Logbooks filed under · BUICK
Buick fuel economy
32 Buick models with five or more years of test sheets on file. Most efficient: the Encore GX FWD at 30 MPG.
Every Buick on file, best sheet first
| Model | Combined | Fuel/yr | Class | Years |
|---|---|---|---|---|
| Encore GX FWD | 30 MPG | $1600 | Small Sport Utility Vehicle 2WD | 2020–2026 |
| LaCrosse eAssist | 29 MPG | $1655 | Midsize Cars | 2012–2019 |
| Regal eAssist | 28 MPG | $1714 | Midsize Cars | 2012–2016 |
| Encore | 27.5 MPG | $1745 | Small Sport Utility Vehicle 2WD | 2013–2019 |
| Encore GX AWD | 27 MPG | $1778 | Small Sport Utility Vehicle 4WD | 2020–2026 |
| Encore AWD | 26 MPG | $1846 | Small Sport Utility Vehicle 4WD | 2013–2022 |
| Envision FWD | 26 MPG | $1846 | Small Sport Utility Vehicle 2WD | 2017–2023 |
| Regal | 26 MPG | $1846 | Midsize Cars | 1984–2020 |
| Skyhawk | 25.5 MPG | $1882 | Compact Cars | 1984–1989 |
| Skyhawk Wagon | 25.5 MPG | $1882 | Small Station Wagons | 1984–1989 |
| Envision AWD | 25 MPG | $1920 | Small Sport Utility Vehicle 4WD | 2016–2026 |
| LaCrosse | 24 MPG | $2000 | Midsize Cars | 2011–2019 |
| Verano | 24 MPG | $2000 | Compact Cars | 2012–2017 |
| LaCrosse AWD | 23 MPG | $2087 | Midsize Cars | 2011–2019 |
| Regal AWD | 23 MPG | $2087 | Midsize Cars | 2014–2020 |
| Enclave FWD | 22 MPG | $2182 | Standard Sport Utility Vehicle 2WD | 2008–2026 |
| Skylark | 22 MPG | $2182 | Compact Cars | 1984–1998 |
| Lacrosse/Allure | 21.3 MPG | $2254 | Midsize Cars | 2005–2010 |
| Century | 21 MPG | $2286 | Midsize Cars | 1984–2005 |
| Century Wagon | 21 MPG | $2286 | Midsize-Large Station Wagons | 1985–1996 |
| Enclave AWD | 21 MPG | $2286 | Standard Sport Utility Vehicle 4WD | 2008–2026 |
| LeSabre | 21 MPG | $2286 | Large Cars | 1984–2005 |
| Park Avenue | 20.5 MPG | $2341 | Large Cars | 1991–2005 |
| Lucerne | 19.5 MPG | $2462 | Large Cars | 2006–2011 |
| Electra/Park Avenue | 19 MPG | $2526 | Large Cars | 1984–1990 |
| Rendezvous FWD | 19 MPG | $2526 | Sport Utility Vehicle - 2WD | 2002–2007 |
| Riviera | 19 MPG | $2526 | Midsize Cars | 1984–1999 |
| Coachbuilder Wagon | 18 MPG | $2667 | Special Purpose Vehicles | 1990–1995 |
| LeSabre/Electra Wagon | 18 MPG | $2667 | Midsize-Large Station Wagons | 1985–1989 |
| Rendezvous AWD | 18 MPG | $2667 | Sport Utility Vehicle - 4WD | 2002–2007 |
| Roadmaster | 18 MPG | $2667 | Large Cars | 1992–1996 |
| Roadmaster Wagon | 18 MPG | $2667 | Midsize-Large Station Wagons | 1991–1996 |
Fuel costs at $3.20/gal fixed JUL 2026, over 15,000 miles a year — the same basis used everywhere in this book. Electric models are rated in MPGe and are not directly comparable on fuel cost.
SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026
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