Rebuilt engine initial fiasco

I was told I didn’t need to prime to it because they had put something in the oil pump that would delete the need for it. The material they used, I don’t remember the name but was told it would mix in with the oil.
Well, yeah that's the pump only. I've seen guys use Vaseline or whatever and it works obviously, it puked oil all over your floor. I'm talking about the rest of the motor. Just thinking maybe bringing the pressure up with a drill would have caught that leak?