Based on data from 44 vehicles, 2,002 fuel-ups and 329,784 miles of driving, the 1998 Jeep TJ gets a combined Avg MPG of 14.21 with a 0.13 MPG margin of error.

Any Engine Type 2.5L L4 GAS (9) 4.0L L6 GAS (35) Any Body Style Sport Utility (16) Any Submodel SE (9) Sahara (10) Sport (25)

Below you can see a distribution of the fuel-ups with 76 outliers (3.66%) removed.

Following shows the average MPG of each of the 44 vehicles in the system.

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• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Manual 5 Speed
  Added Aug 2022 • 19 Fuel-ups

  Property of phipps33

• 14.7 Avg MPG

• My TJ

  1998 Jeep TJ SE 2.5L L4 GAS Manual 5 Speed
  Added Mar 2020 • 77 Fuel-ups

  Property of bradini_houdini

• 17.0 Avg MPG

• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Standard 5 Speed
  Added Sep 2016 • 155 Fuel-ups

  Property of smashtorrent

• 13.1 Avg MPG

• Jeep TJ

  1998 Jeep TJ SE 2.5L L4 GAS Standard 5 Speed Sport Utility
  Added Feb 2018 • 161 Fuel-ups

  Property of randyemtp

• 16.6 Avg MPG

• My TJ

  1998 Jeep TJ Sport 4.0L L6 GAS Manual 5 Speed
  Added Oct 2019 • 60 Fuel-ups

  Property of Dean2

• 12.1 Avg MPG

• My TJ

  1998 Jeep TJ SE 2.5L L4 GAS Manual 5 Speed
  Added Sep 2020 • 145 Fuel-ups

  Property of mushdogs

• 16.6 Avg MPG

• DustyRoads

  1998 Jeep TJ Sport 4.0L L6 GAS Manual 5 Speed Sport Utility
  Added Apr 2021 • 49 Fuel-ups

  Property of Randaron

• 13.9 Avg MPG

• My TJ

  1998 Jeep TJ Sport 4.0L L6 GAS Automatic 3 Speed Sport Utility
  Added Sep 2018 • 127 Fuel-ups

  Property of Rotora

• 14.8 Avg MPG

• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Automatic 3 Speed Sport Utility
  Added Oct 2014 • 148 Fuel-ups

  Property of 91loriderhog

• 13.4 Avg MPG

• My TJ

  1998 Jeep TJ Sahara 4.0L L6 GAS Automatic 3 Speed
  Added Nov 2022 • 21 Fuel-ups

  Property of txcrash

• 14.8 Avg MPG

• Jeep TJ

  1998 Jeep TJ Sport 4.0L L6 GAS Standard 5 Speed Sport Utility
  Added Dec 2017 • 109 Fuel-ups

  Property of BJohnston

• 12.7 Avg MPG

• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Standard 5 Speed
  Added Feb 2017 • 112 Fuel-ups

  Property of joshlike

• 12.3 Avg MPG

• KingFisher

  1998 Jeep TJ Sport 4.0L L6 GAS Manual 5 Speed
  Added Dec 2019 • 139 Fuel-ups

  Property of Owl700

• 13.6 Avg MPG

• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Manual 5 Speed Sport Utility
  Added Jul 2022 • 15 Fuel-ups

  Property of Metalheadspey

• 23.1 Avg MPG

• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Sport Utility
  Added Apr 2018 • 45 Fuel-ups

  Property of Loonyjeep

• 13.0 Avg MPG

• TJ

  1998 Jeep TJ Sport 4.0L L6 GAS Manual 5 Speed Sport Utility
  Added May 2021 • 19 Fuel-ups

  Property of jpd

• 12.4 Avg MPG

• My TJ

  1998 Jeep TJ Sahara 4.0L L6 GAS Manual 5 Speed
  Added Jun 2022 • 23 Fuel-ups

  Property of gonzobot1

• 13.6 Avg MPG

• Jeep

  1998 Jeep TJ SE 2.5L L4 GAS Standard 5 Speed Sport Utility
  Added Sep 2016 • 84 Fuel-ups

  Property of fuelee

• 16.9 Avg MPG

• Jeep

  1998 Jeep TJ Sport 4.0L L6 GAS Standard 5 Speed
  Added Mar 2017 • 136 Fuel-ups

  Property of Spack

• 17.8 Avg MPG

• Jeep TJ

  1998 Jeep TJ Sahara 4.0L L6 GAS Automatic 3 Speed
  Added Aug 2018 • 9 Fuel-ups

  Property of Exploder

• 14.8 Avg MPG

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