IMHO you cannot get too much lube into an AR. unless it is running down the barrel that is. On a long day at the range, we will shoot 2000 rounds through the 2 AR models i own, and i drench the BCG in Mobil 1 Full synthetic 5w 30 before starting the day. i can run wolf or tula all day with no issues through my armalite and panther arms. the whole concept of "running it wet" works.
if at first you dont succeed, get a bigger hammer!