My Hollowtech II (Deore) bottom bracket lasted less than two years and just a few hundred miles. I guess time is worse for it that miles? The bike only got ridden in wet conditions a couple of times and never more than a mile, yet right now the bottom bracket is gooey and crunchy.

I tried to remove the seals to see if I could just overhaul each side but I damaged the seal on the left side so off to the LBS for a new BB.