2024 Gmc Denali Duramax Mpg. Detailed specs and features for the 2024 gmc sierra 3500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine. Come join the discussion about modifications, towing, classifieds,.
Edmunds also has gmc sierra 1500 diesel pricing, mpg, specs, pictures, safety features,. Current truck is a 2014 duramax with the 6 speed.