It looks like I'm going to have to do it myself. I've tried RV wash without success. How do I clean up the white skin and polish the aluminum?

I take my trailer to a Blue Beacon truck wash.  Fastest and best wash available IMO.

Good for you! Where is that?

Valleyvet sells it. I can't remember the name of the stuff.

They have them all over....they are a chain...but i used the one in Oklahoma City.

I washed my truck and trailer [small bumper pull] last week and it cost $34.50

That included "brightening" the aluminum trailer.

Theres one in Hammond, La and I think theres one in Shreveport Louisiana too. google and you can find them.

Yes!! I found one an hour away in Shreveport. Thanks, guys.

I drive almost 2 hours one way to get to the Blue Beacon but IMO it is worth it.

I got one trailer professionaly polished a couple of years ago - made it look brand spankig new.

However a couple of weeks ago i found this spray in my dads shop, decided to give it a whirl to get the bugs off the front of the trailer. Worked like a charm. Started to use it on the yellowy/grey grime that had built up on it too (previous owner didn't wash it much, didn't look bad but didn't look great)

Some elbow grease and a wash cloth and it is sparkling. However handwashing your entire trailer with a wash cloth is not ideal for most people - its certainly not how I wanted to spend my sunday afternoon.

Strong windex, thats all it takes. Elbow grease is up to you.

So your saying its windex you used?

My father-in-law used to drive truck for a living. So he had a contact at a truck repair place. Every couple years, I take my trailer in to get acid washed. Doesn't take too long, is cheap (in my opinion) and they do a great job. They are just a local shop. They're used to sparkling up semi trucks, but they do a good job on my horse trailer too!

Just to clarify, when i take my trailer to the Blue Beacon truck wash, I am having my trailer "acid washed"....or as they call it, "Deoxidized".

When I wash it myself, I use Dawn dish washing liquid. 

Acid Wash is OK - it does take the finish off and will wear down the decals on the trailer. It will make it shinier for now, but duller down the road. Get a polish and do it right.

EQ solutions make a great trailer wash product. We were amazed with how nice our trailer looked after we used it.