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GMC Sierra 1500 MPG

2,355 GMC Sierra 1500s have provided 46.4 million miles of real world fuel economy & MPG data.
Click here to view all the GMC Sierra 1500s currently participating in our fuel tracking program.

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Gas additive for 10-20% better mileage

I bought a 2008 Prius new. It now has 180,000 kms. on it and... ...

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