Gmc Sierra 2024 Diesel Mpg. Those most concerned with fuel efficiency should entertain the optional diesel engine, which is rated up to 23 mpg city and 30 mpg highway. Research the 2023 gmc sierra 1500 diesel with our expert reviews and ratings.
Those most concerned with fuel efficiency should entertain the optional diesel engine, which is rated up to 23 mpg city and 30 mpg highway. Research the 2024 gmc sierra 1500 at cars.com and find specs, pricing, mpg, safety data, photos, videos, reviews and local inventory.
