Detailing an older motorhome

No on the power washer. I tried them before and they don’t really get it clean. Yes it removes most of the dirt, but still leaves a film. For washing I use a wash mitt or wash pad on a pole. No brushes ever as they leave swirl marks (which are inevitable, but brushes seem to increase the number). For waxing, since mine is new, full paint, I simply use any of the modern spray on, wipe down products like Lucas Slick Mist. Provides a nice shine and UV protection without a lot of work. NO more “WAX ON, WAX OFF” for this guy.

Bucket and brush. Dish soap in warm water. If I'm stripping old wax I'll pretreat with Dollar Store LA Awesome mixed up in a garden pump sprayer. Heavy stains I'll use liquid Bar Keeper's Friend. For a wax pick one.

If you want to attempt a power washer use a wide spray and a couple of feet distance between the nozzle and the coach. Get aggressive with a high pressure sprayer and you can create water leaks.

Magic Eraser does quick work cleaning the awning.

Mr. Clean Magic Eraser. By far the most revolutionary cleaning agent in decades.
BUT...
You can get generic for a whole lot less. I bought 'em on Amazon here;
https://www.amazon.com/gp/product/B072LWTTBR/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Just did all the windows in my house using just one. Every water spot and fly speck now gone. No streaks, used with Costco's window cleaner solution and a squeegee.

I've used a truck stop twice. No problem. The only problem with them is timing:

First come, first served. Average 18 wheeler takes about an hour. Car carrier, 2 hours. Best time to arrive is around 1AM on a Sunday morning. Might be there a few hours anyway. If you have decals instead of full paint, TELL THE ATTENDANT.

I surely don't make a habit out of using the truck wash. For me, a hose, long brush and soap does it. Simple Green on the roof once a year. (re-caulk every 2 years, too.)

one thing I agree on with the above, stay away from high pressure truck washes. I've never used dawn on the TT I have abut I would imagine you may have to re wax it after you use it. a cousin of mine who has a MH and has a macerater says to use rv toilet paper as the regular paper jams the pump. since I don't have either I just use regular tp. black tanks are storage tanks not septic tanks so that is why I use reg tp.

I have a 2004 LaPalma. For the past 13 years I have hand washed it with a long handled brush and Dawn dish soap.

I wash and scrub the roof with a strong mix of Dawn about twice a year.

I went through a truck wash that used high power sprayers and my refrigerator quit working for a day or two. Never again.

I'm going to get beat up on using Dawn so while I'm at it I'll throw in the fact that I use regular toilet paper too. No RV toilet paper. Two toilets and nary a problem over the years.

Oh I forgot to mention I don't use a water filter either. Nor a surge suppressor!!!

I'm hiding under the table now, gonna get mean in here soon.

Buy a pound of elbow grease and get to it! Mild dishwashing soap too.