What to use on gel-coat finish?

Just wondering what product the factory recommends to use on the gel-coat finish of our Big Horn 3055RL ? How often ? Thanks, jjjelm

Gel Coat

Hello:

I had a problem with the lower part of my right side being inundated with diesel smoke. I used "black streak" remover to no avail. I tried one of the dishwashing sponges (scrub type) and it scratched the gel coat. I then used Mr. Cleans "magic" sponges and with a little scrubbing, the diesel came off and kept a shin to the gel coat.
To buff the scratches I used MeGuire marine/rv polish. It works well with a Ryobi buffer that you can purchase from Home Depot for $25.00.

Hope this helps,
Tom