GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 9 of 9

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
    15'' kicker cvr & 2 10'' kicker cvr /w 1800 watt kenwood amp
    7'' jvc kw avx810 double din
    diablosport predator

  2. #2


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

    2007 Silverado Crew Cab
    5.3 L Vortec V8
    LT1 Package
    Driver Information Center (from
    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
    Join Date
    Apr 2009
    Fresno California
    Blog Entries


    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


    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.

  5. #5


    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

  6. #6
    Sr. Mechanic
    Henchman's Avatar
    Join Date
    Dec 2008
    Centralia, MO
    Blog Entries


    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
    Kalamazoo Michigan


    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.


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

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

    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


    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...

Similar Threads

  1. 6.0L gas mileage
    By whiteavalanche in forum Performance & Fuel
    Replies: 6
    Last: 06-06-2010, 03:14 PM
  2. Gas Mileage - How to get the best
    By ChevyFan in forum Performance & Fuel
    Replies: 7
    Last: 10-27-2009, 06:15 PM
  3. gas mileage
    By robsnyder22 in forum Member Introductions
    Replies: 6
    Last: 10-04-2009, 11:35 PM
  4. Gas mileage
    By common dude in forum General Chevy & GM Tech Questions
    Replies: 9
    Last: 01-28-2009, 09:43 PM
  5. 6.0L gas mileage
    By ChevyFan in forum Chevy Avalanche Forum (Escalade EXT)
    Replies: 0
    Last: 06-17-2007, 09:52 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts