2025 Chevy Duramax 2025 Diesel Mpg. โ 28 to 29 mpg at 70 to 75 if i do 80 it will drop to 26. The official epa fuel economy ratings were.
We take a trip in the 2025 chevy silverado hd to see how it drives and the mpg. Looking at a new 2025 at4 and just curious if the 10 speed transmission helps with mpg.
