The DW and I just finished cleaning our 40 ft Monaco with Aero Cosmetics Wash Wax All. As stated by others above, it is a great product,
it only took us 2 hours to do the whole job, and I could not be happier with the results:
That's right; 2 people for 2 hours to wash away 12 months and 5,000 miles of sun-baked road grime, leaving a lustrous, restored shine.
This is my first application, so I have no idea how long she'll look this good, but if I have to do this a few times a year, I'll be happy.
BTW: we bought the 144oz Wash Wax All kit on Amazon and only used 1/3 of the product to get the results you see.