Gmc Denali 2024 Diesel Mpg. Detailed specs and features for the 2024 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,. Official fuel economy figures put the 2024 gmc sierra 1500 denali ultimate at 15 mpg (16.0 l/100 km) city and 19 mpg (12.1 l/100 km) highway.
Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with mpg. We clocked it at a respectable 8.0 seconds to 60 mph and 16.2 seconds through the.