I’m at 30,000 on mine. The engine is noticeably stronger than the old 6.0, tows great, and gets slightly better mileage than the 6.0. That being said, I’m scheduled for an oil consumption test this week. It has gone through more oil lately than I think it should, and GM has a protocol to test for that. It may just be the nature of a DI gas engine, I don’t know.
