The RWS video is not bad. Just do some basic lubrication EXTERNALLY, and oil the gun/metal (outside) surfaces regularly, but do NOT put any oils or RWS lubes inside the gun. This mean nothing down the air-transfer port which leads to the compression chamber and your piston seal. That does really nothing and may even hurt the gun in the long run. To properly lube the gun internally you have to take it apart and apply Moly and tar at the appropriate places, or have a tuner do it. Just clean the bore like others said and keep on shooting, while taking care of oil from your hands, ie: keeping the external metal surfaces clean and oiled (Beeman oil is good) after each use.Also do not store your gun in a damp room (basement, etc.) or anywhere with high humidity, or it will start rusting after a while.