Chevy Duramax Diesel 2025. For 2025, this burly powerplant sees an increase to. The duramax diesel engine not only offers the highest torque available in chevy’s silverado lineup but also the best fuel economy.
Looking at a new 2025 at4 and just curious if the 10 speed transmission helps with mpg. Our advanced and affordable duramax® diesel engines are designed to take the refinement and capability of chevy trucks and suvs to the next level.