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GMC Sierra 3500 HD MPG

397 GMC Sierra 3500 HDs have provided 9.6 million miles of real world fuel economy & MPG data.
Click here to view all the GMC Sierra 3500 HDs currently participating in our fuel tracking program.

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Tips

Freeway / Help Truckers Pass Easier

On the freeway when trucks pull out to pass on my left, if t... ...

by ChewChewTrain

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