Hi all, been a while since I've posted and have some questions. I have a number of issues I'd like to share with you that my father has had on his x590 that he just bought brand new last year. He's owned Deere's since the early 80's and has had good luck with them, until this one. Now the dealer is giving him trouble with replacing the failing parts under warranty, so figured I'd come here for some support/ideas. The tractor only has 85 hours on it currently, I'll be ballparking the hours of each issue I'm about to list. Within the first 50 hours, he had the check engine light come on (this is the EFI gas engine) at the end of last season and the dealer picked it up to do the repair. (Apparently his owners manual only says "contact your dealer" when that light comes on.) They kept the machine all winter, finally bringing it back right when he needed to mow the first time this spring. He mowed with it for a few weeks and then had issues with it struggling to move intermittently, probably around 60-65 hours. He got off to check the transaxle oil and found it low, so he looked the machine over and found the entire underside of it covered in oil. Dealer picked it back up, ended up replacing the entire steering unit because some non-serviceable seal blew out around a shaft or something. He got it back, mowed for a few weeks, now yesterday that check engine light to have the dealer look at it just came back on again at 85 hours. And in between all of these issues, he's literally been melting the anti-scalp wheels off the pins. He's had 3 replaced under warranty and the dealer told him they woudln't replace any more because he must have the deck set wrong. He's been mowing with it the same way it was set up when he bought it and on the same deck height and anti-scalp wheel settings all while mowing the same property he's been mowing for almost 40 years and never had issues in the past. Needless to say, he's getting very frustrated and now worried what he's going to be dealing with when warranty runs out. Do you guys have any ideas, common problems with these to look for, etc? Thanks!