2024 Chevy 6.6 Duramax Mpg. 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. The 2024 silverado 2500 duramax diesel achieved a result of 18 mpg in our testing.
We put it on the denver. For 2024, this burly powerplant sees an increase to 470 hp along with a.