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1999 GMC Sierra 2500 MPG

Based on data from 3 vehicles, 21 fuel-ups and 4,737 miles of driving, the 1999 GMC Sierra 2500 gets a combined Avg MPG of 11.43 with a 1.29 MPG margin of error.

Below you can see a distribution of the fuel-ups with 0 outliers (0.00%) removed.

Following shows the average MPG of each of the 3 vehicles in the system.

1999 GMC Sierra 2500s For Sale Nearby

  • Clyde

    1999 GMC Sierra 2500 SLT 5.3L V8 GAS Automatic 4 Speed
    Added Sep 2017 • 16 Fuel-ups

    Property of cmurph314

  • 11.0 Avg MPG
  • My Sierra 2500

    1999 GMC Sierra 2500 SL 6.0L V8 GAS Automatic 4 Speed
    Added Jul 2017 • 4 Fuel-ups

    Property of chevyguy99

  • 13.9 Avg MPG
  • GMC 2500 6.0

    1999 GMC Sierra 2500 GAS V8
    Added Sep 2012 • 6 Fuel-ups

    Property of Radiantautos

  • 13.6 Avg MPG

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Tips

Find the sweet spot of needed throttle pressure.

When traveling around highway speeds note your throttle inpu... ...

by Lokis_Tyro

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