2020 Buick LaCrosse Specs: MPG, Gas Mileage, Engine Size & Dimensions
2020 Buick LaCrosse Specs at a Glance
The 2020 Buick LaCrosse gets 29 mpg combined on the 2.5L Front-Wheel Drive configuration, weighs 3,838 lbs, measures 197.6 in long. Figures are per configuration, not a single official number — other trims rate as low as 20 mpg combined. Every figure below comes from EPA, NHTSA, or manufacturer published data — no estimates.
- Combined MPG
- 29 mpg (25 city / 35 hwy)
- Best configuration: 2.5L · Front-Wheel Drive · Automatic (S6) · other 2020 trims rate 20–29 mpg combined
- Engine
- 2.5L 4-cyl
- 2.5L · Front-Wheel Drive · Automatic (S6) · 3 powertrains offered
- Curb weight
- 3,838 lbs
- Heaviest recorded configuration: LACROSSE 4DR SEDAN AWD
- Length
- 197.6 in · 73.2 in wide · 57.5 in tall
- Wheelbase
- 114.6 in
- NHTSA overall
- 5-star (2017)
Detailed Specifications
MPG & Fuel Economy
MPG for every year and trim
View details →Engine Specifications
Engine Specs for every year and trim
View details →Annual Fuel Cost
Fuel Cost for every year and trim
View details →Transmission Specifications
Transmission for every year and trim
View details →Drivetrain & Drive Type
Drivetrain for every year and trim
View details →Vehicle Class & EPA Size Category
Vehicle Class for every year and trim
View details →Maintenance Schedule & Service Intervals
Maintenance for every year and trim
View details →Dimensions & Size
Dimensions for every year and trim
View details →Curb Weight
Curb Weight for every year and trim
View details →NHTSA Safety Ratings
Safety for every year and trim
View details →Buick LaCrosse — All Years Overview
| Year | Trim | Engine | Trans | Drive | City | Hwy | Combined | Fuel |
|---|---|---|---|---|---|---|---|---|
| 2019 | Auto (S6), 4 cyl, 2.5 L | 4 · 2.5L | Automatic (S6) | Front-Wheel Drive | 25 | 35 | 29 | Regular Gasoline |
| 2019 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | All-Wheel Drive | 20 | 29 | 23 | Regular Gasoline |
| 2019 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | Front-Wheel Drive | 20 | 30 | 24 | Regular Gasoline |
| 2018 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | All-Wheel Drive | 20 | 29 | 23 | Regular Gasoline |
| 2018 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | Front-Wheel Drive | 21 | 30 | 24 | Regular Gasoline |
| 2018 | Auto 6-spd, 4 cyl, 2.5 L | 4 · 2.5L | Automatic 6-spd | Front-Wheel Drive | 25 | 35 | 29 | Regular Gasoline |
| 2017 | Auto (S8), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S8) | Front-Wheel Drive | 21 | 31 | 25 | Regular Gasoline |
| 2017 | Auto (S8), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S8) | All-Wheel Drive | 20 | 29 | 23 | Regular Gasoline |
| 2016 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 24 | 35 | 28 | Regular Gasoline |
| 2016 | Auto (S6), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S6) | All-Wheel Drive | 17 | 26 | 20 | Regular Gasoline |
| 2016 | Auto (S6), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S6) | Front-Wheel Drive | 18 | 28 | 21 | Regular Gasoline |
| 2016 | Auto (S6), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S6) | Front-Wheel Drive | 18 | 28 | 21 | Regular Gasoline |
| 2015 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 24 | 35 | 28 | Regular Gasoline |
| 2015 | Auto (S6), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S6) | Front-Wheel Drive | 18 | 28 | 21 | Regular Gasoline |
| 2015 | Auto (S6), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S6) | Front-Wheel Drive | 18 | 28 | 21 | Regular Gasoline |
| 2015 | Auto (S6), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S6) | All-Wheel Drive | 17 | 26 | 20 | Regular Gasoline |
Compare across every brand
All Buick LaCrosse specifications
More Buick models
View all Buick models →Buick LaCrosse — Frequently Asked Questions
What is the fuel economy of the 2019 Buick LaCrosse?
The Buick LaCrosse is EPA-rated at up to 29 MPG combined (25 city / 35 highway).
What engine does the 2019 Buick LaCrosse have?
The Buick LaCrosse uses a 2.5L 4-cylinder engine paired with an Automatic transmission.
What years of the Buick LaCrosse are covered here?
This page documents 16 verified Buick LaCrosse configurations across model years 2015–2019.
Which model year of the Buick LaCrosse is the most fuel efficient?
The 2019 Buick LaCrosse holds the highest combined rating at 29 MPG; the 2017 sits lowest at 25 MPG, a difference of 4 MPG (about 16%) across the 5 rated years on file.
How many engine options does the Buick LaCrosse have?
The records list 3 distinct displacements for the Buick LaCrosse — 2.4L, 2.5L, 3.6L — which is why combined MPG varies between trims of the same year.
Is the 2019 Buick LaCrosse front-wheel drive or all-wheel drive?
The Buick LaCrosse appears in 2 drivetrain layouts across the years documented here — Front-Wheel Drive, All-Wheel Drive — with the latest 2019 record on Front-Wheel Drive.