Originally Posted By: JTK
I like to saturate the seals with silicone spray, wipe them with a clean rag, lightly spray again, then leave it alone. There's a hardware chain in my area that puts cans of silicone spray on sale a bunch of times a year for something like $1.99/can, so I've always got a few cans on hand. It's great for sticky wooden windows, adhesive removal and hand cleaning as well. More expensive silicone grease can be massaged into door seals as well. You'll find that at car parts stores or dealer parts counters.
Joel
Silcone is the worst thing you can use. I know it looks great and seems to work. However - the long term problem is silicone will damage your seals. I learned this the hard way by having to replace seals on my Corvette 2x until I figured out it was the silicone. Even Armor all is bad due to silicone content. Your seals will dry out, tear and shrink. I hear 303 works good. But the owners manuals of many cars recommend die-electric grease! i use Dupont Krytox which is probably the best but cost is outragoues. Me and 4 guys split a gallon of the stuff and so little is needed that it'll last my lifetime.