hey guys, new guy to the kubota scene here. i come from a back ground of vintage cubs. i own a 63 100, 72 108, 79 1450, 77 1200, 74 128. i am picking up my very first kubota this weekend. it's a HST t1600h. i've been searching the net for answers to this question: how/when do i need to change the hydro fluid and/or transmission fluid? i've seen where people say not to change the fluid, just add to it because it takes up to a day and a half to prime the pump. i'm a firm believer in frequent "fluid" changes/checks. would you be so kind to give me your opinions on this matter. thanks, jeff ps, pictures will be added this weekend, i know everyone LOVES pictures!!