2024 Chevy Suburban Diesel Mpg. And those 4wd epa numbers—20 mpg city, 26 mpg highway—might undersell the diesel's efficiency, depending on what kind of driving you do. View detailed gas mileage data for the 2024 chevrolet suburban.

Fuel economy of the 2024 chevrolet suburban. Fuel economy of the 2024 chevrolet suburban 4wd.