Based on data from 113 vehicles, 8,265 fuel-ups and 2,543,987 miles of driving, the 2003 Chevrolet Suburban 1500 gets a combined Avg MPG of 13.56 with a 0.05 MPG margin of error.

Any Engine Type 5.3L V8 FLEX (41) 5.3L V8 GAS (50) V8 FLEX (3) V8 GAS (8) Any Body Style Wagon (1) Sport Utility (36) Any Submodel Base (7) Z71 (11) LS (27) LT (56) Other (12)

Below you can see a distribution of the fuel-ups with 773 outliers (8.55%) removed.

Following shows the average MPG of each of the 113 vehicles in the system.

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• My Suburban 1500

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed
  Added Jan 2023 • 3 Fuel-ups

  Property of jboykin

• 13.8 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 Z71
  Added Jan 2019 • 12 Fuel-ups

  Property of raydar86

• 14.3 Avg MPG

• 2003 White Suburban 1500

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2017 • 148 Fuel-ups

  Property of stanfuger

• 15.0 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2022 • 32 Fuel-ups

  Property of GotxYa

• 11.8 Avg MPG

• 03 Suburban

  2003 Chevrolet Suburban 1500 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Jan 2022 • 7 Fuel-ups

  Property of JFC2003

• 12.2 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Dec 2018 • 135 Fuel-ups

  Property of dougreevesjr

• 12.4 Avg MPG

• Beast

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2018 • 55 Fuel-ups

  Property of tinfox

• 10.2 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed
  Added Aug 2016 • 354 Fuel-ups

  Property of thunderdan1996

• 14.5 Avg MPG

• SUBURBAN

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Oct 2017 • 236 Fuel-ups

  Property of mwsheriff

• 12.7 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added May 2017 • 204 Fuel-ups

  Property of ljolivo

• 13.7 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed
  Added Jan 2020 • 65 Fuel-ups

  Property of Andrewscarrecords

• 14.1 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Sep 2023 • 82 Fuel-ups

  Property of swearingen

• 13.0 Avg MPG

• Dongpa

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed
  Added Nov 2019 • 68 Fuel-ups

  Property of cng4life

• 14.5 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed
  Added Nov 2019 • 6 Fuel-ups

  Property of Mgutierrez

• 14.0 Avg MPG

• Sold - 2003 Suburban

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added May 2016 • 310 Fuel-ups

  Property of peteelton

• 13.4 Avg MPG

• 2003 Chevrolet Suburban 1500

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Jun 2013 • 196 Fuel-ups

  Property of NitroAlltrac

• 14.3 Avg MPG

• Grandpa burb

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Apr 2019 • 35 Fuel-ups

  Property of mxt161

• 14.9 Avg MPG

• Burban

  2003 Chevrolet Suburban 1500 GAS V8
  Added Oct 2011 • 233 Fuel-ups

  Property of j0shu4

• 14.9 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Apr 2021 • 70 Fuel-ups

  Property of andreyanniello

• 15.5 Avg MPG

• Burban

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed
  Added Feb 2018 • 231 Fuel-ups

  Property of MrsHemcrow

• 14.3 Avg MPG

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