I got my bike last August and did some light riding at the end of the season. I have started riding heavily this season and had my first race a few weeks ago. It was rainy and cold out and as a result my bike was caked with mud after the event. I live in an apartment so I can't really spray down my bike or get down and dirty with it unless I bring it outside (which I haven't had a chance to do with my work schedule). Most of the mud/grime has dried and I'm getting a grinding noise/sensation when I pedal. I have never washed the drive train so I think it's long overdue.

What chain lube do you guys use and trust? I'm looking for something that's reliable in nasty weather.