2024 Gmc At4 2024 Diesel Engine. Just purchased a 2024 sierra 1500 at4 with the 3.0 diesel and l was really enjoying it until i got to 67 miles on odometer and then the dic said “reduced acceleration drive with care” and. It averages 5 or so better mpg for my usage and setup.

This available engine has the serious power you need for big jobs or big fun. Consumer guide recently spent a week behind the wheel of a 2024 gmc at4x with the standard diesel engine in sterling metallic, and equipped with the aev edition package.