2024 Gmc 2024 Duramax Specs. Choose either a gmc sierra 2500 hd or 3500 hd and learn more about the vehicle specs, trims, and features available. † and an available max towing capacity of up to 36,000 lbs.

All are on extended drains and all sample. 2 of mine run delo 5w40 year round and the newest one i’m trying the ultra low ash delo 600 adf 15w40.