I cant see the need for one on either type of oiling. I am all for priming an oiling system on initial start up of a new build but even I wonder just what good your doing. You applied assembly lube to all your bearings and moving parts when you put it together. Then (if your like most guys that want 100psi of
oil pressure) you prime the system and flush it all out..lol. Dont get me wrong, I just built a little motor and I used assembly lube and primed it. Something about not priming just seems wrong.
It still begs the question...are you really preventing anything by priming? Should you not use assembly lube if your going to prime? Should you prime and roatate by hand to insure full coverage of moving parts?
Just thinking outloud.