I'd always used chain lube (spray), and it always left my rear wheel a greasy mess. An hour after riding, it would be as bad as if I had never cleaned it. I decided to try chain wax this year. So I cleaned her up, rode for 50+ miles, and it's still clean. I guess the final verdict is still out since I haven't ridden for hundreds of miles yet, but so far I'm pretty satisfied. So if you have experienced a similar problem, maybe switch to some chain wax and see how that works for you.