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GMC Sierra 1500 HD MPG

17 GMC Sierra 1500 HDs have provided 185 thousand miles of real world fuel economy & MPG data.
Click here to view all the GMC Sierra 1500 HDs currently participating in our fuel tracking program.

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Tips

Tire pressure and gas mileage

It is important to watch how your tires are wearing. If the ... ...

by TNflash

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