The Panther jet frt bearings does take 90 wt (as HJ/Patrick described) but its very important not to overfill it they only take about three ounces ,overfilling will/can cause overheating of the "Timkin style tapered bearing" The Panther also uses a "mechanical shaft seal" which is very sensitive to debris and "fowling" (fishing line etc)Fowling of the seal will "milk the bearing oil Tom