I am one that is generally not concerned with brands of oil....synthetics and what not. Don't care...Don't keep the truck long enough to care. I see billions of dollars worth of Machinary daily and I probably see 1% of all equipment failures related to oil/lubrication... And of those failures it was either derived from lack of oil or a mechanical failure of a luber pump. I am speaking of engines/transmissions/chain boxes/giant rotating gears/rotational pumps/ ect. ect. ect.
Engines that have had proper oil change intervals look fantastic after a zillion hours internally. I could go on and on.
With that being said, I have tested oil strait out of "high quality name brand" oil jugs...NEW, and even the new oil had more contaminates in it than CAT Inc. Allows for oil ppm. The only company that pays VERY close attention to there oil quality control is Amsoil hands down. And I'm talking all the way down to dipping rail car tanker loads and turning them down because they don't meet amsoil specs. Nobody else really does what amsoil does.... Not shaeffurs, not royal purple.
One major problem with the emmisions equiped trucks is fuel dilution of the oil from the regen injection event and soot buildup from egr. When running synthetics it is highly recommended to install a dual filter bypass system. One thing still remains though....you can't filter the diesel out of the oil.
In summary, get rid of the emmisions crap and enjoy your oil change with whatever oil you choose!!!
I just don't recommend "SuperTech" oil from walmart...