The 2021 Chevy Tahoe introduces an all-new fifth generation for the SUV nameplate, with a ground-up overhaul that includes fresh exterior styling, a revamped cabin space, and a new underlying platform, not to mention the option for a new turbo-diesel engine. Now, the EPA has revealed the official fuel economy ratings for 2WD Chevy Tahoe diesel models.
According to the EPA, the 2021 Chevy Tahoe diesel posts 21 mpg in the city, 28 mpg on the highway, and 24 mpg combined, with an estimated annual fuel cost of $1,500.
|Engine||5.3L V8 L84||6.2L V8 L87||3.0L I6 LM2|
|Estimated Annual Fuel Cost||$1,750||$2,450||$1,500|
By comparison, 2021 Chevy Tahoe models with 2WD and the naturally aspirated 5.3L L84 V8 gas engine post 16 mpg in the city, 20 mpg on the highway, and 18 mpg combined, with an estimated annual fuel cost of $1,750. New Tahoe models with 2WD and the naturally aspirated 6.2L L87 V8 post fuel returns of 15 mpg in the city, 20 mpg on the highway, and 17 mpg combined, with an estimated annual fuel cost of $2,450.
Clearly, the new 2021 Chevy Tahoe diesel is the most economical choice of the three engines offered, per the new EPA figures.
As a reminder, the diesel engine in question is the Duramax turbo-diesel 3.0L LM2 I-6 LM2, which features dual overhead cams and direct injection. Output is rated at 277 horsepower at 3,750 rpm and 460 pound-feet of torque at 1,500 rpm.
All three engine options utilize the GM Hydra-Matic 10L80 10-speed automatic transmission and a 3.23 final drive ratio.
As GM Authority exclusively covered back in July, the 2021 Chevy Tahoe diesel is available to order as of this month. The LM2 diesel engine is available on every trim level with the exception of the off-road-oriented Z71 trim, as the Z71’s unique fascia obstructs the diesel engine’s intercooler piping.
We’ll have more info on GM’s latest diesel-powered SUVs posted very soon, so stay tuned. In the meantime, subscribe to GM Authority for more Chevrolet Tahoe news, Chevrolet news, and around-the-clock GM news coverage.