I noticed some white/gray smoke coming out of the end of my crankcase breather hose the other day (driver's side, just inward from the clutch power cylinder). It's not spewing or anything like that -- more like the amount you'd expect to see if a little spilled oil was burning off an exhaust manifold after doing an oil change, etc. I actually thought it was just some spilled coolant burning off, as I just drained/flushed/filled the coolant the other day. But the smoke persists, and I now see that it's definitely coming from the end of the breather hose. I'm afraid to ask, but...any thoughts on what the likely culprit could be? Or is a little smoke like this perfectly normal?