you say your trim has yellowed? its become moldy and discolored?
you say your camping neighbors turn up their noses at you dingy trim?
is that whats bothering you bunky?
well lift your head up high, and give a chear for "grunge B gone" is here.
lol, actualy if its a vinyl or rubber product, bar keepers , might do it.
also i recall in the days of old when tires
were bold,,,(think wide white wall tires) there was a product for cleaning white walls. i would suspect it would work well on seals too. i know we used to get it from J C Whitney. but i bet most auto parts places can point you to something like it.
should whiten and brighten your seals like ipana toothpaste does those pearly whites.