Hello all - I recently purchased a '95 Del Sol Si with 113k for my daily driver. Love it so far - bone stock, in great shape and has been garaged its whole life. Took me months to find a good one on Craigslist.

I've been going through the archives reading about roof seal maintenance and ordered the Shin-Etsu dielectric grease per the suggestions of board members.

My question - how often does the grease need to be re-applied to the seals?