I have a 2023 GMC Sierra ... freeway this truck gets about 30mpg, Drive 55mph on regular highways and this truck gets almost 40mpg. All around driving for me is about 26mpg. I used to fill up ...

GMC trucks stand out as a "Professional Grade" marque. The workhorse for the GMC brand has been the Sierra full-size pickup truck. In addition to the half-ton Sierra 1500, the 2500HD and 3500HD models ...

Created in 2001, the GMC Sierra 1500HD was created for the work-oriented customer wanting to exploit the full towing and hauling potential of a half-ton truck. Compared to the standard half-ton GMC ...

Before Sierra became a full-size truck model of its own in 1988, the name was used to describe an available trim on other GMC ...

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