I have a 2022 with the 6.2, changed the oil every 4500 miles, at 27000 the motor blew a 1000ilesnfrom home while on vacation. Lifters went, dealership replaced the lifters in both banks, the tech at the dealer went to test drive after the repair and the mains blew out 2 miles from the dealership. Didn't have the truck for a month, ( had to wait for a motor for replacement, and there were other vehicles sitting there ahead of me, waiting for the same thing ). GM was useless, the dealership was great, but GM was horrible. Lost 4 days of vacation, my case worker was horrible, and GM was kind enough to use a remanufactured motor, didn't replace with a new one, and didn't offer to extend warranty on it. So it has the remainder of the original motors warranty, and from reading other posts I may have the same issue again.