Just bought my ‘21 3 months ago and I never see it move off zero, yet it regen s around 1000-ish miles. I understand regen, but it seems excessive and wasteful if there’s no buildup in the DPF. This is my first Cummins (and 2500 for that matter). I’m used to seeing active regen on my ‘16 ecodiesel that I traded in. Not used to seeing this automatically regen when there no reason to.mine has shown zero for the 3000 miles i've put on it.