If you think about it, a gas-powered pressure washer is basically an engine and a pump.
Medium consumer gas pressure washers feature direct drive systems with axial cam pumps. It’s the size of the engine, however, that determines the strength (and price) of the pressure washer.
Basically, you’re buying cc's. The greater the cc's – the larger the engine – the more expensive the pressure washer.
What Can it Do?
With 3000 PSI, the more appropriate question may be, what can't it do?
These pressure washers have the power to take on some of the toughest stains. They even have enough power to strip old paint.
All medium consumer gas units are cold water - meaning, your main limitations will be related to hot water cleaning. If you need to remove oil or greasy stains, a cold water power washer probably won't cut it. To get these messes clean, you'll need to step up to a hot water unit.
While none of the small gas pressure washers offer on-board detergent tanks, our best medium units offer this feature. The other, lesser option is a siphon tube, which you place in a bucket of detergent and water.
The more efficient option is definitely on-board detergent tanks. A lot of cleaning projects, such as washing your siding, require additional detergent to get completely clean. Just add detergent to the tank, conveniently located on your pressure washer, and you'll be able to use it without having to stop and set up a separate bucket.
A nice feature that accompanies medium gas pressure washers is a cavalcade of spray tips - allowing you to tailor your spray to your cleaning task. If you're rinsing detergent from your siding, go with a wider spray. But if you're blasting mold and mildew from your walkway, choose a concentrated jet spray.
In a 5-pack, the tips are usually:
- 0° - red, concentrated pencil jet
- 15° - yellow, high performance
- 25° - green, multi-purpose
- 40° - white, sensitive surfaces
- 65° - black, low pressure detergent application