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GMC Sierra 1500 HD MPG

31 GMC Sierra 1500 HDs have provided 626 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

How I got 54.65mpg on the Freeway

I recently got 54.59mpg on my trip from Oakland to Los Angel... ...

by ChewChewTrain

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