I've owned this tractor since early '96. Its a '95 model and I bought it when it had 50 hours on it. The problem I'm having is that the dipstick keeps breaking off on the end. This is the second dipstick that I've put in since '95. Not sure if this is an isolated case or have other owners had this same problem. The pieces, roughly an inch long, are still in the hydro unit and so far no problems but something is causing them to break and I don't have a clue as to what it would be. There are no marks on the stick or anything abnormal. Any ideas would be greatly appreciated.