That was one of my questions, does each individual disc have an oil resivior. i see a bolt under them that looks like it may be a place to add oil. The gear box was low on oil when i bought it. i took the vent bolt out and it apears to have a dip stick on the bottom of it with two marks on it i assume are the low and high marks. I added 90 weight until it reached the line. I will look online for the manuals. Thanks for any input.