Based on data from 115 vehicles, 8,386 fuel-ups and 2,579,962 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 (42) 5.3L V8 GAS (51) V8 FLEX (3) V8 GAS (8) Any Body Style Wagon (1) Sport Utility (37) Any Submodel Base (8) Z71 (11) LS (28) LT (56) Other (12)

Below you can see a distribution of the fuel-ups with 791 outliers (8.62%) removed.

Following shows the average MPG of each of the 115 vehicles in the system.

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• Suburban

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed
  Added May 2018 • 3 Fuel-ups

  Property of meyersjm

• 14.7 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Dec 2018 • 66 Fuel-ups

  Property of ford_pickup

• 15.0 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Oct 2020 • 263 Fuel-ups

  Property of theglasgos

• 14.0 Avg MPG

• Super Grandma Suburban 1500

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Apr 2017 • 174 Fuel-ups

  Property of 2086

• 15.5 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 Z71 5.3L V8 FLEX Automatic 4 Speed
  Added Nov 2024 • 6 Fuel-ups

  Property of csjohnson08

• 15.6 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed
  Added Oct 2015 • 130 Fuel-ups

  Property of majorgeek

• 13.9 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 GAS V8
  Added Apr 2014 • 21 Fuel-ups

  Property of roundguy

• 11.1 Avg MPG

• Janet

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Jun 2018 • 50 Fuel-ups

  Property of dstroh15

• 14.1 Avg MPG

• Suburban 1500

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed
  Added May 2024 • 15 Fuel-ups

  Property of dufford1

• 15.2 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 5.3L V8 GAS Automatic 4 Speed
  Added Jun 2017 • 192 Fuel-ups

  Property of blithed

• 13.4 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed
  Added Feb 2023 • 63 Fuel-ups

  Property of 08uplander

• 16.2 Avg MPG

• Burb

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Jul 2024 • 6 Fuel-ups

  Property of NeptunusRex

• 16.2 Avg MPG

• Dirty 'burban

  2003 Chevrolet Suburban 1500 LS 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Dec 2021 • 36 Fuel-ups

  Property of NONo443

• 13.0 Avg MPG

• Green Machine

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Apr 2022 • 35 Fuel-ups

  Property of GrandPrix46

• 12.9 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 Z71
  Added May 2023 • 59 Fuel-ups

  Property of lakesidelooter

• 14.9 Avg MPG

• My Suburban 1500

  2003 Chevrolet Suburban 1500 Z71 5.3L V8 FLEX Automatic 4 Speed
  Added Nov 2023 • 6 Fuel-ups

  Property of uckosa

• 13.9 Avg MPG

• Big Burb.

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Sep 2021 • 69 Fuel-ups

  Property of robertpeart

• 13.0 Avg MPG

• Suburban 1500

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

  Property of FromHere

• 15.3 Avg MPG

• Green Giant

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Jul 2019 • 71 Fuel-ups

  Property of MrJeepguy

• 12.6 Avg MPG

• My Suburban

  2003 Chevrolet Suburban 1500 5.3L V8 GAS Automatic 4 Speed Sport Utility
  Added Jul 2023 • 28 Fuel-ups

  Property of RomanMoore

• 13.9 Avg MPG

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