[ursus]

QUOTE: The presence of the oiler is have a place to add (and store) oil as it is gradually fed to the bushing.

That makes sense. I am aware of porous bronze bushings and understood that they were originally sold under the Oilight name. I wasn't aware that they could be fed from the exterior side. The old instructions for this type of bushing simply instructed one to soak the bushing in oil prior to installing.