Golly, I had no idea you were going to be so technical! When it comes to washing the car, that's the first thing it gets, outa th trailer, if it'll roll by itself, sometimes you have to repair things, just to make that happen, and when you're a one man band, it's a challange, anyway, over the years, it seems like the mud and stuff has been harder to remove, so I went with an electric power washer, 1700 psi, quiet, and a nice Karcher can be had a Big Lots for around 70 bucks, only runs when you pull the trigger, makes it so much better than a gas powered, 4k psi, that blows the panels off when you get close to the car, plus, it's easy to start! I think everyone has pretty well covered everything else, and the more you do it, the more you'll add, or do only occassionlly. One thing I want to stress, when checking bolts, be careful, I watched a guy break every arm and stop on his car, over the summer, and I tried to tell him, and show him, but he thought if you could move it, it wasn't tight enough, so everytime he ck'd them, he'd move them about a flat, next thing, it's on the ground, so just be careful doing that, someone with no feeling, can easily add to your woes. Bob!