.
Mistake three is skipping pre-treatment. Apply an appropriate cleaner, let it dwell, then rinse. Mistake four is cleaning a sealed surface at full pressure, which strips the sealer. Mistake five is working without a surface cleaner on a large slab, which leaves swirl marks from an inconsistent fan pattern. Mistake six is leaving the machine running unattended near an open window, which is a carbon monoxide risk with any gasoline engine.
Nozzle and pressure pairings that work on concrete
Use the 40-degree white tip for broad gentle washing, 25-degree green as your default working pressure, 15-degree yellow for edges and stubborn lines, and save the red 0-degree for spot work at a distance. Soap nozzles apply detergent first and clean the surface chemically rather than mechanically.
Winterizing a gas unit for the off season
Run the engine until the fuel tank is empty, change the oil, and store the machine somewhere it will not freeze. If you leave fuel in it, add a stabilizer and expect the engine to be harder to start in spring. Pump oil changes on triplex pumps are the other item people defer indefinitely and should not.
If the slab is the only reason you are shopping, our walk-behind concrete saw guide covers the cutting side of the job.
Frequently Asked Questions
What PSI pressure washer is best for concrete?
At least 3,000 PSI combined with 2.5 GPM or more. Below 2,000 PSI a washer tends to push algae and oil staining around rather than lift it out of the slab, and lower flow means a long job on anything larger than a patio.
Is 3000 PSI enough to clean concrete?
Yes. 3,000 PSI is the practical minimum for driveways, patios, and walkways, especially where mold, algae, or set-in stains are involved. Pair it with 2.5 GPM or higher and hold the nozzle 12 to 18 inches from the surface to avoid etching.
Who makes the best gas-powered pressure washers?
Simpson is the most consistent name in this category, with Honda GX-series engines and triplex plunger pumps on its professional models. Westinghouse, DeWalt, VEVOR, and PowerSmart cover the residential and budget tiers competently.
What is the best pressure washer pump for a Honda GX390?
A triplex plunger pump is the right pairing, which is what the Simpson Aluminum Series models use. Triplex pumps run cooler and tolerate sustained high-pressure work better than axial cam pumps, which are adequate only for occasional residential jobs.
Can a gas pressure washer damage concrete?
Yes, if you hold the nozzle too close or use a narrow 0-degree tip on flat concrete. Etching is permanent. Keep 12 to 18 inches of distance, stay on the 25-degree tip for general cleaning, and seal the surface afterward.
The Best Gas Pressure Washer for Concrete in 2026
For most homeowners cleaning a driveway and the surrounding walkways, the Simpson Clean Machine 3400 PSI is the pick. It combines the highest review volume in the group with enough pressure and flow to do the job, and it stays light enough to move alone.
Buy the Simpson Aluminum Series with the Honda GX200 if you want triplex pump durability, or step up to the Honda GX390 model if you clean a long driveway weekly and want 4.0 GPM with a 50-foot hose. For a single weekend of deep restoration on a smaller slab, the Westinghouse WPX3000 does the core job at a lighter weight.
Whichever you pick, match the flow to the area, keep the nozzle at a distance, and remember that the best gas pressure washers for concrete are the ones you will actually start without thinking about it twice.