I recently bought a 2010 chev. silverado 4x4 with the 4.8 V-8. the gas mileage is terrible. I traded a 2003 GMC siera 4x4 with the 5.3 and it was getting 2 to 3mpg better. Is there anything I can do to help my mileage?
Greg_L, There are many factors that go into the gas mileage. You can always email us at email@example.com for more information. Erica Tiffany GM Customer Care
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