Best Gas Pressure Washers

To clean outdoor surfaces, pressure washers use water to remove grime from items like patio furniture, driveways, and fences. If you’re looking to clean these areas without paying for professional services, check out our review of the top gas pressure washers.

Top Picks

Most Lightweight: Westinghouse Gas Pressure Washer

Best Heavy-Duty Washer: Champion Commercial-Duty Gas Pressure Washer

Best Medium-Duty Washer: Simpson Cleaning MegaShot Gas Pressure Washer

Best Warranty: Simpson Cleaning PowerShot Gas Pressure Washer

Best For Light Jobs: Generac Gas-Powered Pressure Washer

Buying Guides

Engine

Gas pressure washers typically feature four-stroke engines, although some have two-stroke engines, which are commonly found in smaller tools such as gas chainsaws. Four-stroke engines are known for lasting longer, being quieter, and emitting fewer emissions than their two-stroke counterparts. In contrast, two-stroke engines run faster than four-stroke engines. Horsepower (hp) is another important indicator of an engine’s quality, as it reflects the engine’s power. A higher hp rating indicates more power.

Hose connection

It’s important for a gas pressure washer to have multiple connection ports that are easily accessible and can accommodate different hoses and attachments, even those that are not included with the product, in order to enable more customized cleaning jobs.

Pressure

The machine’s water pressure is measured in pounds per square inch (psi), and a higher psi provides more power to remove dirt and grime. Many machines feature adjustable pressure settings that allow you to customize the water pressure to suit various tasks.

Spray Wand and Volume

Spray Wand and Volume are two important features to consider when choosing a pressure washer. The spray gun of a pressure washer usually extends between 25 and 35 feet and comes with multiple spray nozzles. Gallons per minute (GPM) is a measure of the amount of water a machine can supply, and a machine with high pressure and volume is ideal for cleaning large areas with tough grime.

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FAQs

How much PSI should a gas pressure washer have?

A medium-duty gas pressure washer with a PSI range of 2,000 to 3,200 is suitable for basic household tasks, such as cleaning a driveway or deck. For commercial-level power, opt for a gas pressure washer with a PSI of 3,200 to 5,000.

Are all pressure washers powered by gas?

No, pressure washers can also be electrically powered. While electric pressure washers are more portable, they have less power than gas models. However, both gas and electric pressure washers can be effective in cleaning surfaces.

Why is oil necessary for gas pressure washers?

Oil lubricates the engine, which prevents it from wearing out. Two-stroke gas pressure washer models mix oil with gas, while four-stroke models have a separate compartment for gas and oil.