Important: 
   •  Do not reuse any of the existing oil lines or oil line fittings if there
is excessive corrosion.    •  Do not reuse any of the existing retaining rings that were removed from
the existing quick connect fittings. Install new retaining rings.    •  Make sure the following procedures are performed when installing the new
retaining rings onto the fittings. 
Important: Do not manually depress the retaining clip when installing the plastic cap.