When you delete the DPF and EGR, you'll find the oil lasts longer and won't increase during the operating interval.
Ken
I think you will change your tune when your State starts with annual Emissions testing, installing and removing all that crap will get old fast, I wish I could rid my truck of all of it, but in CA, it won't happen
Just goes to show that doing it yourself is the way to go.
It does still amaze me how many people/dealerships beleive that crankcase capacity is the amount needed to add at an oil change. It's simply that crankcase capacity, not oil change amount. There is always some oil left in the pan/cooler/block and just blindly adding 12qts will almost always yield an overfull condition. . which just as amazing is the response "the dipstick must be wrong". .