Rolling mill auto-oiler


I am doing a top to bottom rebuild of a Cavallin Production Rolling
Mill 6" x 3 1/2". For many years we have used 75/90 gear oil in both
the gear box and the automatic oiler for the roller bushings and
driver connectors. The gear oil was a good choice for the gear box,
but, I have a few signs that gear oil was not a good choice for the
oiler. I am wondering if any one has accurate about oil
choices for the auto-oiler?

Daniel Culver