49.9 hours on my MX5800 that I purchased new 3 months ago. I'll be completing the 50 hour maintenance this weekend. I've used it run my brush hog, box blade, move dirt with my FEL, move a lot of downed trees with the grapple (had a lot to move here in S. Georgia after hurricane Irma), and even pulled an 18 wheeler hauling a mobile home out of the mud. Thus far, not a single issue. Have kept the FEL greased as recommended and check fluids every use.