Yahoo Autos 2021 Chevy Tahoe and Suburban diesel EPA fuel economy estimates revealed
One of the major highlights of the redesigned full-size GM SUVs, the 2021 Chevrolet Tahoe and Suburban and the 2021 GMC Yukon and Yukon XL, is the newfound availability of a turbo-diesel engine, a 3.0-liter Duramax inline-six (borrowed from the Silverado/Sierra pickups). Now we have the fuel economy estimates for the new diesel as calculated by the EPA, and as expected they represent a significant improvement over the next-most-efficient engine, the 5.3-liter V8.
The 2021 Chevrolet Tahoe 2WD is 21/28 mpg city/highway and 24 mpg combined. The 4WD Chevrolet Tahoe diesel is 20/26 mpg and 22 mpg combined. That's a big gain over the Tahoe with the 5.3-liter V8, which carries EPA estimates of 16/20 mpg city/highway and 18 mpg combined (2WD or 4WD).
The larger Suburban with 2WD and the diesel engine nets EPA estimates of 21/27 mpg city/highway and 23 mpg combined. Compare that to 16/20 mpg and 18 mpg combined for the Suburban with the 5.3-liter V8.
