[kozzy]

I have 3100 PSI Ryobi from Home Depot. I got mine because it had the Honda engine, which is solid. I use it on my camper, boat, and truck, as I would not use anything smaller than a 25 degree nozzle. That , or higher should be good to go, I have never damaged anything. If you use like a 0 degree, that will etch concrete, so never go to small. Just be mind full of decals when washing, and your nozzle degree and you should be good to go. I have both a gas and electric. I like the gas better, seems to be more powerful and do a better job. Just have to make sure its draining in freezing temps or the pump will freeze up. The electric, you can just bring inside.