this was going into the last regen, before the second regen light (DPF Temp) came on.
It was about 70f out, does the temp gauge seem too cool?
Air filter is cleaned regularly with compressed air, I have not replaced the air or the fuel filter, as they are a long way from their rated replacement periods (500 hours) and there has been no noticed indication of required replacement such as rough idle/running, etc.
I have not noticed any engine oil usage. Oil/filter were replaced at 50hrs with conventional 15w40 with a stock LS filter and again at 150 hours with synthetic T6 15w40. Just checked the level, same a when I filled it 150hrs ago.
I don't let it idle even close to 10 minutes. a minute warm up and 2 minutes cool down, and now and again when trying to hear my wife say something, that's about it.
the only way I know of to check the soot load within the DPF would be through the dealership diagnostic computer.
The engine manual recommends 10w30.
Maybe dump the machine at their door and leave it till fixed.Sounds like too much soot to me.
I have a MT352 only re-gened 1x in 50+ hours during snow removal I only noticed cause the ice was melting off the snow bucket faster than usual and looked at the light for re-gen was on only lasted about 10 minutes and noticed no difference in performance.
What would cause too much soot??
Eliminate fuel issues maybe dump and clean the fuel tank and lines. Then move on from there.
Noticed your last re-gen took 20 some hrs ?? I'd bet you got the tractor with bad fuel already in there and your tank is contaminated... my guess.
Edit:
Clean fuel injectors maybe they got clogged with bad fuel in tank from original purchase.