My owners manual recommends against pressure washing as it may remove the decals which is not covered under warranty. On the flip side, I picked up a gallon jug of boat and rv wash concentrate at Lowes where they sell power washers. I am seriously onsidering trying to power wash this weekend before I put my trailer back in storage for a couple month - gotta get them damned bugs off it - jeesh, the way they are plastered to it, you would think they thought they owned the trailer. My machine has 4 separate nozzles (low-pressure, gentle, normal, hi-pressure). Since low-pressure is used to put the soap on, I will try either the gentle or normal nozzle. If it works, it will definitely beat the bucket, brush and hose method.
Larry