2025 Chevy Duramax Mpg Comparison

2025 Chevy Duramax Mpg Comparison. The 2025 silverado 2500 duramax diesel achieved a result of 18 mpg in our testing. For 2025, the silverado 2500 maxes out at 22,430 pounds with a gooseneck hitch.

My gas chevy got about the same mileage empty as the duramax trucks i’ve owned. The truck’s l5p duramax diesel engine received a substantial bump in power and torque thanks to a stout list of upgrades, including a new turbocharger,.