I got some good advice here about this first service. I thought I would share how mine went. I used Kubota Hydraulic and HST filters, a Wix oil filter, SUDT to top off the hydraulic oil ( I lost about 1.5 quarts ), and decided on Rotela T6 Full Synthetic 5W40 engine oil. My local Kubota dealer said most customers are going with 5W40 Synthetic from 50 hours on. Not much fluid came out of the engine until I removed the oil fill plug then it rushed out both drain holes onto my shop floor. Either drain one side of the pan at a time or use a really big drain pan. HST filter didn't lose much oil there, but it really pours out when you remove the Hydraulic filter so be as quick as you can putting the new one on to minimize fluid loss. Thanks for all the advice and experience. I am really enjoying my new Kubota.