2025 Chevy Silverado 2025 Duramax Diesel Specs. Detailed specs and features for the 2025 chevrolet silverado 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain. More power and torque chevrolet has made big improvements to the 2025 silverado hd 6.6 duramax turbo diesel.
The duramax diesel engine is rated at 20 mpg city, 22 mpg highway, and 21 mpg in combined driving. Tip into the throttle and the engine responds with.