2016 DD13 GHG17 Cascadia - DPF filter longevity

[dd13cascadia]

(01-08-2026 )mikkhh Wrote:  How much idling time morning warmup takes?

What are your dpf differential pressure readings on idle? How big difference there was with the old DPF? Are regens more infrequent now ?

Intermittent MIL was caused by what faults codes? Maybe you have those for reference?

I was going to say I didn't know on idle, but One of the last code reports I took was actually at idle. The other one, a couple days earlier shows a snapshot as I was rolling on the highway. I haven't checked with the new filters. Did my first drive today. Fuel mileage felt slightly better, but not much and too soon to tell. Route and weight was the same.

The code I had the most Was for the nox outlet sensor. Showed on the screenshot. The vehicle speed turned out to be the sensor by the transmission. Fortunately. Attached go oil samples. Note that there's one where the sample is high on wear metals. That's when I switched to Mobil Delvac from Valvoline premium blue (both 10w30) but the Mobil not being full synthetic and it Was a big mistake. Switched back to Valvoline premium blue and did rolling bearings just to be safe.

In the morning I low idle until oil reaches 35 Celsius and after that high idle till it reaches 60 degrees Celsius. All that talk about idling to warm up, I call BS. Stats speak for themselves.