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tbone7213

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About tbone7213

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  1. Alright guys help me out here. I have an 04 GMC Sierra 2500HD, Ext cab, 4wd,285 tires, 6.0/4.10 and I am getting 10-12 mpg. I know they don't get good but I was hoping for 14. I am not what I would consider a lead foot, so what can I do? I don't want to spend a ton of money, before I do that I will just trade it in on a new 5.3. Thanks in advance.
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