Originally Posted by Dave Cutter

Weather (or climate) makes a world of difference on how dirty/gritty your chain might get. And how long/far and often you bicycle makes a big difference too. My back-up bicycle hasn't had it's chain oiled all winter..... of course it hasn't been ridden ether.

Chains need cleaned when dirty... and oiled when dry. Touching the chain will tell you if it's dirty.... and listening will tell you when it's dry [because you will hear it]. Poor shifting lets the cyclist know the chain might need some sort of attention... likely cleaned and oiled.

There is as many opinions on HOW to maintain a chain... as there are cyclists [humor]. I won't comment on that part in this thread.