How many miles per gallon does a 2010 Chevy Silverado 2500HD get?

The fuel economy of a 2010 Silverado 2500HD depends on engine choice and drivetrain. In general, gas-powered 6.0L V8 models tend to deliver around 12 miles per gallon in the city and 16–18 miles per gallon on the highway, while the Duramax 6.6L diesel models typically run about 15 miles per gallon in the city and up to 21 miles per gallon on the highway. Real-world results vary with load, terrain, and maintenance.

Engine options and how they impact efficiency

These figures reflect common configurations and EPA estimates for the heavy-duty pickup from that year.

• Gasoline-powered 6.0L V8: roughly 12 mpg in city driving and 16–18 mpg on the highway; 2WD tends to be at the higher end of the highway range, while 4WD may drop those numbers modestly.


• Duramax 6.6L Turbo Diesel: roughly 15 mpg in the city and up to 21 mpg on the highway; 4WD configurations typically show a slight decrease in both city and highway ratings.

These are EPA-style estimates and serve as a baseline; actual mileage can vary based on unit configuration, payload, and driving conditions.

What affects real-world mileage for a Silverado 2500HD

Beyond engine choice, several factors influence actual fuel efficiency in daily use.

• Vehicle load and towing: heavier loads and trailers increase engine work and reduce efficiency.


• Terrain and driving style: city stop-and-go driving lowers mpg more than steady highway cruising; aggressive acceleration further reduces it.


• Maintenance and condition: proper tire inflation, clean air filters, and regular tune-ups help sustain fuel economy.


• Drivetrain and axle gearing: 4WD and higher numeric axle ratios typically lower mpg versus 2WD with a lower gearing for highway use.


• Fuel and payload variability: older engines, worn components, or inconsistent fuel quality can affect mileage.

The takeaway is that, while EPA estimates give a baseline, your actual mileage will depend on how you configure and use the truck.

Summary

For a 2010 Chevy Silverado 2500HD, fuel economy varies by engine and drivetrain. Gas models with the 6.0L V8 typically achieve about 12 mpg in the city and 16–18 mpg on the highway, while the Duramax 6.6L diesel models generally run around 15 mpg city and up to 21 mpg highway. Real-world results depend on cargo, towing, driving conditions, and maintenance.

What year to stay away from a Chevy 2500?

Years to generally stay away from a Chevy 2500 include 2003-2006 due to electrical issues and rust, 2014-2017 for transmission, suspension, and HVAC problems, and specific models like the 2007 and 2012 for engine and brake issues, according to sources like CarGurus, MotorBiscuit, and Camera Source. The specific problems vary by model year, but common complaints across these years include transmission failures, electrical gremlins, and rust.
 
Years to avoid

• 2003-2006: These models are frequently cited for electrical problems, build quality issues, rust, and transmission troubles. 
• 2007: This model year is often noted for engine and transmission issues, as well as excessive oil consumption. 
• 2012: Reported to have issues with the engine and transmission, leading to high ownership costs. 
• 2014-2015: These early years of a new generation are known for having numerous recalls and complaints about the transmission, air conditioning, and other electrical systems. 
• 2017: This model year is frequently singled out for significant transmission problems, including rough shifting and poor performance. 

What fuel mileage does a 6.6 l Duramax diesel get?

The 6.6L Duramax engine's MPG varies, but typically ranges from 15-18 MPG for mixed driving and 17-20 MPG for unloaded highway driving. Actual mileage depends heavily on factors like driving conditions, towing, and the specific model year. Some newer models achieve higher efficiency, with a 2025 Silverado HD hitting 20.4 MPG on a controlled highway loop. 
This video shows a fuel economy test of a 2021 Chevy Silverado HD with the 6.6L Duramax engine towing a trailer: 48struckguyjoeYouTube · Jan 15, 2021
Mileage breakdown by driving type: 
This video demonstrates a fuel economy test of a 2024 Chevy Silverado HD Duramax: 57sDaily MotorYouTube · Jun 27, 2023

• Mixed/City: Around 15 MPG or lower, especially with stop-and-go traffic. 
• Highway (unloaded): Typically 17-20 MPG, but can vary with speed. 
• Towing: Expect significantly lower mileage, often in the 10-14 MPG range depending on the load and terrain. 

Factors that influence MPG:

• Towing and load: Hauling heavy loads reduces fuel efficiency. 
• Driving conditions: Hilly terrain or stop-and-go city traffic lowers MPG. 
• Vehicle age and break-in: Newer trucks may improve after an initial break-in period, with some owners reporting increased mileage after a few thousand miles. 
• Other factors: Speed, road conditions, and factors like the truck's emissions system (e.g., temporary DPF regen cycles) can also have an effect. 

You can watch this video to see real-world mileage results for a 2022 GMC Sierra 2500 Duramax: 1mDaily MotorYouTube · Mar 26, 2022

How much horsepower does a 2010 Chevy 2500HD 6.0 have?

The 2010 Chevy 2500HD with the 6.0L V8 gasoline engine produces 360 horsepower and 380 lb-ft of torque. This standard engine was paired with a six-speed automatic transmission.
 

• Horsepower: 360 hp at 5,400 rpm 
• Torque: 380 lb-ft at 4,200 rpm 
• Transmission: 6-speed automatic 
• Other engine option: The 6.0L V8 was not the only engine; there was also a 6.6L Duramax diesel V8 which produced 365 hp and 660 lb-ft of torque. 

How many miles per gallon does a Silverado 2500HD get?

The Chevy 2500 HD's MPG varies by model year and configuration, with many 2024 models getting around 16-18 mpg in the city and 18-21 mpg on the highway, while 2025 models are estimated to get 13-14 mpg city and 17-18 mpg highway. Fuel efficiency depends on factors like the engine (gas vs. diesel), trim level, and driving conditions, such as towing or carrying heavy loads. Official EPA ratings are not provided for heavy-duty trucks.
 
You can watch this video to learn about the 2024 Chevy Silverado HD's MPG: 48sGetty's GarageYouTube · Oct 30, 2025
2024 Chevrolet Silverado 2500 HD 

• Gas Engine:
  • City: 16-18 mpg
  • Highway: 18-21 mpg
• Diesel Engine:
  • City: 16 mpg
  • Highway: 20 mpg 

2025 Chevrolet Silverado 2500 HD

• Estimated MPG:
  • City: 13-14 mpg
  • Highway: 17-18 mpg 

Key factors affecting fuel economy

• Engine: Diesel engines often provide better fuel economy, especially when towing. 
• Driving conditions: Towing a heavy load or driving in stop-and-go traffic will reduce fuel efficiency. 
• Towing: When towing, diesel engines tend to hold their efficiency better than gas engines. 

This video explains the fuel economy of the 2025 Chevrolet Silverado 2500 HD Duramax: 59sAutoMotive InquiriesYouTube · Oct 12, 2025