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GMC Sierra 1500 HD MPG

18 GMC Sierra 1500 HDs have provided 223 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

Plan and be consistent.

High MPG is helpful but using your head on when and how to d... ...

by ItalianHonda

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