One of the first things I did beside washing was to use rubber protection on all rubber trim door, hood gaskets. The car sits outside. No usable garage. In northern NJ I have friends who always complain about frozen doors in winter. When I use Gummi Pfledge rubber protection the doors never stick or dry out over time and the rubber stays elastic. My old car with 210,000 never had a problem outside. The only problem I notice is that it does attract dust easy. The BMW guys really love this stuff on the forum I found it on. By the way the skinny rubber strip between the lower hatch glass and the car body seemed very gray and dry (take a look) until I applied this stuff. Now it's black and soft again. Oh by the way I also use 303 protectant but this stuff last longer for outside IMO. Clay bar and waxing is next as soon as the weather gets above 50deg.