There's probably not a wrong answer on this subject. I suspect some products will work better than others but I can tell you what Airstream sells in their service department in Jackson Center... Glare
Check out Glare at their online store
The wash works very well and even our 1992 Classic looks better when we wash it with this product compared to other washes we've used.
Airstream also recommends several of the related Glare products. Call the factory service center in Jackson Center for more details. Airstream may also have some information on their web site.
Glare is not available in retail stores and I don't think you can find it online except at the official web site.
I use it for our automobile too and the also use the polish on our automobile. It works great!