2020 GMC Yukon XL MPG

Based on data from 13 vehicles, 964 fuel-ups and 357,736 miles of driving, the 2020 GMC Yukon XL gets a combined Avg MPG of 16.07 with a 0.25 MPG margin of error.

Below you can see a distribution of the fuel-ups with 30 outliers (3.02%) removed.

Following shows the average MPG of each of the 13 vehicles in the system.

• My Yukon XL

  2020 GMC Yukon XL SLT 5.3L V8 GAS Automatic 10 Speed
  Added Jul 2020 • 245 Fuel-ups

  Property of chrisrapley

• 14.4 Avg MPG

• Yukon Denali

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed Sport Utility
  Added Aug 2023 • 89 Fuel-ups

  Property of mmoesner

• 20.4 Avg MPG

• My Yukon XL 2020

  2020 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 10 Speed
  Added Aug 2023 • 166 Fuel-ups

  Property of drselch

• 17.8 Avg MPG

• Yukon

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed Sport Utility
  Added Jul 2022 • 96 Fuel-ups

  Property of kevinbushman

• 18.4 Avg MPG

• Baby Beluga

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed Sport Utility
  Added Oct 2024 • 48 Fuel-ups

  Property of JasonFH

• 16.1 Avg MPG

• Abby’s Yukon XL

  2020 GMC Yukon XL SLT 5.3L V8 FLEX Automatic 6 Speed
  Added Mar 2020 • 100 Fuel-ups

  Property of duncains

• 18.0 Avg MPG

• My Yukon XL

  2020 GMC Yukon XL SLT 5.3L V8 GAS Automatic 6 Speed
  Added Dec 2023 • 42 Fuel-ups

  Property of vzaggie08

• 14.3 Avg MPG

• Yukon XL Denali

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed
  Added May 2021 • 9 Fuel-ups

  Property of jsampson

• 11.5 Avg MPG

• 2020 Yukon XL

  2020 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 10 Speed Sport Utility
  Added May 2025 • 166 Fuel-ups

  Property of CheckerBoard

• 20.4 Avg MPG

• James

  2020 GMC Yukon XL Denali 6.2L V8 FLEX Automatic 10 Speed
  Added Apr 2021 • 186 Fuel-ups

  Property of dtaylor469

• 15.2 Avg MPG

• 2020 GMC Yukon XL Denali

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed
  Added Feb 2025 • 9 Fuel-ups

  Property of ax472325

• 13.5 Avg MPG

• 2020 GMC Yukon XL Denali

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed Sport Utility
  Added Jan 2025 • 54 Fuel-ups

  Property of pewterformula

• 15.9 Avg MPG

• My Yukon XL

  2020 GMC Yukon XL Denali 6.2L V8 GAS Automatic 10 Speed
  Added Jan 2022 • 9 Fuel-ups

  Property of peterlyons79

• 16.0 Avg MPG