I use a grunge brush, WD 40 and a rag to clean, then spray with PJ1 chain lube. Removing, cleaning, boiling, etc is just WAY too much work. I'd rather replace the chain and sprockets more frequently than spend my time doing that. Come to think of it, I'm not much for cleaning and polishing either. Used to do that, but now I live up a mile of dirt road. Doesn't seem there's much point.