The 1995 factory manual said to use silicone grease (GM 12345579 or equivalent) on weather-stripping. If you have tried something other than silicone grease, how is it working for you? An older post mentioned Gummi Pflege instead of silicone grease. I am getting ready to do maintenance on my convertible top, and was just going to use silicone grease again, but am interested in hearing what products people are currently using.