2024 6.6 Duramax Problems. More info is leaking out of chevrolet about the coming 2024 silverado hd models. 2024 gmc sierra 2500hd at4 duramax pov test drive & review.

300,000 miles is high mileage for a 6.6 duramax, but they can go much further if taken care of. I ordered a 2024 denali and now i’m worried.