2024 Fuel Mileage 6.6 Duramax Diesel. 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! 403 in 3, 6599 cm 3 power:

It’s also likely to improve the big truck’s fuel mileage. Going next week to order my truck, and i’m seriously torn on which to get.