2024 Duramax Fuel Mileage Comparison Chart. Shopping for a diesel pickup truck and curious which model offers the best fuel mileage? The 2024 chevy silverado zr2’s duramax diesel engine has proven efficient, but we weren’t ready for its astonishing best tank of 34 mpg with 826 miles of range!

The 2024 silverado 2500 duramax diesel achieved a result of 18 mpg in our testing. Unless diesel fuel is ridiculously expensive or hard to come by where you are, the duramax version of the new ‘24 silverado 1500 zr2 is the one to get.