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Gas pressure washers earn top marks for fast, powerful cleaning

Gas pressure washers are the most powerful type of pressure washer, delivering up to 60 times the water pressure of a garden hose for superior cleaning. For washing your home or cleaning concrete, "unless you have a very small house (or a house that's not particularly dirty), it's likely that an electric machine is not powerful enough to do the job," advises Roy Berendsohn of Popular Mechanics.

The higher water pressure means the job gets done faster, with one professional testing organization reporting that gas pressure washers finish up to 10 times faster than electric pressure washers. However, their powerful spray can more easily damage materials like wood and auto paint. As with any gas-powered tool, these need regular engine servicing.

Hundreds of owners say the Generac 6024 (Est. $400) is the best gas pressure washer, partly because of its powerful 3,100-psi, 2.7-gpm spray. The five quick-click spray nozzles give it extra versatility. By pairing the right tip to the job -- and giving you a range of 2,600 to 3,100 psi -- reviews say the 6024 can wash a delicate car finish or scour the grimiest patio. "We have really put it through its paces at three different family properties, and I couldn't ask for better performance," says one owner at PressureWashersDirect.com.

Experts at PressureWashersDirect.com say the Generac 6024 is one of the top-three gas pressure washers, praising its easy-to-start Generac engine and high-quality Annovi Reverberi pump. Reviews say both components balanced over the 10-inch wheels make for undemanding maneuvering. Two on-board detergent tanks and a two-year warranty also add to its value.

For a pressure washer with even more kick, consider a prosumer unit. These "are the bridge between consumer and professional units. This brawny group of pressure washers is meant for larger projects, farms, estates, and small businesses," says Bill Mikenis with PressureWashersDirect.com.

Mikenis and owners at HomeDepot.com, Lowes.com and PressureWashersDirect.com agree that Generac's 5993 (Est. $600) is the best prosumer-grade gas pressure washer. With an Annovi Reverberi triplex pump, overhead valve horizontal shaft engine and steel-braided water hose, many reviews say the 5993 is well built and durable. It's powerful enough for contractors needing a light-duty pressure washer, while large wheels, a well-balanced engine and the comfortable trigger keep this pressure washer consumer-friendly. A low-oil sensor protects the engine, while a thermal relief valve keeps cool water running through the pump so it doesn't overheat when you take a break from spraying.

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Generac 6024 3,100 PSI 2.7 GPM Gas Pressure Washer
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from Amazon.com
New: $498.00 $399.00   
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Generac 5993 3,100 PSI 2.8 GPM 212cc OHV Gas Powered Pressure Washer
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from Amazon.com
New: $747.00 $539.20   
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