Based on data from 115 vehicles, 8,361 fuel-ups and 2,572,286 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 788 outliers (8.61%) removed.

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

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• Suburban

  2003 Chevrolet Suburban 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 156 Fuel-ups

  Property of jehuygens

• 13.6 Avg MPG

• Dorothy

  2003 Chevrolet Suburban 1500 GAS V8
  Added Jan 2013 • 92 Fuel-ups

  Property of IraAllen

• 14.6 Avg MPG

• Reggie

  2003 Chevrolet Suburban 1500 Z 71 V8 GAS
  Added Mar 2018 • 45 Fuel-ups

  Property of rack

• 14.2 Avg MPG

• Suburban 03

  2003 Chevrolet Suburban 1500 GAS V8
  Added Oct 2013 • 27 Fuel-ups

  Property of holsonjr

• 15.5 Avg MPG

• green monstah

  2003 Chevrolet Suburban 1500 LT 5.3L GAS V8 Automatic 4 Sport Utility (4 Door)
  Added Jul 2014 • 3 Fuel-ups

  Property of coganst

• 12.9 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 FLEX V8
  Added Jan 2014 • 3 Fuel-ups

  Property of C0reCollector

• 12.9 Avg MPG

• Parent's

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Oct 2017 • 28 Fuel-ups

  Property of androthyn

• 14.0 Avg MPG

• Parent's

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed Sport Utility
  Added Dec 2019 • 28 Fuel-ups

  Property of androthyn

• 14.0 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 LT 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 62 Fuel-ups

  Property of bscarl01

• 13.6 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 GAS V8
  Added May 2012 • 20 Fuel-ups

  Property of stansworld

• 18.8 Avg MPG

• Suburban

  2003 Chevrolet Suburban 1500 LS 5.3L V8 FLEX Automatic 4 Speed
  Added Sep 2016 • 108 Fuel-ups

  Property of sdennis

• 15.8 Avg MPG

• Lory's Suburban

  2003 Chevrolet Suburban 1500 FLEX V8
  Added Jan 2012 • 6 Fuel-ups

  Property of rplemmons

• 14.3 Avg MPG

• Burban

  2003 Chevrolet Suburban 1500 FLEX V8
  Added May 2011 • 7 Fuel-ups

  Property of bullschuck

• 15.0 Avg MPG

• Big Burb

  2003 Chevrolet Suburban 1500 GAS V8
  Added Aug 2010 • 59 Fuel-ups

  Property of jlove1974

• 17.0 Avg MPG

• MIB

  2003 Chevrolet Suburban 1500 GAS V8
  Added Jun 2009 • 10 Fuel-ups

  Property of PTMIB2

• 11.7 Avg MPG

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