Based on data from 45 vehicles, 3,758 fuel-ups and 1,195,008 miles of driving, the 2015 GMC Yukon XL gets a combined Avg MPG of 14.76 with a 0.11 MPG margin of error.

Any Engine Type 5.3L V8 FLEX (16) 6.2L V8 FLEX (26) V8 GAS (2) Any Body Style Sport Utility (15) Any Submodel SLE (6) SLT (10) Denali (27) Other (2)

Below you can see a distribution of the fuel-ups with 127 outliers (3.27%) removed.

Following shows the average MPG of each of the 45 vehicles in the system.

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• My Yukon XL

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added Nov 2020 • 222 Fuel-ups

  Property of drselch

• 17.7 Avg MPG

• 2015 GMC Yukon XL

  2015 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed
  Added May 2022 • 44 Fuel-ups

  Property of blrains706

• 15.2 Avg MPG

• Yukon

  2015 GMC Yukon XL SLE 5.3L V8 FLEX Automatic 6 Speed Sport Utility
  Added Mar 2021 • 90 Fuel-ups

  Property of elid

• 15.2 Avg MPG

• Yukon

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed Sport Utility
  Added Aug 2022 • 390 Fuel-ups

  Property of NailGirl

• 14.3 Avg MPG

• My Yukon XL

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added Apr 2022 • 63 Fuel-ups

  Property of agiwojna

• 12.5 Avg MPG

• Yukon XL “DONNY”

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 6 Speed Sport Utility
  Added Apr 2022 • 52 Fuel-ups

  Property of TylerSc

• 15.0 Avg MPG

• My Yukon XL

  2015 GMC Yukon XL SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Sep 2022 • 15 Fuel-ups

  Property of dirte57

• 14.6 Avg MPG

• My Yukon XL

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added Jul 2021 • 93 Fuel-ups

  Property of Bpospical

• 16.0 Avg MPG

• Yukon XL Denali

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed Sport Utility
  Added Jun 2020 • 145 Fuel-ups

  Property of islandhopper

• 15.6 Avg MPG

• My Yukon XL

  2015 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Feb 2023 • 9 Fuel-ups

  Property of eightydolla

• 14.9 Avg MPG

• Yukon XL

  2015 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Dec 2018 • 103 Fuel-ups

  Property of odsail

• 15.3 Avg MPG

• Moose

  2015 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Aug 2017 • 180 Fuel-ups

  Property of walxalone

• 16.5 Avg MPG

• Stacy's Yukon

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added May 2017 • 329 Fuel-ups

  Property of wiegelsa

• 14.4 Avg MPG

• Yukon XL DENALI

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 6 Speed Sport Utility
  Added Jul 2021 • 40 Fuel-ups

  Property of msjs91011

• 15.0 Avg MPG

• My Yukon XL-Gideon

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added Feb 2023 • 12 Fuel-ups

  Property of KampSprinter

• 15.7 Avg MPG

• GMC Hearse

  2015 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed Sport Utility
  Added Oct 2017 • 203 Fuel-ups

  Property of Jonesjetta

• 16.9 Avg MPG

• Denali

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added Jul 2019 • 105 Fuel-ups

  Property of MikeGes

• 15.1 Avg MPG

• Denali

  2015 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 8 Speed
  Added Aug 2016 • 247 Fuel-ups

  Property of rowallen9501

• 17.2 Avg MPG

• Mystic

  2015 GMC Yukon XL SLE 5.3L V8 FLEX Automatic 6 Speed Sport Utility
  Added Feb 2022 • 6 Fuel-ups

  Property of Max79

• 18.2 Avg MPG

• My Yukon XL

  2015 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Dec 2021 • 52 Fuel-ups

  Property of 2chevys1ford

• 17.2 Avg MPG

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