What does Your DPF Look Like? ...

[EricB]

This is what my DOC looks like when it gets face plugged. I do not loose coolant so I suspect this is caused engine oil. Could it be from the Turbo seals leaking? I suspected my turbo was leaking oil and had Cummins check it, and they said its fine. I do not think it is the pistons because it sometimes do not use any oil. I could drive 10k miles and not have any loss of oil but right now it is using about 1 gal of oil after 10k-15k miles. I cannot think of any other ways to loose oil except through the turbo and maybe the valve seals.

My truck is a 2010 Kenworth T370 with a cummins ISC and 728k miles