* Engine: The Silverado 2500HD offers several engine choices, each with different fuel efficiency. A gas V8 will get considerably fewer MPG than a diesel.
* Drivetrain: 4x2 (two-wheel drive) models generally get better gas mileage than 4x4 (four-wheel drive) models.
* Towing/Hauling: Towing a heavy load or carrying a significant amount of cargo dramatically reduces fuel economy.
* Driving style: Aggressive driving habits will lower MPG.
* Terrain: Driving in mountainous areas or off-road will reduce fuel economy.
Therefore, I cannot give you a single MPG figure. To find the fuel economy for *your specific* 2023 Chevy Silverado 2500HD configuration, I recommend:
* Checking the sticker on the driver's side doorjamb: This sticker provides the EPA estimated fuel economy for your truck's specific configuration.
* Checking the owner's manual: This manual also lists the EPA estimated fuel economy.
* Using the EPA's FuelEconomy.gov website: You can search for your specific vehicle there to find the official EPA estimates.
Keep in mind that the EPA estimates are just that – estimates. Your real-world fuel economy may vary.