2024 Chevy Duramax High Country Mpg. Any faster then that the. The duramax diesel engine and its insane torque is the best thing about this truck.

My gas chevy got about the same mileage empty as the duramax trucks i’ve owned. Official epa estimates predict the zr2 will average 20 mpg in town and 22 mpg on the highway, for a combined rating of 21 mpg.