I recently purchased an ex-Police Road King and today gave the bike a good going-over. When I attempted to check the air suspension pressure, moisture sprayed out of the front & rear Schrader valves. It smelled a bit like oil, solvent or WD-40. I can understand fork oil may get into the front line air, but what about the rear shocks? The manual warns that moisture may spray out, however mentions nothing about adding oil to the rear shocks so I wonder where it came from. Also the manual states to use a “no-loss” air gauge. What is that? Does anyone here use a standard tire dial gauge?