Yes, it was false.
This is false. Like I said before, due to the special oil the the 6.4L requires and the fact the you have to change that oil about twice as much, the PM and oil change are about the same. How much is your oil change that you have to do every 8,000 miles? My oil change costs me about $100 every 15,000 miles IF I let the dealer do it.
This is also false when you calculate repairs over time . The diesel engine parts do cost more, but they last longer. Yeah, that injector costs more, but it will last longer than even most gaser engines so you would need to buy a new engine before that injector goes out. Our farm truck with about 330k miles finally needed two injectors replaced(we did all six at $220 per injector since the engine was torn down) and that is with a first year 6.0L Powerstroke of all things that was notorious for having bad injectors. I have seen Cummins engines with original injectors with 400,000 miles on the truck.
The diesel engine itself will last longer than a gasoline equivalent and there is no denying that which is why they have garnish a higher resale or trade in on them. Because buyers know that 300,000 miles on a diesel is nothing while you couldn't give away a 300,000 gaser, especially a truck that was used for towing. Yeah it cost you more, but you will get more back when you get rid of it in comparison. Especially the higher the miles are on the trucks.
Although I do find it funny in you jumping into this when it was YOU who complained at me about going off topic in that last thread. Well Mr Skrap there went off topic and I didn't see you say anything to him. Oh wait that is right, he drives a 6.4L so he gets a pass.