Based on data from 19 vehicles, 701 fuel-ups and 189,355 miles of driving, the 2005 Buick LaCrosse gets a combined Avg MPG of 19.43 with a 0.30 MPG margin of error.

Any Engine Type 3.6L V6 GAS (1) 3.8L V6 GAS (14) V6 GAS (4) Any Body Style Sedan (3) Any Submodel CXS (1) CX (4) CXL (10) Other (4)

Below you can see a distribution of the fuel-ups with 56 outliers (7.40%) removed.

Following shows the average MPG of each of the 19 vehicles in the system.

• My LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added May 2018 • 7 Fuel-ups

  Property of JacksBuick

• 21.6 Avg MPG

• Buick

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 39 Fuel-ups

  Property of StaceS2131

• 21.5 Avg MPG

• Buick

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 6 Fuel-ups

  Property of josie1

• 22.4 Avg MPG

• Buick Lacrosse

  2005 Buick LaCrosse CX 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 123 Fuel-ups

  Property of katmill80

• 19.3 Avg MPG

• Allie's LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 19 Fuel-ups

  Property of davidnetherland

• 39.1 Avg MPG

• Doug's 2005 LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added Aug 2016 • 310 Fuel-ups

  Property of DougShull

• 21.1 Avg MPG

• Sasha

  2005 Buick LaCrosse CXS 3.6L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 26 Fuel-ups

  Property of clmcleod00

• 30.6 Avg MPG

• My LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 8 Fuel-ups

  Property of santiapodaca

• 25.0 Avg MPG

• Buick LaCrosse

  2005 Buick LaCrosse CX 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 18 Fuel-ups

  Property of tblsr

• 25.4 Avg MPG

• LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Oct 2015 • 5 Fuel-ups

  Property of davidnetherland

• 48.2 Avg MPG

• LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added Feb 2018 • 119 Fuel-ups

  Property of mam0912

• 18.8 Avg MPG

• 05 LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 8 Fuel-ups

  Property of Panda86

• 25.1 Avg MPG

• My LaCrosse

  2005 Buick LaCrosse CX 3.8L GAS V6 Automatic 4
  Added Apr 2015 • 4 Fuel-ups

  Property of sboley2687

• 22.7 Avg MPG

• LaCrosse

  2005 Buick LaCrosse CX 3.8L GAS V6 Automatic 4 Sedan (4 Door)
  Added Nov 2014 • 15 Fuel-ups

  Property of Evil_Rich

• 25.5 Avg MPG

• 2005 Buick LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 103 Fuel-ups

  Property of GreatIndoorsman

• 21.4 Avg MPG

• Lacrosse

  2005 Buick LaCrosse GAS V6
  Added Apr 2014 • 11 Fuel-ups

  Property of nikki3973

• 22.6 Avg MPG

• Buick

  2005 Buick LaCrosse GAS V6
  Added Jan 2014 • 21 Fuel-ups

  Property of nawstin

• 25.3 Avg MPG

• 2005 Buick LaCrosse

  2005 Buick LaCrosse GAS V6
  Added Sep 2008 • 9 Fuel-ups

  Property of BrujoFeo

• 21.5 Avg MPG

• Buick

  2005 Buick LaCrosse GAS V6
  Added Jan 2013 • 13 Fuel-ups

  Property of oually

• 18.3 Avg MPG