Based on data from 55 vehicles, 3,003 fuel-ups and 815,530 miles of driving, the 2003 Buick Century gets a combined Avg MPG of 23.37 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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• Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Aug 2018 • 8 Fuel-ups

  Property of memeguy

• 27.1 Avg MPG

• Gracie

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 54 Fuel-ups

  Property of tricerah

• 21.2 Avg MPG

• Bevs Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Sep 2018 • 86 Fuel-ups

  Property of chuckcrow

• 29.2 Avg MPG

• Copper

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jan 2019 • 284 Fuel-ups

  Property of garonic

• 24.6 Avg MPG

• Shirley

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 22 Fuel-ups

  Property of WendyIvey

• 23.8 Avg MPG

• Silver Bullet 2.0

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 48 Fuel-ups

  Property of Careist8247

• 27.2 Avg MPG

• Marshall's car

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jan 2019 • 4 Fuel-ups

  Property of Mgreen6

• 24.5 Avg MPG

• Buick Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Jan 2018 • 130 Fuel-ups

  Property of mmartin798

• 23.1 Avg MPG

• My Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jan 2016 • 163 Fuel-ups

  Property of mewhinney

• 25.9 Avg MPG

• Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 122 Fuel-ups

  Property of DanHoughton

• 24.5 Avg MPG

• My Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 27 Fuel-ups

  Property of bparrett

• 22.0 Avg MPG

• My Century

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Feb 2018 • 55 Fuel-ups

  Property of Rbervik

• 26.9 Avg MPG

• Big Red

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Nov 2016 • 76 Fuel-ups

  Property of xAgyex

• 26.0 Avg MPG

• My Century

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

  Property of DavisV

• 19.0 Avg MPG

• Goldilocks

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Oct 2017 • 12 Fuel-ups

  Property of melbelletx

• 32.4 Avg MPG

• ZZ_Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 120 Fuel-ups

  Property of Mfl_jr

• 26.6 Avg MPG

• Grey GOOSE

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 49 Fuel-ups

  Property of BPAWEA

• 27.5 Avg MPG

• 03 Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jun 2014 • 45 Fuel-ups

  Property of random0munky

• 23.0 Avg MPG

• Gladys the Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Jun 2016 • 47 Fuel-ups

  Property of JoshBuick

• 28.0 Avg MPG

• Jess' Buick

  2003 Buick Century Custom 3.1L V6 GAS Automatic 4 Speed Sedan
  Added Feb 2016 • 4 Fuel-ups

  Property of carlyle

• 27.0 Avg MPG

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