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GMC Sierra 2500 HD MPG

1,176 GMC Sierra 2500 HDs have provided 27.3 million miles of real world fuel economy & MPG data.
Click here to view all the GMC Sierra 2500 HDs currently participating in our fuel tracking program.

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Tips

driving in mountains and hills

When going up grade slowly press down on the accelerator whi... ...

by StLouisMark

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