Based on data from 219 vehicles, 17,642 fuel-ups and 4,499,322 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 (158) 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 (19) Willys (20) Sport S (34) Mojave (48) Rubicon (76)

Below you can see a distribution of the fuel-ups with 713 outliers (3.88%) removed.

Following shows the average MPG of each of the 219 vehicles in the system.

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• Gladiator

  2021 Jeep Gladiator Willys 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Dec 2023 • 88 Fuel-ups

  Property of lowjo

• 15.7 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

• Gladiator

  2021 Jeep Gladiator Rubicon 3.0L V6 DIESEL Automatic 8 Speed Crew Cab Pickup
  Added Oct 2020 • 170 Fuel-ups

  Property of kclendaniel

• 23.4 Avg MPG

• My Gladiator

  2021 Jeep Gladiator High Altitude 3.6L V6 GAS Automatic 8 Speed
  Added Jan 2021 • 124 Fuel-ups

  Property of annaherod

• 16.7 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 Aug 2021 • 131 Fuel-ups

  Property of AJBolian

• 14.2 Avg MPG

• My Gladiator

  2021 Jeep Gladiator High Altitude 3.0L V6 DIESEL Automatic 8 Speed
  Added Feb 2024 • 46 Fuel-ups

  Property of rvbberglves

• 21.0 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Overland 3.6L V6 GAS Automatic 8 Speed
  Added Jan 2022 • 226 Fuel-ups

  Property of brethlake2000

• 18.0 Avg MPG

• Gladiator

  2021 Jeep Gladiator Sport S 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Dec 2020 • 173 Fuel-ups

  Property of eyekode

• 16.3 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

• My Gladiator

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed
  Added Jul 2021 • 99 Fuel-ups

  Property of jmburgess5

• 14.8 Avg MPG

• Gladiator

  2021 Jeep Gladiator Rubicon 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Jun 2023 • 33 Fuel-ups

  Property of synlubega

• 16.9 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

• Mojo

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Sep 2021 • 248 Fuel-ups

  Property of advRalphie

• 15.8 Avg MPG

• Odie the Gladiator

  2021 Jeep Gladiator Willys 3.6L V6 GAS Automatic 8 Speed
  Added Mar 2022 • 141 Fuel-ups

  Property of Nar165

• 18.2 Avg MPG

• My Gladiator

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed
  Added Jul 2024 • 36 Fuel-ups

  Property of beisemann

• 15.6 Avg MPG

• Big Red

  2021 Jeep Gladiator Overland 3.6L V6 GAS Automatic 8 Speed Crew Cab Pickup
  Added Aug 2021 • 83 Fuel-ups

  Property of jcrogesr87

• 18.2 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

• My Gladiator

  2021 Jeep Gladiator Mojave 3.6L V6 GAS Automatic 8 Speed
  Added Dec 2021 • 160 Fuel-ups

  Property of Dadiator21

• 14.6 Avg MPG

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