You have to feed it after the oil has gone through the pump and filter, correct work
I'm sure it can't hurt to take it apart now and then and look at what has collected inside of it and clean it up, I wouldn't do it after every oil change unless it had a part fail like spinning a rod bearing or some other metal making failure that would contaminate the oil work shruggy
It's your choice shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)