Finally, I have discovered the magic potion that makes my old 94 Southwind look new again.

Over the last 3 years I have watched the finish on my exterior fiberglass get uglier and uglier.It has very fine hairline cracks/ scratches in the gelcoat, virtually all over. I tried every cleaner I could find, but I kept getting these dark blemishes all over. Not large solid spots, but more like what your skin looks like when you have the measles. Tiny spots virtually everywhere.

I couldn't get it to clean off, and I could not find a wax to give me back some semblence of a shine either, not by hand or with a buffer.
About a month ago, I was disinfecting my water tank, and spilled some bleach I was using, down the side of the RV. I forgot to wash it off. The next day there was a beautiful white spot there. Plain household bleach and the white shined through

So I put on the gloves, filled a squirt bottle with 1/3 bleach 2/3 water, and using a VERY light green scrubby, went at the whole unit from top to bottom. Not only did it make the white shine, but it evened out the blotchy look on my gray cargo doors and skirts.
Once I had it all shiny clean, I figuerd OK here comes the grueling hand waxing and buffing to get a shine maybe.

Instead, I tried the new Turtle Wax Ice in the paste form. When that dried to a haze I used Eagle One spray on Wax as you Dry, applied over top then wiped it all down. The result is just fantastic

Clean, Shiny, and Uniform.