2025 Chevy Duramax 2025 Diesel Fuel Economy. Mpg estimates from drivers like you! The 2025 silverado 2500 duramax diesel achieved a result of 18 mpg in our testing.
Is where chevy wisely focused the bulk of its 2025 silverado hd update energy. From a previous 445 hp at 2,800 rpm, chevrolet engineers have increased the l5pโs power to 470 hp.