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GMC Sierra 2500 HD MPG

532 GMC Sierra 2500 HDs have provided 8.9 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

Park with your windshield twards the sun in Winter

In a wintery climate you can lessen your warmup time and win... ...

by Terry_P

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