Take the pointy nosed oil can nozzle, shorten it a bit until it fits snugly just inside the oil port hole, and then with a trianglular file..file a slot in the nose of the nozzel. This prevents the ball from blocking the oil coming out of the nozzle if you press it in too deep or hard.
Gunner, who has modified all his oilers in this fashion.
"Pax Americana is a philosophy. Hardly an empire. Making sure other people play nice and dont kill each other (and us) off in job lots is hardly empire building, particularly when you give them self determination under "play nice" rules.
Think of it as having your older brother knock the shit out of you for torturing the cat." Gunner