Based on data from 220 vehicles, 17,731 fuel-ups and 4,521,973 miles of driving, the 2021 Jeep Gladiator gets a combined Avg MPG of 17.09 with a 0.06 MPG margin of error.

Any Engine Type 3.0L V6 DIESEL (57) 3.6L V6 GAS (159) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (75) Any Submodel Altitude (1) Texas Trail (1) 80th Anniversary (3) Willys Sport (3) High Altitude (4) 1.5 RS CVT Honda SENSING (10) Overland (20) Willys (20) Sport S (34) Mojave (48) Rubicon (76)

Below you can see a distribution of the fuel-ups with 717 outliers (3.89%) removed.

Following shows the average MPG of each of the 220 vehicles in the system.

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• My Gladiator

  2021 Jeep Gladiator 1.5 RS CVT Honda SENSING 3.6L V6 GAS Automatic 8 Speed
  Added Oct 2021 • 188 Fuel-ups

  Property of raf1866

• 17.3 Avg MPG

• Jeep Gladiator

  2021 Jeep Gladiator Rubicon 3.0L V6 DIESEL Automatic 8 Speed Crew Cab Pickup
  Added Feb 2021 • 419 Fuel-ups

  Property of kszys

• 23.2 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Overland 3.6L V6 GAS Automatic 8 Speed
  Added Mar 2025 • 15 Fuel-ups

  Property of k9mcm

• 20.6 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Rubicon 3.6L V6 GAS Automatic 8 Speed
  Added Mar 2023 • 113 Fuel-ups

  Property of jav_eee

• 15.0 Avg MPG

• Jeep Gladiator

  2021 Jeep Gladiator Willys 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Aug 2021 • 74 Fuel-ups

  Property of NoahI

• 16.1 Avg MPG

• Max

  2021 Jeep Gladiator Sport S 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Jun 2021 • 169 Fuel-ups

  Property of curtdennis

• 15.7 Avg MPG

• MoMo

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed
  Added Aug 2021 • 44 Fuel-ups

  Property of Scubaca

• 15.2 Avg MPG

• Gladiator

  2021 Jeep Gladiator Rubicon 3.0L V6 DIESEL Automatic 8 Speed Crew Cab Pickup
  Added Feb 2025 • 5 Fuel-ups

  Property of Speedrocket

• 20.5 Avg MPG

• Cricket (Gladiator)

  2021 Jeep Gladiator Rubicon 3.6L V6 GAS Automatic 8 Speed
  Added Dec 2021 • 84 Fuel-ups

  Property of macpug

• 13.2 Avg MPG

• Jeep Gladiator

  2021 Jeep Gladiator Sport S 3.0L V6 DIESEL Automatic 8 Speed Crew Cab Pickup
  Added Feb 2025 • 6 Fuel-ups

  Property of jeepster21

• 21.8 Avg MPG

• Gladiator

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 9 Speed Crew Cab Pickup
  Added Mar 2021 • 190 Fuel-ups

  Property of yawnson

• 15.5 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed
  Added Apr 2024 • 4 Fuel-ups

  Property of cowboykarry

• 15.4 Avg MPG

• Gladiator

  2021 Jeep Gladiator Overland 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Mar 2021 • 59 Fuel-ups

  Property of evanslmtd

• 16.5 Avg MPG

• JEEP

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed
  Added Sep 2021 • 118 Fuel-ups

  Property of bakgatdoc

• 15.3 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Sport S 3.6L V6 GAS Automatic 8 Speed
  Added Jun 2021 • 332 Fuel-ups

  Property of mando21

• 15.8 Avg MPG

• Jane's Jeep

  2021 Jeep Gladiator Rubicon 3.0L V6 DIESEL Automatic Dual Clutch 8 Speed Crew Cab Pickup
  Added Mar 2024 • 129 Fuel-ups

  Property of RoJane421

• 23.0 Avg MPG

• Blueberry

  2021 Jeep Gladiator Rubicon 3.0L V6 DIESEL Automatic 8 Speed Crew Cab Pickup
  Added Sep 2023 • 52 Fuel-ups

  Property of marcsnyder05

• 16.1 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Willys
  Added Dec 2020 • 274 Fuel-ups

  Property of DakotaDax

• 18.5 Avg MPG

• Jeep Gladiator

  2021 Jeep Gladiator Overland 3.6L V6 GAS Automatic 8 Speed
  Added Sep 2021 • 100 Fuel-ups

  Property of steveorama

• 17.2 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Rubicon 3.0L V6 DIESEL Automatic 8 Speed
  Added May 2021 • 142 Fuel-ups

  Property of thoort

• 17.1 Avg MPG

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