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GMC Sierra 3500 HD MPG

141 GMC Sierra 3500 HDs have provided 2.7 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.

GMC Sierra 3500 HDs For Sale Nearby

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Tips

Get in top gear for best fuel efficiency

Your vehicle runs most efficiently when in its top gear. The... ...

by palebeachbum

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