1999 GMC Sierra 1500 MPG

Based on data from 27 vehicles, 1,565 fuel-ups and 393,002 miles of driving, the 1999 GMC Sierra 1500 gets a combined Avg MPG of 14.08 with a 0.15 MPG margin of error.

Below you can see a distribution of the fuel-ups with 66 outliers (4.05%) removed.

Following shows the average MPG of each of the 27 vehicles in the system.

1999 GMC Sierra 1500s For Sale Nearby

  • 1999 Service Truck

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
    Added Aug 2016 • 77 Fuel-ups

    Property of EONI

  • 13.4 Avg MPG
  • Sierra

    1999 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Speed Standard Cab Pickup
    Added Oct 2017 • 14 Fuel-ups

    Property of bhagedorn

  • 14.4 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Jul 2017 • 12 Fuel-ups

    Property of squidhunter

  • 16.0 Avg MPG
  • SilverGMC

    1999 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
    Added Feb 2015 • 13 Fuel-ups

    Property of 80Gator

  • 14.1 Avg MPG
  • Sierra

    1999 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Standard Cab Pickup (2 Door)
    Added Aug 2015 • 9 Fuel-ups

    Property of katjlr

  • 17.9 Avg MPG
  • Truck

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Apr 2017 • 193 Fuel-ups

    Property of Darcie

  • 18.4 Avg MPG
  • sierra 4 door

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
    Added Jun 2011 • 136 Fuel-ups

    Property of Pauly

  • 13.2 Avg MPG
  • GMC

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added May 2017 • 90 Fuel-ups

    Property of seanhouston

  • 13.8 Avg MPG
  • GMC Sierra

    1999 GMC Sierra 1500 GAS V8
    Added Mar 2012 • 85 Fuel-ups

    Property of frescojulio103

  • 11.7 Avg MPG
  • Woody III

    1999 GMC Sierra 1500 SL
    Added Jul 2015 • 22 Fuel-ups

    Property of Data

  • 15.4 Avg MPG
  • GMC Truck

    1999 GMC Sierra 1500 SLT Extended Cab Pickup
    Added Jan 2016 • 32 Fuel-ups

    Property of pierceme

  • 16.4 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Aug 2016 • 9 Fuel-ups

    Property of danielm11

  • 9.4 Avg MPG
  • Sierra Ext 4.8L

    1999 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
    Added Jun 2011 • 33 Fuel-ups

    Property of old450

  • 16.3 Avg MPG
  • 1999 GMC (Blaine)

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Sep 2016 • 163 Fuel-ups

    Property of gkarels

  • 11.3 Avg MPG
  • 1999 Sierra

    1999 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
    Added Oct 2015 • 4 Fuel-ups

    Property of m1000rr6

  • 13.2 Avg MPG
  • GMC Sierra

    1999 GMC Sierra 1500 GAS V8
    Added Nov 2013 • 19 Fuel-ups

    Property of manicjester3

  • 13.1 Avg MPG
  • dads truck

    1999 GMC Sierra 1500 GAS
    Added Dec 2013 • 18 Fuel-ups

    Property of redrod

  • 17.4 Avg MPG
  • GMC

    1999 GMC Sierra 1500 Custom Submodel V8 GAS
    Added Aug 2013 • 78 Fuel-ups

    Property of seanhouston

  • 13.6 Avg MPG
  • ThunderBolt

    1999 GMC Sierra 1500 GAS V8
    Added Apr 2013 • 6 Fuel-ups

    Property of jj3699

  • 15.8 Avg MPG
  • GMC Sierra

    1999 GMC Sierra 1500 GAS V8
    Added Feb 2013 • 20 Fuel-ups

    Property of eddykc03

  • 13.8 Avg MPG

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