Based on data from 55 vehicles, 3,005 fuel-ups and 816,208 miles of driving, the 2003 Buick Century gets a combined Avg MPG of 23.38 with a 0.18 MPG margin of error.

Any Engine Type 3.1L V6 GAS (46) GAS (1) V6 GAS (7) Any Body Style Sedan (25) Any Submodel Custom (46) Other (9)

Below you can see a distribution of the fuel-ups with 59 outliers (1.93%) removed.

Following shows the average MPG of each of the 55 vehicles in the system.

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• Reliable Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jul 2011 • 91 Fuel-ups

  Property of RL

• 28.0 Avg MPG

• 03 Buick Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Nov 2014 • 52 Fuel-ups

  Property of Specz187

• 22.4 Avg MPG

• Bea the silver bullet

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jul 2015 • 12 Fuel-ups

  Property of Don_of_Engineering

• 28.8 Avg MPG

• Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Nov 2017 • 52 Fuel-ups

  Property of nitrogalaxie

• 23.0 Avg MPG

• My Century

  2003 Buick Century Custom 3.1L GAS V6 Automatic 4 Sedan (4 Door)
  Added Jun 2015 • 11 Fuel-ups

  Property of auzzki

• 20.5 Avg MPG

• Thugged Out Buick

  2003 Buick Century GAS V6
  Added Apr 2014 • 12 Fuel-ups

  Property of griffithvmi

• 23.1 Avg MPG

• Buick Century

  2003 Buick Century GAS V6
  Added Feb 2011 • 9 Fuel-ups

  Property of JSSuper

• 29.2 Avg MPG

• the "B"

  2003 Buick Century
  Added Nov 2013 • 13 Fuel-ups

  Property of remedy

• 31.0 Avg MPG

• BC

  2003 Buick Century GAS V6
  Added Aug 2012 • 55 Fuel-ups

  Property of linx3566

• 25.3 Avg MPG

• Buick

  2003 Buick Century GAS V6
  Added Jan 2012 • 10 Fuel-ups

  Property of davidwli

• 24.0 Avg MPG

• Buick Century

  2003 Buick Century GAS V6
  Added Aug 2008 • 64 Fuel-ups

  Property of kmette

• 24.7 Avg MPG

• Road Warrior

  2003 Buick Century GAS
  Added Apr 2009 • 33 Fuel-ups

  Property of Whirl

• 25.9 Avg MPG

• only car

  2003 Buick Century GAS V6
  Added Sep 2008 • 12 Fuel-ups

  Property of ken

• 24.7 Avg MPG

• Buick

  2003 Buick Century GAS V6
  Added Sep 2008 • 12 Fuel-ups

  Property of ron

• 25.5 Avg MPG

• 2003 Buick Century Custom

  2003 Buick Century Custom 3.1L V6 GAS
  Added Nov 2012 • 254 Fuel-ups

  Property of jeffdaman

• 23.2 Avg MPG

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