The 2021 Chevrolet Tahoe Turbo-Diesel, powered by the 277 horsepower 3.0L Duramax inline-six turbo-diesel engine, offers an EPA-estimated 28 highway, 21 city and 24 combined mpg in rear-wheel-drive models, which also have a maximum towing up to 8,200 pounds, and 26 highway, 20 city and 22 combined mpg for four-wheel drive models. The 3.0L Duramax turbo-diesel is available on the LS, LT, RST and Premier trims with an MSRP of $995 over the base 5.3L V-8 gas engine. It is also available in the High Country trim as a $1,500 MSRP decrease over the standard 6.2L V-8 gas engine. The first customer deliveries of the 2021 Tahoe and Suburban with the available 3.0L Duramax turbo-diesel are expected to begin before the end of the year.