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  1. #11
    Sr. Apprentice goodie's Avatar
    Join Date
    Jan 2009
    Midland, Tx


    I have an '06 sierra WT reg cab 4.8L V8 and it gets around 16-18 mix highway/city....about half of my driving is highway to work and back everyday and then i drive around town alot as well so its not too bad and I dont have the lightest foot so they do pretty good....only modification i have done so far is a glasspack with a turn down everything else is stock.
    2006 GMC Sierra 1500 4.8L V8
    1995 Trams Am 5.7L V8
    1988 Thunderbird BUILT 2.3L 4-CYL turbo
    2004 Mustang GT 4.6L V8

  2. #12


    i have a 5.3 v8, im getting 12ish(little more little less) but its mainly because i drive around town and a little but heavy on the gas. but i just got a K&N intake so im gonna drive like grandma and see how it effects the millage along with the intake add.
    2000 Chevy Silverado 1500 5.3L Z71 - 4x4

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