For your weatherstripping I would recommend cleaning rubber door, trunk and hood seals with soap and water twice a year. Treat the seals with a water-based vinyl and rubber dressing. After coating the seals, allow the dressing to penetrate for 10 to 15 minutes, then dry the seals with a clean towel. I recommend Einszett Gummipflege on seals. It dries completely oil-free, and the shoe-polish-style applicator makes it very easy to apply.
Some vehicle manufacturers recommend using talcum powder on door and hood seals to provide lubrication. This will extend the life of the door seal. Simply sprinkle a small amount of talcum powder on a small piece of T-shirt material and wipe it onto the seal after applying rubber and vinyl dressing.
Rubber seals around windows, lights, door handles and mirrors should also be cleaned twice a year using a brush and soapy water. However, these "exposed" rubber seals should be treated more frequently than door and hood seals, as they get heavy UV radiation from the sun.
I recommend treating window seals with rubber and vinyl protectant once a month. Apply the protectant prior to cleaning your windows. Use a generous amount, and allow it to penetrate before buffing dry. When working in tight areas, use a cotton or foam swab to apply the dressing. Use a quick detailing spray to clean off excess protectant from painted surfaces.
As far as your winshield wipers go, The best overall maintenance of your blades is keeping them clean. If you want to protect your blades, use a product like
303 Wiper Treatment. If you have expensive after-market blades, 303 Wiper Treatment will make them last twice as long.
Hope this helps!
-Jerod
