2018 · Midsize Car · Gas

2018 Buick LaCrosse MPG & fuel economy

The 2018 Buick LaCrosse is a midsize car offered in 2 EPA-rated configurations. The most efficient version returns 24 MPG combined (21 city / 30 highway) on regular gasoline. Across the lineup, combined ratings range from 23 to 24 MPG. That's down 1 MPG from the 2017 model. Among 74 midsize cars rated for 2018, it ranks 43rd for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $1,938 a year to fuel.

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Combined 24 MPG 21 MPG city · 30 MPG hwy

Driving range — not published for this model

Your fuel cost $1,938 15,000 mi/yr · $12.92 per 100 mi

Class rank, 2018 #43 of 74 Midsize Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Regular gas $/gal

Fuel average

The 2018 Buick LaCrosse's fuel average is 10.2 km/L (9.8 L/100 km), or 24 MPG combined: 8.9 km/L in the city and 12.8 km/L on the highway.

	MPG	km/L	L/100 km
City	21	8.9	11.2
Highway	30	12.8	7.8
Combined	24	10.2	9.8

How it ranks among 2018 Midsize Cars

Full class ranking →

1Hyundai Ioniq EV136 MPGe $675
2Tesla Model 3130 MPGe $699
3Toyota Prius Prime133 MPGe + 54 MPG $763
4Honda Clarity EV114 MPGe $796
5Nissan Leaf112 MPGe $810
···
43Buick LaCrosse24 MPG $1,938
···
74Honda Clarity68 MPGe $7,941

2018 LaCrosseOther midsize carsClass median: $1,921/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

LaCrosse MPG across model years

Full history →

2 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
FWD · 3.6L 6-cyl · 9-speed automatic LaCrosse	Gas	21 MPG	30 MPG	24 MPG	—	$1,938
AWD · 3.6L 6-cyl · 9-speed automatic LaCrosse AWD	Gas	20 MPG	29 MPG	23 MPG	—	$2,022

Specs (most efficient configuration)

Fuel: Regular gasoline
Engine / motor: 3.6L 6-cyl
Transmission: 9-speed automatic
Drivetrain: FWD
Passenger volume: 102 cu ft
Cargo volume: 16 cu ft
Tailpipe CO₂: 367 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2018 Buick LaCrosse vs. rivals

vs Toyota Avalon 24 MPG · $1,938/yr Same fuel cost vs Ford Fusion 27 MPG · $1,722/yr Fusion saves $215/yr vs MINI Countryman Plug-in Hybrid 65 MPGe + 27 MPG · $1,931/yr Countryman Plug-in Hybrid saves $6/yr vs Volkswagen Passat 29 MPG · $1,603/yr Passat saves $334/yr vs MINI Countryman 28 MPG · $2,116/yr LaCrosse saves $179/yr vs Dodge Challenger 23 MPG · $2,022/yr LaCrosse saves $84/yr vs Nissan Maxima 25 MPG · $2,370/yr LaCrosse saves $432/yr vs MINI Clubman 28 MPG · $2,116/yr LaCrosse saves $179/yr vs Kia Stinger 25 MPG · $2,370/yr LaCrosse saves $432/yr vs Buick LaCrosse Hybrid 29 MPG · $1,603/yr LaCrosse Hybrid saves $334/yr vs Honda Clarity 68 MPGe · $7,941/yr LaCrosse saves $6,004/yr

Compare the 2018 LaCrosse

With any other car from any year, including other LaCrosse model years. Type a year to jump, e.g. "2015 Accord".

Same year, other powertrains: 2018 Buick LaCrosse Hybrid (29 MPG)

Frequently asked questions

What is the gas mileage of the 2018 Buick LaCrosse?

Up to 24 MPG combined (21 city / 30 highway); ratings range from 23 to 24 MPG depending on configuration.

What fuel does the 2018 Buick LaCrosse use?

Regular gasoline.

What is the fuel average in km/L for the 2018 Buick LaCrosse?