I drive a 1994 F-250 4x4 turbo diesel idi that I bought new. It has 350K and barely uses oil. Recently I considered buying a new pickup and did alot of research on new diesels. They are crap! The mandates gov has put on diesel motors have ruined them, they are having all sorts of problems and are extremely expensive to repair. I can just imagine what new big rig mandates will do to make them unreliable and expensive to operate. We will all pay the cost. By the way, I am keeping my old rig, they literally don't make em like that anymore.