Based on data from 17 vehicles, 1,512 fuel-ups and 415,329 miles of driving, the 2015 Buick LaCrosse gets a combined Avg MPG of 20.41 with a 0.29 MPG margin of error.

Any Engine Type 2.4L L4 MILD HYBRID EV-GAS (MHEV) (1) 3.6L V6 FLEX (16) Any Body Style Sedan (3) Any Submodel Premium (4) Leather (13)

Below you can see a distribution of the fuel-ups with 59 outliers (3.76%) removed.

Following shows the average MPG of each of the 17 vehicles in the system.

• Scott’s Buick LaCrosse

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Jan 2023 • 108 Fuel-ups

  Property of brody3665

• 24.0 Avg MPG

• Buick LaCrosse

  2015 Buick LaCrosse Premium 3.6L V6 FLEX Automatic 6 Speed
  Added Sep 2016 • 163 Fuel-ups

  Property of darrgarr

• 20.3 Avg MPG

• Buick LaCrosse

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed Sedan
  Added Jun 2024 • 5 Fuel-ups

  Property of RWLloyd57

• 21.0 Avg MPG

• My LaCrosse

  2015 Buick LaCrosse Leather 2.4L L4 MILD HYBRID EV-GAS (MHEV) Automatic 6 Speed
  Added Oct 2021 • 33 Fuel-ups

  Property of CGJr

• 26.2 Avg MPG

• My LaCrosse

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Dec 2022 • 61 Fuel-ups

  Property of mjackman

• 17.1 Avg MPG

• LaCrosse

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Oct 2019 • 36 Fuel-ups

  Property of soccerfan1

• 24.1 Avg MPG

• Chris Cross Apple Sauce

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Oct 2016 • 193 Fuel-ups

  Property of chriscruze

• 24.8 Avg MPG

• My LaCrosse

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Aug 2019 • 18 Fuel-ups

  Property of mooocow

• 24.3 Avg MPG

• Buick

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Sep 2016 • 215 Fuel-ups

  Property of carsrcrazy

• 20.8 Avg MPG

• GMC

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Aug 2016 • 200 Fuel-ups

  Property of trikerider

• 14.5 Avg MPG

• LaCrosse

  2015 Buick LaCrosse Premium 3.6L V6 FLEX Automatic 6 Speed
  Added Apr 2019 • 17 Fuel-ups

  Property of stimak

• 24.5 Avg MPG

• Golden Carriage (Buick)

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed Sedan
  Added Aug 2015 • 85 Fuel-ups

  Property of Mediator

• 29.5 Avg MPG

• Bucky

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added May 2018 • 204 Fuel-ups

  Property of GrandpaJack

• 21.5 Avg MPG

• 2015 Buick Lacrosse

  2015 Buick LaCrosse Premium 3.6L V6 FLEX Automatic 6 Speed
  Added Nov 2016 • 114 Fuel-ups

  Property of hawke51

• 41.7 Avg MPG

• 2015 Buick Lacrosse

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added Sep 2016 • 69 Fuel-ups

  Property of gwenroy

• 42.8 Avg MPG

• Bucky

  2015 Buick LaCrosse Leather 3.6L V6 FLEX Automatic 6 Speed
  Added May 2018 • 89 Fuel-ups

  Property of GrandpaJack

• 21.8 Avg MPG

• My LaCrosse

  2015 Buick LaCrosse Premium 3.6L V6 FLEX Automatic 6 Speed Sedan
  Added Dec 2015 • 48 Fuel-ups

  Property of gkonzal

• 22.6 Avg MPG