Reference only. Data sourced from HUD/FHFA (2025). This site is a private entity and not affiliated with any government agency.
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Buick Fuel Economy Catalog

Explore every official DOE/EPA-backed trim for Buick, compare city, highway, and combined MPG, then jump into the quick fuel-cost calculator on any model page.

52 models728 trimsSource: FuelEconomy.gov data

2016–2019

Cascada

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City

21

Highway

29

Combined

24

4 official trims available for this model.

1984–2005

Century

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City

18

Highway

27

Combined

21

60 official trims available for this model.

1984

Century Estate Wagon

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City

19

Highway

26

Combined

22

9 official trims available for this model.

1985–1996

Century Wagon

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City

18

Highway

26

Combined

21

41 official trims available for this model.

1990–1995

Coachbuilder Wagon

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City

15

Highway

23

Combined

18

7 official trims available for this model.

1984

Electra Estate Wagon

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City

14

Highway

20

Combined

16

3 official trims available for this model.

1984–1990

Electra/Park Avenue

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City

16

Highway

25

Combined

19

16 official trims available for this model.

2008–2026

Enclave AWD

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City

20

Highway

24

Combined

21

19 official trims available for this model.

2008–2026

Enclave FWD

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City

20

Highway

25

Combined

22

19 official trims available for this model.

2013–2019

Encore

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City

26

Highway

31

Combined

28

11 official trims available for this model.

2013–2022

Encore AWD

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City

23

Highway

30

Combined

26

15 official trims available for this model.

2020–2022

Encore FWD

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City

24

Highway

32

Combined

27

4 official trims available for this model.

2020–2026

Encore GX AWD

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City

26

Highway

28

Combined

27

7 official trims available for this model.

2020–2026

Encore GX FWD

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City

29

Highway

31

Combined

30

13 official trims available for this model.

2026

Encore GX FWD (Flex Fuel)

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City

30

Highway

31

Combined

30

1 official trim available for this model.

2016–2026

Envision AWD

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City

22

Highway

28

Combined

25

15 official trims available for this model.

2017–2023

Envision FWD

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City

23

Highway

31

Combined

26

7 official trims available for this model.

2024–2026

Envista

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City

28

Highway

32

Combined

30

4 official trims available for this model.

2026

Envista (Flex Fuel)

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City

28

Highway

32

Combined

30

1 official trim available for this model.

1990

Estate Wagon

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City

15

Highway

22

Combined

18

1 official trim available for this model.

1996

Funeral Coach/Hearse

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City

15

Highway

24

Combined

18

1 official trim available for this model.

2011–2019

LaCrosse

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City

20

Highway

30

Combined

24

15 official trims available for this model.

2011–2019

LaCrosse AWD

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City

20

Highway

29

Combined

23

9 official trims available for this model.

2012–2019

LaCrosse eAssist

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City

25

Highway

35

Combined

29

7 official trims available for this model.

2005–2010

Lacrosse/Allure

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City

17

Highway

26

Combined

20

14 official trims available for this model.

2010

Lacrosse/Allure AWD

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City

16

Highway

25

Combined

19

1 official trim available for this model.

1984–2005

LeSabre

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City

18

Highway

27

Combined

21

35 official trims available for this model.

1985–1989

LeSabre/Electra Wagon

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City

15

Highway

22

Combined

18

7 official trims available for this model.

2006–2011

Lucerne

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City

17

Highway

26

Combined

21

15 official trims available for this model.

1991–2005

Park Avenue

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City

17

Highway

26

Combined

20

28 official trims available for this model.

2004–2007

Rainier 2WD

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City

14

Highway

20

Combined

16

8 official trims available for this model.

2004–2007

Rainier AWD

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City

14

Highway

20

Combined

16

8 official trims available for this model.

1988–1991

Reatta

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City

16

Highway

25

Combined

19

4 official trims available for this model.

1984–2020

Regal

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City

22

Highway

32

Combined

26

90 official trims available for this model.

2014–2020

Regal AWD

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City

21

Highway

29

Combined

24

10 official trims available for this model.

2018–2020

Regal TourX AWD

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City

21

Highway

29

Combined

24

3 official trims available for this model.

2012–2016

Regal eAssist

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City

24

Highway

35

Combined

28

5 official trims available for this model.

1997

Regal/Century

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City

18

Highway

26

Combined

21

3 official trims available for this model.

2002–2007

Rendezvous AWD

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City

16

Highway

21

Combined

18

9 official trims available for this model.

2002–2007

Rendezvous FWD

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City

17

Highway

23

Combined

19

8 official trims available for this model.

1984–1999

Riviera

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City

16

Highway

25

Combined

19

25 official trims available for this model.

1984–1985

Riviera Convertible

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City

15

Highway

21

Combined

17

8 official trims available for this model.

1992–1996

Roadmaster

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City

15

Highway

24

Combined

18

5 official trims available for this model.

1991–1996

Roadmaster Wagon

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City

15

Highway

24

Combined

18

7 official trims available for this model.

1984–1989

Skyhawk

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City

22

Highway

29

Combined

25

40 official trims available for this model.

1984–1989

Skyhawk Wagon

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City

22

Highway

29

Combined

25

28 official trims available for this model.

1984–1998

Skylark

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City

19

Highway

30

Combined

23

46 official trims available for this model.

1985

Somerset Regal

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City

17

Highway

24

Combined

19

4 official trims available for this model.

1986–1987

Somerset/Skylark

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City

19

Highway

29

Combined

23

6 official trims available for this model.

2005–2006

Terraza AWD

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City

15

Highway

21

Combined

17

2 official trims available for this model.

2005–2008

Terraza FWD

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City

16

Highway

23

Combined

19

6 official trims available for this model.

2012–2017

Verano

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City

21

Highway

31

Combined

24

14 official trims available for this model.