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1999 GMC Sierra 1500 MPG

Based on data from 50 vehicles, 2,452 fuel-ups and 639,881 miles of driving, the 1999 GMC Sierra 1500 gets a combined Avg MPG of 13.77 with a 0.13 MPG margin of error.

Below you can see a distribution of the fuel-ups with 34 outliers (1.37%) removed.

Following shows the average MPG of each of the 50 vehicles in the system.

1999 GMC Sierra 1500s For Sale Nearby

  • My Sierra 1500

    1999 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Speed
    Added Oct 2022 • 38 Fuel-ups

    Property of gnatsumder

  • 12.1 Avg MPG
  • ‘99 Sierra

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Nov 2021 • 63 Fuel-ups

    Property of keith_284

  • 11.5 Avg MPG
  • 99 Sierra

    1999 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Speed Standard Cab Pickup
    Added Oct 2017 • 159 Fuel-ups

    Property of bhagedorn

  • 11.7 Avg MPG
  • Sierra

    1999 GMC Sierra 1500 SL 4.3L V6 GAS Automatic 4 Standard Cab Pickup (2 Door)
    Added Aug 2015 • 25 Fuel-ups

    Property of katjlr

  • 18.5 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Jul 2019 • 25 Fuel-ups

    Property of hoffajd

  • 16.3 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Feb 2018 • 154 Fuel-ups

    Property of clintmccoy

  • 15.6 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
    Added Jul 2022 • 11 Fuel-ups

    Property of connor7mvl

  • 14.6 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 4.8L V8 GAS Manual 5 Speed
    Added Aug 2023 • 5 Fuel-ups

    Property of cohenkoch1

  • 15.5 Avg MPG
  • Walter Beard

    1999 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
    Added Apr 2018 • 40 Fuel-ups

    Property of roguemale

  • 13.9 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SL 4.3L V6 GAS Manual 5 Speed
    Added Jan 2022 • 85 Fuel-ups

    Property of Bridewell1

  • 11.4 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SL 5.3L V8 GAS Automatic 4 Speed
    Added Feb 2023 • 7 Fuel-ups

    Property of MavJ

  • 14.3 Avg MPG
  • Grey

    1999 GMC Sierra 1500 SLE 4.8L V8 GAS Manual 5 Speed Standard Cab Pickup
    Added Dec 2022 • 6 Fuel-ups

    Property of Tommychu

  • 11.3 Avg MPG
  • 99 Shortbed

    1999 GMC Sierra 1500 SLE 4.3L V6 GAS Automatic 4 Speed Standard Cab Pickup
    Added Sep 2022 • 3 Fuel-ups

    Property of IFIXEM2

  • 16.0 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
    Added Aug 2022 • 3 Fuel-ups

    Property of djlamm

  • 13.3 Avg MPG
  • Plow Truck

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Standard Cab Pickup
    Added Jul 2020 • 10 Fuel-ups

    Property of drconnelly85

  • 12.8 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Apr 2022 • 10 Fuel-ups

    Property of aretz94

  • 15.0 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
    Added Nov 2021 • 10 Fuel-ups

    Property of joebro28

  • 14.8 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added Feb 2020 • 58 Fuel-ups

    Property of ChadButtke

  • 13.3 Avg MPG
  • Truck

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Extended Cab Pickup
    Added Jan 2020 • 35 Fuel-ups

    Property of EY44

  • 15.9 Avg MPG
  • My Sierra 1500

    1999 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
    Added May 2019 • 7 Fuel-ups

    Property of 405g

  • 14.8 Avg MPG

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