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What tune and what kind of gas mileage?

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I thought I would ask everybody who has a custom tune, what kind of tune do you have and what kind of gas mileage are you getting?


I have the wait4me tune on the 01 silverado. Tuned for 87 octane, I think it gets around 16 mpg, but that might be because the wife drives it. (hammers gas and slams breaks. The 04 I have a 87/91 tune. It gets around 18.5 in the summer on mainly highway with 87 octane, I am trying 91 octane and havent noticed any difference.

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