2024 Gmc Denali Duramax. Adaptive cruise control with trailering assist, previously standard on the 2024 at4x and denali ultimate trim levels, now comes on the at4 and denali trims as well. Denali ultimate is added, and it adds a new level of luxury over the standard.


2024 Gmc Denali Duramax

Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with mpg. All are on extended drains.

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