I use meguiar's paste cleaner wax. It goes on like any other paste wax but wipes off easily leaving an extreme shine that will last a year in Ohio weather. I just completed my Excel, I also used it on the chrome, wheels, hitch, generator cover and propane tank as far as I could reach, it helps keep the rust off of them. The mild cleaner in the paste removes dull road film, it makes a big difference in the color and depth of the shine. Great product.
Nick