What is the gas mileage on a Chevy Silverado 2500hd diesel?
Typically, the Duramax-powered Silverado 2500HD achieves roughly 15–17 mpg in city driving and about 20–23 mpg on the highway, with a combined rating around 18–20 mpg depending on configuration.
What you’re asking about is the diesel variant’s fuel economy, which varies by model year, drivetrain, cab and bed choices, and how you use the truck—especially when towing or hauling. This article outlines the typical EPA estimates for common configurations and explains the factors that influence real-world mileage.
Typical EPA estimates by configuration
Below are representative figures for current-model-year Silverado 2500HD diesel configurations. Actual results vary by year, option packages, and driving conditions.
- 2WD Crew Cab with Standard Box: approximately 15 mpg city / 21 mpg highway; around 17 mpg combined.
- 4WD Crew Cab with Standard Box: approximately 14 mpg city / 20 mpg highway; around 16 mpg combined.
Note: These numbers reflect common configurations and can differ with different cab/box setups, tire sizes, and payloads. For precise figures, consult the official window sticker or EPA ratings for your exact build.
Factors that influence real-world mileage
Real-world fuel economy is affected by payload, towing weight, terrain, tire choice, and driving style. Diesels typically perform better on highways at steady speeds, but towing heavy loads can significantly reduce mpg. Other influences include air conditioning usage, idle time, and maintenance status (air filters, oil, and fuel system cleanliness).
What drivers should know
If you’re shopping for a Silverado 2500HD diesel, remember that fuel economy is just one aspect of total cost of ownership. Consider how you’ll use the truck—towing, payload, and typical road conditions—and check the exact EPA rating for your specific configuration. Real-world results may differ from the factory estimates, so testing the truck with your typical loads is the best guide.
Summary
The Chevy Silverado 2500HD diesel offers EPA estimates in the mid-teens to low-20s mpg depending on drivetrain and cab/box configuration, with city driving generally lower than highway. Expect roughly 15–17 mpg city and 20–23 mpg highway for common 2WD setups, and slightly lower figures for 4WD variants. Always verify exact numbers for your build and keep in mind that towing and payload will reduce mileage. For the most accurate figure, refer to the model-year window sticker or EPA’s official ratings and compare configurations that match your intended use.
