2025 Chevy 2025 Duramax Specshop. A forum community dedicated to chevy and gmc duramax diesel owners and enthusiasts. The chevrolet silverado and gmc sierra 3500 hd chassis cab continues to employ the duramax l5p, also found in its pickup models, and therefore receives a horsepower and torque output.

Compare all 2025 chevrolet silverado 1500 trims in one place. The 2025 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!