Simple
Rifle,
While I can greatly appreciate your bringing the thread back to basics, lets ask one SIMPLE question... . is there anybody with 1/2 million miles on their Cummins with an honest report of using the said super oil? I know of a 2nd generation 12 valve with 497,000 miles on it and going strong with Delo being the lubricant of choice.
In all honesty 40,000 miles on even a gas engine just is not a lot and on a diesel its not broken in yet. I would like to feel as though you have proven something here but not with so little miles.
Yes, do what you want, its your $$. Drive it, enjoy it thats what its all about. I just do not care much for the salesmans on board need to prove out their wares with pure horse pucky.
Mine's got 167,000 on it and I am the second owner, the first owner was into showing horses (an old buddy) and put 150,000 on it mostly pulling 4 horses around the country. When I bought it I asked what "diet" he kept it on aand I left well enough alone... Delo 400. If it "floats your boat" fine but 40K just ain't enough.
FTR Don (first owner) got a new one to replace the one he broke in for me..... too much money, but its his choice, I call him the "Rich rancher".
Mike