Doc life span

[joed2323]

Just a few questions regarding the doc life cycle.

Im curious if my cummins dealer does this correctly.

Normally you can send in a dpf to get baked, sometimes it passes sometimes it doesnt with there testung procedures "aka machine"

Ive cleaned docs before with a long air gun and or water. I look thru it with a flash light... Yup looks clean good to go.

I asked my cummins dealer how do they test them?the service tech said they just blow them out also. But I asked them about the life span on them, and they looked at me like I was talking in some "mumbo jumbo language" and said thats above their heads.

I asked them about the "special metals" or platinum coating and asked them well this has to get washed out eventually, and he looked at me like wtf

Can you just keep cleaning the doc repeatedly like cummins states? Buying a new dpf and using a doc that was cleaned out 2-3 times is ok?

You think they would just want to sell more parts and make more money and tell me, docs only last so long and then you gotta replace them just like any other filter.

Gettin these dpf filters baked to me is a crock of crap, especially when you turn in a coolant soaked dpf filter and they call and tell me your dpf is cleaned and ready to go...ok wait what, plus when the dpf has been forced regened umpteen times.

I know a doc is basically a catalytic converter, but is their anything else I can look for in the doc to actually know I have a good working doc before I stick it back on a truck?

The first few replies will be remove the mandate, trust me I would love too but the place I work for will never ever do it.