Based on data from 52 vehicles, 1,719 fuel-ups and 503,631 miles of driving, the 2003 GMC Yukon XL 1500 gets a combined Avg MPG of 13.75 with a 0.15 MPG margin of error.

Any Engine Type 5.3L V8 FLEX (16) 5.3L V8 GAS (15) 6.0L V8 GAS (17) V8 FLEX (1) Any Body Style Sport Utility (19) Any Submodel SLE (13) Denali (17) SLT (20) Other (2)

Below you can see a distribution of the fuel-ups with 32 outliers (1.83%) removed.

Following shows the average MPG of each of the 52 vehicles in the system.

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• Yukon

  2003 GMC Yukon XL 1500 SLT 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Sep 2020 • 146 Fuel-ups

  Property of classic70

• 13.5 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Apr 2025 • 6 Fuel-ups

  Property of Brendyn

• 11.4 Avg MPG

• Rudolph

  2003 GMC Yukon XL 1500 SLT 5.3L V8 FLEX Automatic 4 Speed
  Added Jan 2015 • 224 Fuel-ups

  Property of cjlipps

• 16.4 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Apr 2025 • 66 Fuel-ups

  Property of mikeywil0003

• 10.8 Avg MPG

• Yukon XL

  2003 GMC Yukon XL 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Nov 2024 • 3 Fuel-ups

  Property of MannieC

• 44.4 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Oct 2024 • 30 Fuel-ups

  Property of mvalore

• 12.9 Avg MPG

• Jarl Ballin' Plus

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed Sport Utility
  Added Jan 2025 • 12 Fuel-ups

  Property of DAVe3283

• 11.0 Avg MPG

• 2003 GMC Yukon XL 1500

  2003 GMC Yukon XL 1500 SLT 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Feb 2025 • 66 Fuel-ups

  Property of Benjaguy

• 14.7 Avg MPG

• Bessy: 03 Yukon XL 1500

  2003 GMC Yukon XL 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Aug 2018 • 102 Fuel-ups

  Property of Haxena

• 11.5 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Apr 2024 • 36 Fuel-ups

  Property of burber

• 14.6 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Mar 2024 • 24 Fuel-ups

  Property of jmabrao

• 12.0 Avg MPG

• Sebastian 2.0

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed Sport Utility
  Added Feb 2025 • 7 Fuel-ups

  Property of 77Drives

• 14.8 Avg MPG

• Yukon Denali XL 1500

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Aug 2024 • 16 Fuel-ups

  Property of mikehw17

• 14.9 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 SLT 5.3L V8 FLEX Automatic 4 Speed
  Added Aug 2024 • 10 Fuel-ups

  Property of foodboy767

• 16.1 Avg MPG

• 03 Yukon

  2003 GMC Yukon XL 1500 SLE 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Jan 2020 • 7 Fuel-ups

  Property of Joegreen

• 78.8 Avg MPG

• Yukon XL Denali

  2003 GMC Yukon XL 1500 Denali 6.0L V8 GAS Automatic 4 Speed Sport Utility
  Added Oct 2016 • 105 Fuel-ups

  Property of michaelmiller

• 15.6 Avg MPG

• Yukon

  2003 GMC Yukon XL 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 63 Fuel-ups

  Property of coach8948

• 14.5 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2023 • 25 Fuel-ups

  Property of ttyme19

• 14.4 Avg MPG

• The Yukon

  2003 GMC Yukon XL 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2023 • 23 Fuel-ups

  Property of joe___hill

• 13.6 Avg MPG

• My Yukon XL 1500

  2003 GMC Yukon XL 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Apr 2023 • 3 Fuel-ups

  Property of russ_manda

• 14.0 Avg MPG

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