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How many miles per gallon does a 2020 Chevy 2500HD diesel get?

The 2020 Chevy 2500HD diesel model is capable of achieving impressive fuel efficiency, with an estimated 17 miles per gallon (mpg) in the city and 23 mpg on the highway. This makes the 2500HD diesel one of the more fuel-efficient heavy-duty pickup trucks on the market.


Detailed Fuel Economy Breakdown


The 2020 Chevy 2500HD diesel is powered by a 6.6-liter Duramax turbo-diesel V8 engine, which produces 445 horsepower and 910 lb-ft of torque. This engine is paired with a 10-speed Allison automatic transmission, which helps optimize fuel efficiency.


According to the Environmental Protection Agency (EPA) estimates, the 2500HD diesel achieves the following fuel economy ratings:



  • City: 17 mpg

  • Highway: 23 mpg

  • Combined: 19 mpg


These figures are impressive for a heavy-duty truck, especially when compared to the gas-powered 2500HD models, which have lower fuel economy ratings. The diesel engine's superior torque and efficiency contribute to its better fuel economy performance.


Factors Affecting Fuel Economy


It's important to note that actual fuel economy may vary depending on several factors, including driving conditions, driving style, payload, and towing capacity. Drivers who frequently tow heavy loads or operate the truck in hilly terrain may see lower fuel economy than the EPA estimates.


Additionally, proper maintenance, such as regular oil changes and tire rotations, can help maximize the 2500HD diesel's fuel efficiency over time.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.