Thanks for the reply, I'll change the oil here at 5 hours again at 20 and maybe again at end of summer, depending on how many hours are on it but it won't go over a hundred for the next one, the hydros will get done at 30 or 40 hours then again at around a hundred as well. I try to service my stuff adequately, car etc. I have a new 23hp Kawasaki Fr691v thats just POS can't keep it out of the shop., thats kinda why I went with the Kohler this time, this zero turn will be a back up to the Kawasaki if I ever get that engine running right.