The NorthStar 1577544 is rated at 3,000 psi, with a 2.5 gpm flow rate. Its major draw is a Honda overhead cam engine, which gives it plenty of power and durability. Adjustable pressure is another desirable feature. It has an axial cam pump rather than a more dependable triplex pump, however. Still, owners seem to love it; they give it overwhelmingly positive feedback. If you'd rather spend a little less and don't need quite this much power, the 2,600-psi Troy-Bilt 20415 (*Est. $340) gets good reviews.
We found owner ratings and reviews of the NorthStar 1577544 at NorthernTool.com, the only online retailer that sells NorthStar products. Yesterday's Tractor Company compares the NorthStar with two other pressure washers in terms of how well they clean tractors.
Close to 60 owners review the NorthStar 1577544 on this site, giving it an almost perfect average rating: 4.9 out of 5 stars. All say they would recommend it to a friend. One writes, "This unit made very quick work of the moss on the northern side of our house and I was able to power wash both our back deck and side porch in no time. Trust me if you decide to purchase this unit you will be looking for things to pressure wash."
Review: NorthStar Pressure Washer -- 3,000 psi, 2.5 gpm, Contributors to NorthernTool.com
2. Yesterday's Tractor Co.
This review compares three pressure washers in terms of how well they clean tractors. The NorthStar 1577544 outperformed the other two washers, easily removing all of the caked-on mud on the tractors.
Review: Pressure Washers, Editors of Yesterday's Tractor Co.