I bought a used 03 GH-225 in 06. It had 1100hrs on it and now has 1400. I was born without my legs from the knees down and were both prosthetics. A ZTR is GREAT for guys like me, no more riging up hand controls on tractor mowers. I am mowing my yard which is about 5 acres as needed and a wooded 5 acres behind my home 5-7 times a year(to many trees to grow much). The mower has been doing a great job. I change the engine oil every 50hrs and the hydro oil every other year. I average about 100hrs a year. At 50hrs the engine has used about 5 oz of oil. The hydros weap just enough oil to collect dust around them. Is that normal? The Dealer in Bowling Green told me to use Kholer engine oil and Chevron hydro oil. How long do hydros last? Should you have them rebuilt before you have a problem, at what time? Should I sell the mower and buy another? I could not afford a new GH. I thought about a Bad Boys. I have also thought about just repair the GH as needed. The hydro part is what I am concerned about the most. ANY advise would be great!