2024 6.6 Duramax Fuel Mileage. To get a more accurate estimate of the fuel mileage for your specific vehicle, it would be helpful to check the owner’s manual or reach out to the manufacturer or previous owners who may have firsthand experience with this. Detailed specs and features for the 2024 chevrolet silverado 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain.
Use our handy tool to get estimated annual fuel costs based on your driving habits. Use our handy tool to get estimated annual fuel costs based on your driving habits.