Buick

Buick LaCrosse

Buick LaCrosse
Photo: Kevauto / Wikimedia Commons · CC BY-SA 4.0

The official data lists 77 versions of the Buick LaCrosse (2005–2019), in the United States and Canada. Each market publishes its own figures, measured on its own test procedure.

At a glance

Years in the data
2005–2019
Markets
United States, Canada
Engines
2.4 L to 5.3 L
Fuels
Hybrid, Petrol, Flex fuel (E85)
Lowest consumption (United States)
8.1 L/100 km (EPA)
Lowest consumption (Canada)
8.1 L/100 km (5-cycle)

What is the Buick LaCrosse?

The LaCrosse is a four-door Buick sedan that took over the brand’s North American mid-size role from the Century and Regal. It brought a roomy, comfort-focused sedan to the range. In Canada, the first generation was sold as the Allure.

The LaCrosse’s North American run covered three generations, from 2005 through 2019. Its design evolved from a straightforward sedan into a more upscale-looking car, then into a newer-generation sedan on the E2XX platform. The range included hybrid versions.

LaCrosse generations

The first generation ran from 2005 to 2009 on the W-body platform. The second generation, from 2010 to 2016, moved to Epsilon II and adopted a more premium character. The third generation ran from 2017 to 2019 on the E2XX platform, with a mild-hybrid powertrain alongside petrol options.

Engines and fuel consumption

US EPA listings include hybrid, petrol and E85 flex-fuel versions, with engine sizes from 2.4 L to 5.3 L. The best combined EPA rating is 29 MPG; the lowest listed consumption is 8.1 L/100 km. Canadian NRCan listings cover petrol and E85 versions across the same engine-size range, with a lowest figure of 8.1 L/100 km on the 5-cycle test.

US EPA ratings and Canada’s 5-cycle results use different test procedures. European WLTP and older NEDC tests also differ from both, so consumption figures should be understood in the context of the market’s test method.

Where was the LaCrosse sold?

US EPA and Canadian NRCan listings both cover the LaCrosse from 2005 to 2019. US listings include hybrid versions, while Canadian listings cover petrol and E85 versions.

Questions and answers

How many North American LaCrosse generations are covered?

Three: the first from 2005 to 2009, the second from 2010 to 2016, and the third from 2017 to 2019.

What engine sizes are listed for the LaCrosse?

US and Canadian listings span 2.4 L to 5.3 L.

What is the LaCrosse’s best combined US fuel rating?

The best combined EPA rating is 29 MPG; the lowest listed consumption is 8.1 L/100 km.

Was the LaCrosse offered as a hybrid?

Yes. Hybrid versions appear in US EPA listings, and the third generation included a mild-hybrid powertrain.

LaCrosse first generation (2005–2009)

Buick LaCrosse first generation
Photo: Kevauto / Wikimedia Commons · CC BY-SA 4.0

Model codes: W-body · References: en.wikipedia.org

Show all 13 versions

LaCrosse second generation (2010–2016)

Buick LaCrosse second generation
Photo: Elise240SX / Wikimedia Commons · CC BY-SA 4.0

Model codes: Epsilon II · References: en.wikipedia.org

Show all 48 versions

LaCrosse third generation (2017–2019)

Buick LaCrosse third generation
Photo: Kevauto / Wikimedia Commons · CC BY-SA 4.0

Model codes: E2XX · References: en.wikipedia.org

United States 8 versions

Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.

Years and versionEngineFuelGearboxDriveConsumption (combined)CO₂
2019SIDI; Mild Hybrid; eAssist2.5 LHybrid6-speed automaticFront-wheel drive29 MPG (8.1 L/100 km) EPA191 g/km
2019SIDI3.6 LPetrol9-speed automaticFront-wheel drive24 MPG (9.8 L/100 km) EPA232 g/km
2019SIDI3.6 LPetrol9-speed automaticAll-wheel drive23 MPG (10.2 L/100 km) EPA238 g/km
2018SIDI; eAssist2.5 LHybrid6-speed automaticFront-wheel drive29 MPG (8.1 L/100 km) EPA190 g/km
2018SIDI3.6 LPetrol9-speed automaticAll-wheel drive23 MPG (10.2 L/100 km) EPA240 g/km
2018SIDI3.6 LPetrol9-speed automaticFront-wheel drive24 MPG (9.8 L/100 km) EPA228 g/km
2017SIDI3.6 LPetrol8-speed automaticFront-wheel drive25 MPG (9.4 L/100 km) EPA224 g/km
2017SIDI3.6 LPetrol8-speed automaticAll-wheel drive23 MPG (10.2 L/100 km) EPA235 g/km

Canada 8 versions

Model years sold in Canada, from Natural Resources Canada fuel consumption ratings (5-cycle test).

Years and versionEngineFuelGearboxConsumption (combined)CO₂
2019Mid-size2.5 LPetrol6-speed automatic8.2 L/100 km 5-cycle192 g/km
2019Mid-size3.6 LPetrol9-speed automatic9.9 L/100 km 5-cycle233 g/km
2019Mid-size3.6 LPetrol9-speed automatic10.1 L/100 km 5-cycle238 g/km
2018Mid-size2.5 LPetrol6-speed automatic8.1 L/100 km 5-cycle190 g/km
2018Mid-size3.6 LPetrol9-speed automatic9.7 L/100 km 5-cycle228 g/km
2018Mid-size3.6 LPetrol9-speed automatic10.1 L/100 km 5-cycle237 g/km
2017Mid-size3.6 LPetrol8-speed automatic9.5 L/100 km 5-cycle224 g/km
2017Mid-size3.6 LPetrol8-speed automatic10.0 L/100 km 5-cycle235 g/km

Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.