2021 Chevrolet Tahoe 3.0L Duramax Offers Class-Leading Fuel-Efficiency

The 2021 Chevrolet Tahoe 3.0L Duramax turbo-diesel is the most fuel-efficient full-size SUV in its class1. Better fuel efficiency supports longer trips in this best-selling nameplate known for its size, capability and cargo. The Chevrolet Tahoe with the available 3.0L Duramax turbo-diesel engine offers an EPA-estimated 28 highway, 21 city and 24 combined mpg in rear-wheel-drive models. EPA-estimated fuel economy for four-wheel drive models is 26 highway, 20 city and 22 combined mpg. This is Chevy’s first diesel inline-six engine for full-size SUVs, and the brand’s first diesel offered in full-size SUVs since 1999. In the Suburban, the 3.0L Duramax offers an EPA estimated 27 highway, 21 city and 23 combined mpg in two-wheel drive models and 26 highway, 20 city and 22 combined mpg in four-wheel drive models.