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Thread: Gas mileage!!

  1. #1

    Exclamation Gas mileage!!

    right now im getttin bout 14.5 mpg. is that normal? anyone else gettin that? i do have a heavy foot tho. but my mpg has actually increased from 11.0 just by airing up my tires from about 35 psi to the reccomended 45. anyone kno of some simple tricks and maybe a few additives or something other than a programmer to help out with the mpg.

    2006 silverado z71
    295-70-R17 nitto trail grapplers
    flowmaster 40 series dumped
    2'' rough country leveling kit
    k&n CAI
    throttle body spacer
    De-badged
    15'' kicker cvr & 2 10'' kicker cvr /w 1800 watt kenwood amp
    7'' jvc kw avx810 double din
    diablosport predator

  2. #2

    Default

    this is a great write up and i hope it helps you out:

    http://www.gmtruckclub.com/forum/sho...hlight=mileage

    2007 Silverado Crew Cab
    5.3 L Vortec V8
    LT1 Package
    Driver Information Center (from gmpartsclub.com)
    Volant Cold Air Intake
    6000k HID DDMTuning Kit
    LED tailgate bar 3rd brake light
    LED lights for foot wells
    LED Side Bars
    LED Headlight Accents
    Husky Mud Guards

  3. #3
    Legend 2ToNe04's Avatar
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    Apr 2009
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    Fresno California
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    Default

    thats normal for a 5.3

    2004 4.8| Custom Paint| Tint| De-badged| Shaved Tailgate| Rollpan| Smoked Tails| Color Matched| Lowered 5/8| Suede Interior| Color Matched Interior| Indash & TVs| Mids-Lows & 2 12" CVRs| 500 & 1100 Interfires| Soundeadener| Outlaw CAI| Magnaflow|
    Future Mods: 6.0 LQ4/9| Bags|

  4. #4

    Default

    oh and i have a 07 nnbs with the 5.3 and i usually get 16.5 mpg. i usually try and coast as much as i can and accelerate slow. i do this so when im in the mood to step on it i know ive tried to salvage the mileage the best i can.

    2007 Silverado Crew Cab
    5.3 L Vortec V8
    LT1 Package
    Driver Information Center (from gmpartsclub.com)
    Volant Cold Air Intake
    6000k HID DDMTuning Kit
    LED tailgate bar 3rd brake light
    LED lights for foot wells
    LED Side Bars
    LED Headlight Accents
    Husky Mud Guards

  5. #5

    Default

    haha i get 11.5 when i'm being efficient. Just accelerate slower
    Michael, 17, CA

    2005 Silverado - See my garage for my mod list
    :great:

  6. #6
    Sr. Mechanic
    Henchman's Avatar
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    Dec 2008
    Location
    Centralia, MO
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    Default

    Heavy foot will do it. I went on a trip to Texas this year from Missouri and I can say that I got reasonably good gas mileage. We usually take my wife's 06 Impala which gets about 29 to 30 miles a gallon. I wanted to see what my truck could get on a long trip. I averaged about 20 - 21 miles a gallon. But the way we went, through Oklahoma, it was fairly flat so crusie control was set and the way we went. Otherwise, according to my information center, since the life of my truck I'm averaging a little above 15 miles a gallon. That's taking the miles on my truck and dividing them by the gallons I have burned. It's not totally accurate as I pull a 29 foot camper a few time which I only got 9 when I did that. This is the price we pay for a V8! I posted a thread about this in the Fuela and Performance topic so we could all get an idea of how everyone's fuel performance is doing...mainly for everyone that has an information center because it's easier to track.
    2007 Chevy Silverado
    5.3L Vortec V8
    Black Crewcab
    Chrome tow hooks
    Chrome side view mirror caps
    Stainless steel GM tie down hooks
    Flowmaster turbo with Silverline tips (Dual Exhaust)
    Back Wheel house liner
    Chrome door handles
    Chrome Chevy bowties front and back

  7. #7
    Legend s5belford's Avatar
    Join Date
    Apr 2009
    Location
    Kalamazoo Michigan
    Posts
    1,456

    Default

    I normally get about that, sometimes a little better, but I do a lot of city driving and its hard not to get mad and step on the gas more often than not.


    S.BELFORD

    2009 Silverado LT1: All Star Edition
    5.3 Liter V8 4x4

    Factory:
    Locking Rear Differential
    3.73 Rear Axle
    Fog Lamps
    Factory Remote Start
    Locking Tailgate
    20" Wheels

    Aftermarket:
    Rear Wheel House Liners
    Molded Mud Flaps
    Stainless Nurf Bars
    Driver Information Center
    20% Tinted Windows
    Low Profile Diamond Plate Tool Box
    GM Bed Liner
    Silver Birch Metallic Mirror Covers
    Silver Birch Metallic Vent Visors
    Flowmaster Super 40 (knock off)
    20" Wheels
    Bed Rail Protectors
    Extang Tonneau Cover

  8. #8

    Default 1998 surburban

    I get 21 mpg on the interstate sometimes better

  9. #9

    Default

    I get about 22 on the highway on average. This is exactly why I opted for the small v8. I just couldn't bring myself to buy a silverado with a v6. just couldn't do it...

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