I have a kubota mx5200dt (gear shift not hst) and my first regen was at 22 hours. I now average 12 to 14 hours between regens. Have 800 hours with no issues yet. I do a lot of forward and reverse loader work, skidding firewood, stationary work at high idle (1500 + rpms), and bush hogging. When bush hogging and a regen starts, it goes into regen mode almost immediately (regen light stays solid). Any other task requires pto speed for awhile to get it going into regen mode. In other words regen light will flash for awhile, even after I raise rpms so raise rpm light goes off.
it does not seem to matter what task I predominantly do between regens, it almost always hits right around 13 hours like clock work. I wonder if a hst model that spends most of its time at full rpms even during direction changes or precision placing would have longer intervals between regens then my gear model that throttles up, then down for such maneuvers???
When I bought mine around 2.5 years ago I had my choice of hst or gear. I asked dealer which model has more dpf issues and he said the hst they are finding. Not because of the design, but because the operator s seem to putt around half throttle and let them idle a lot more then they were seeing with the gear models operators who ran the rpms higher usually and shut the engine off more then letting it sit and idle. Whatever? I bought the gear because that is what I wanted. Like I said, it has been flawless for about 800 hours regen about every 13 hours. I actually (so far) don't mind this style engine. Kinda like it, but that's a different topic.
