Ultimate MPG guide - Check Expected Mileage (Pleas enter your verified mpg info)

Discussion in 'Performance & Fuel' started by Springthing, Apr 12, 2009.

  1. Untouchable

    Untouchable Member 2 Years 100 Posts

    Nope. It's in the 70's today and last week it was in the mid to high 60's.
  2. SurrealOne

    SurrealOne Former Member ROTM Winner 1000 Posts

    :neutral: Got me, then. :neutral:
  3. ChevyFarmKid

    ChevyFarmKid Rockstar

    2003 Silverado 1500 5.3 3.73 gear 285/75/16 duratracs mbrp duals 13.78MPG (50/50)
  4. undertheradar

    undertheradar Rockstar

    2010 Silverado 4x4, 5.3L 6spd Auto 3.08 gears.
    Stock with 265's = AVG 17.6 to 18.1 MPG
    2" RC level kit and 285's = AVG 14.1 - 16.5 MPG.
    It's normally around 15.5 and I drive with a light foot. I have found anything over 60 mph and the gas mileage drops big time!!!
    Next item is the H/T speedo cali. Oh and these are based on 70% highway
  5. Rocketmanh5

    Rocketmanh5 Rockstar 100 Posts

    2009 Silverado 5.3, Z71, leveled, 285-65-18's. Catback exhaust, decent air filter no intake though. city(small town 45mph):13mpg's stop and go.
    Highway 60-75mph driving like a sensible person not using cruise in the hills and rolling on and off throttle to coast up hills(not lying here):17-21mpg's.
    Your right foot is the biggest mpg factor, no matter how many upgrades and programmers your foot controls it all!
  6. CJ2012

    CJ2012 New Member

    99 silverado 5.3 with 33s (18/21) city highway with a bully dog programmer
  7. Coach24

    Coach24 Rockstar 3 Years 5000 Posts

    2010 Silverado 5.3 w/3.73 16/18
  8. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    1998 Suburban 1500 2wd 219,500 miles
    12-13 mpg pure city short trips
    21 mpg hy on long pure hy trips-3000 mile roundtrips-averaging 60 mph- CC set to 59-67mph-obey speed limits- road work, cities, towns lower averare speed to 60 mph.
    Great mpg for such a huge comfortable vehicle
  9. AnimalYates

    AnimalYates Rockstar 3 Years 100 Posts

    09 Sierra 4x4 5.3, leveled with 275/55/20 wheels and a flowmaster SI/DO exhaust. I get 14.5-15.1 City (depends how heavy my foot is). I drove nearly exclusively in stop and go small town conditions. I'm not sure what highway mileage is since I never take trips over 15 miles. Not too horrible for such a bulky aggressive vehicle.
  10. Skippy

    Skippy Member 2 Years 100 Posts

    2006 Chevy Silverado Vortex Max 6.0 (LQ9 engine). Performance tune for 89 octane, cat-back exaust, and CAI. 14.2 Stop and go (less than 5 miles per trip, LOTS of stop and go), 15.1 City Driving (80/20 split) 18.2 Highway (20/80 split) with 65-75 Speed limits.

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