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    What kind of MPG can I expect?

    I am looking for some insight. I have a 2018 Tahoe with the 5.3. I believe it has a 3.42 rearend but not positive. It has trailer brakes and 4x4 so that is my best guess. I can currently get almost 25 on the HWY and around 18 in town on 275/55/R20 Michelin m/s. I am thinking about getting a 2...

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