Older guy I used to work with never change the oil in his. He would just keep adding oil, like cheap **** from the Dollar General. Sumbitch knocked like a Jehovhas Witness on crack but to my knowledge it's till runningWeill I traded in my 2004 f150 with 179k miles with the triton that sounded like a diesel since hitting 90k. Did need the cam phasers but I wasn’t about to pay 3k so I figured I’d just drive it till it died. Ran fine but only got about 12mpg. Bought the 2019 f150 4x4 4dr sport on Memorial Day with 11k in incentives and they gave me 4500 for my 2004. New truck average mpg with the coyote is 19mpg. Just turned 70k.