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2009 Buick LaCrosse CXL
Shown: 2009 Buick LaCrosse CXL. Photo: Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
  • Newest year: 2016
  • Gas
  • Hybrid
  • Midsize cars

2011-2016 Buick LaCrosse MPG & Fuel Cost

6 model years · 20–29 MPG combined

21 MPG
Combined
18 MPG
City
28 MPG
Highway
Annual fuel cost · LaCrosse 3.6L 6-cyl FWD
$3,040

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 5 of 10 midsize car configurations, MY2016. Ranked against all rated configurations, not sales-weighted.

2011-2016 Buick LaCrosse at a glance

The 2011-2016 Buick LaCrosse covers 6 model years in the EPA database (23 configurations in all), rated 20–29 MPG combined. The newest model year, 2016, costs about $2,310 a year to fuel for its most efficient version, the eAssist 2.4L 4-cyl FWD (28 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). Powertrains over the years: gas and hybrid. EPA changed the ratings in 2012, 2013, 2014, 2015 and 2016. The best combined rating in the generation, 29 MPG, was reached in 2013.

2011-2016 Buick LaCrosse by model year

2011-2016 Buick LaCrosse: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2016 Gas, Hybrid 20–28 MPG $2,310–$3,250 Ratings changed
2015 Gas, Hybrid 20–28 MPG $2,310–$3,260 Ratings changed
2014 Gas, Hybrid 20–28 MPG $2,310–$3,220 Ratings changed
2013 Gas, Hybrid 20–29 MPG $2,280–$3,330 Ratings changed
2012 Gas, Hybrid 20–28 MPG $2,320–$3,330 Ratings changed
2011 Gas 20–23 MPG $2,890–$3,330 First year

What the 2016 LaCrosse 3.6L 6-cyl FWD costs to drive

Per month

$253

$3,040 a year ÷ 12

Per 25 miles

$5.07

Per 100 miles

$20.27

Five years

$15,200

5 × the yearly cost, prices held at today's level

vs the midsize car median

$160more a year

Class median $2,880 a year, MY2016

Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).

2016 Buick LaCrosse MPG

Versus 2015: The most efficient configuration stays at 28 MPG. Its annual cost stays at $2,310.

Gas · 3.6L
Combined
20–21 MPG
Per year
$3,040–$3,250
See gas configurations
Hybrid · 2.4L
Combined
28 MPG
Per year
$2,310
See hybrid configurations

Gas configurations (3)

2016 Buick LaCrosse gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
LaCrosse 3.6L 6-cyl FWD Automatic (S6) (Most efficient) 3.6L 6-cyl FWD 18 28 21 $3,040
LaCrosse 3.6L 6-cyl FWD Automatic (S6) 3.6L 6-cyl FWD 18 28 21 $3,110
LaCrosse 3.6L 6-cyl AWD 3.6L 6-cyl AWD 17 26 20 $3,250

Flex-fuel (E85) configurations are costed on gasoline, not E85.

Hybrid configurations (1)

2016 Buick LaCrosse hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
eAssist (Most efficient) 2.4L 4-cyl FWD 24 35 28 $2,310

2015 Buick LaCrosse MPG

20–28 MPG · $2,310–$3,260/yr

Versus 2014: The most efficient configuration stays at 28 MPG. Its annual cost stays at $2,310.

Gas · 3.6L
Combined
20–21 MPG
Per year
$3,080–$3,260
See gas configurations
Hybrid · 2.4L
Combined
28 MPG
Per year
$2,310
See hybrid configurations

Gas configurations (3)

2015 Buick LaCrosse gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
LaCrosse 3.6L 6-cyl FWD Automatic (S6) (Most efficient) 3.6L 6-cyl FWD 18 28 21 $3,080
LaCrosse 3.6L 6-cyl FWD Automatic (S6) 3.6L 6-cyl FWD 18 28 21 $3,110
LaCrosse 3.6L 6-cyl AWD 3.6L 6-cyl AWD 17 26 20 $3,260

Flex-fuel (E85) configurations are costed on gasoline, not E85.

Hybrid configurations (1)

2015 Buick LaCrosse hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
eAssist (Most efficient) 2.4L 4-cyl FWD 24 35 28 $2,310

2014 Buick LaCrosse MPG

20–28 MPG · $2,310–$3,220/yr

Versus 2013: The most efficient configuration moves from 29 to 28 MPG, down 1. Its annual cost goes from $2,280 to $2,310, $30 more.

Gas · 3.6L
Combined
20–21 MPG
Per year
$3,070–$3,220
See gas configurations
Hybrid · 2.4L
Combined
28 MPG
Per year
$2,310
See hybrid configurations

Gas configurations (3)

2014 Buick LaCrosse gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
LaCrosse 3.6L 6-cyl FWD Automatic (S6) (Most efficient) 3.6L 6-cyl FWD 18 28 21 $3,070
LaCrosse 3.6L 6-cyl FWD Automatic (S6) 3.6L 6-cyl FWD 18 28 21 $3,110
LaCrosse 3.6L 6-cyl AWD 3.6L 6-cyl AWD 17 26 20 $3,220

Flex-fuel (E85) configurations are costed on gasoline, not E85.

Hybrid configurations (1)

2014 Buick LaCrosse hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
eAssist (Most efficient) 2.4L 4-cyl FWD 24 35 28 $2,310

2013 Buick LaCrosse MPG

20–29 MPG · $2,280–$3,330/yr

Versus 2012: The most efficient configuration moves from 28 to 29 MPG, up 1. Its annual cost goes from $2,320 to $2,280, $40 less.

Gas · 3.6L
Combined
20–21 MPG
Per year
$3,160–$3,330
See gas configurations
Hybrid · 2.4L
Combined
29 MPG
Per year
$2,280
See hybrid configurations

Gas configurations (3)

2013 Buick LaCrosse gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
LaCrosse 3.6L 6-cyl FWD Automatic (S6) (Most efficient) 3.6L 6-cyl FWD 17 27 21 $3,160
LaCrosse 3.6L 6-cyl FWD Automatic (S6) 3.6L 6-cyl FWD 17 27 21 $3,180
LaCrosse 3.6L 6-cyl AWD 3.6L 6-cyl AWD 17 25 20 $3,330

Flex-fuel (E85) configurations are costed on gasoline, not E85.

Hybrid configurations (1)

2013 Buick LaCrosse hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
eAssist (Most efficient) 2.4L 4-cyl FWD 25 36 29 $2,280

2012 Buick LaCrosse MPG

20–28 MPG · $2,320–$3,330/yr

Versus 2011: The most efficient configuration moves from 23 to 28 MPG, up 5. Its annual cost goes from $2,890 to $2,320, $570 less.

Gas · 3.6L
Combined
20–21 MPG
Per year
$3,160–$3,330
See gas configurations
Hybrid · 2.4L
Combined
28 MPG
Per year
$2,320
See hybrid configurations

Gas configurations (3)

2012 Buick LaCrosse gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
LaCrosse 3.6L 6-cyl FWD Automatic (S6) (Most efficient) 3.6L 6-cyl FWD 17 27 21 $3,160
LaCrosse 3.6L 6-cyl FWD Automatic (S6) 3.6L 6-cyl FWD 17 27 21 $3,170
LaCrosse 3.6L 6-cyl AWD 3.6L 6-cyl AWD 16 26 20 $3,330

Flex-fuel (E85) configurations are costed on gasoline, not E85.

Hybrid configurations (1)

2012 Buick LaCrosse hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
eAssist (Most efficient) 2.4L 4-cyl FWD 24 35 28 $2,320

2011 Buick LaCrosse MPG

20–23 MPG · $2,890–$3,330/yr
Gas · 2.4L, 3.6L
Combined
20–23 MPG
Per year
$2,890–$3,330

Gas configurations (3)

2011 Buick LaCrosse gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
LaCrosse 2.4L 4-cyl (Most efficient) 2.4L 4-cyl FWD 19 29 23 $2,890
LaCrosse 3.6L 6-cyl FWD 3.6L 6-cyl FWD 17 27 20 $3,240
LaCrosse 3.6L 6-cyl AWD 3.6L 6-cyl AWD 16 26 20 $3,330

Fuel cost by state

Yearly cost of the LaCrosse 3.6L 6-cyl FWD: $4,140 in California and $2,650 in Texas, a $1,490 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2016 midsize car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2011-2016 Buick LaCrosse get?

EPA rates the 2011-2016 Buick LaCrosse at 20–29 MPG combined across 23 configurations and 6 model years. The most efficient version, the 2013 eAssist 2.4L 4-cyl FWD, is rated 29 MPG (25 city, 36 highway). By powertrain: Gas: 20–23 MPG; Hybrid: 28–29 MPG.

Which years had the best MPG in the 2011-2016 Buick LaCrosse?

The eAssist 2.4L 4-cyl FWD reached the generation's best combined rating, 29 MPG, in 2013. The lowest top rating, 23 MPG, was in 2011.

Did EPA ratings change during the 2011-2016 Buick LaCrosse?

Yes. Ratings changed in 2012, 2013, 2014, 2015 and 2016.

How much does it cost to fuel a 2016 Buick LaCrosse per year?

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the LaCrosse 3.6L 6-cyl FWD costs about $3,040 a year. Across all 4 configurations the cost runs $2,310–$3,250 a year. That is a $940 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2016 Buick LaCrosse 100 miles?

About $20.27 per 100 miles for the LaCrosse 3.6L 6-cyl FWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $15.40 and $21.67 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2016 Buick LaCrosse more efficient in the city or on the highway?

The LaCrosse 3.6L 6-cyl FWD is rated 18 city and 28 highway MPG, so it is more efficient on the highway, by 10 MPG.

How does the 2016 Buick LaCrosse compare with other midsize car configurations?

The LaCrosse 3.6L 6-cyl FWD costs about $3,040 a year to fuel, $160 more than the class median of $2,880, and less than 5 of 10 midsize car configurations. The comparison covers all 195 rated midsize car configurations for MY2016, not weighted by sales.

Is the 2016 Buick LaCrosse hybrid cheaper to fuel than the gas version?

Yes. The best hybrid (eAssist 2.4L 4-cyl FWD) is rated 28 MPG against 21 MPG for the best gas version (LaCrosse 3.6L 6-cyl FWD), 7 MPG more. At regular gasoline $4.36/gal (U.S. average, Sep 2026) that is $2,310 versus $3,040 a year, a saving of $730.

Is the 2016 Buick LaCrosse different from the 2015 model?

The most efficient configuration stays at 28 MPG. Its annual cost stays at $2,310. EPA lists 4 configurations for 2016 against 4 configurations for 2015. See the 2015 Buick LaCrosse for that year.