Based on data from 23 vehicles, 1,521 fuel-ups and 417,254 miles of driving, the 2005 Buick LaCrosse gets a combined Avg MPG of 19.39 with a 0.24 MPG margin of error.

Any Engine Type 3.6L V6 GAS (2) 3.8L V6 GAS (17) V6 GAS (4) Any Body Style Sedan (7) Any Submodel CXS (2) CX (5) CXL (12) Other (4)

Below you can see a distribution of the fuel-ups with 69 outliers (4.34%) removed.

Following shows the average MPG of each of the 23 vehicles in the system.

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• Buick

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic Sedan
  Added Mar 2022 • 139 Fuel-ups

  Property of mileslatham

• 24.7 Avg MPG

• Lacrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Sep 2018 • 283 Fuel-ups

  Property of Jenwah123

• 19.7 Avg MPG

• My LaCrosse

  2005 Buick LaCrosse CX 3.8L V6 GAS Automatic 4 Speed
  Added Dec 2021 • 102 Fuel-ups

  Property of Sugarbear630

• 17.5 Avg MPG

• My LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added May 2022 • 104 Fuel-ups

  Property of Clark_Kadwell

• 17.0 Avg MPG

• Ol' Red

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Oct 2023 • 7 Fuel-ups

  Property of UncleSnail

• 21.8 Avg MPG

• My LaCrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added May 2018 • 40 Fuel-ups

  Property of JacksBuick

• 16.2 Avg MPG

• Black Betty

  2005 Buick LaCrosse CXS 3.6L V6 GAS Automatic 4 Speed Sedan
  Added Jan 2022 • 85 Fuel-ups

  Property of Hats20001

• 24.0 Avg MPG

• Jessica Buick

  2005 Buick LaCrosse CX 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Sep 2023 • 8 Fuel-ups

  Property of charsha

• 19.4 Avg MPG

• Buick

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Jul 2018 • 90 Fuel-ups

  Property of bschilder

• 37.7 Avg MPG

• Lacrosse

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed
  Added May 2019 • 255 Fuel-ups

  Property of patsmac

• 20.3 Avg MPG

• Buick

  2005 Buick LaCrosse CXL 3.8L V6 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 27 Fuel-ups

  Property of josie1

• 35.3 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

• 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

• 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

• Lacrosse

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

  Property of nikki3973

• 22.6 Avg MPG

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