Buick Fuel Economy and Fuel Cost by Model
Buick has 16 models with EPA fuel economy ratings between 2000 and 2027. In model year 2026 the combined ratings of its models run 22–30 MPG. The most efficient is the 2026 Buick Encore at 30 MPG, about $2,180 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The cheapest to fuel is the 2026 Buick Envista at about $2,160 a year. 2 of its models offer a hybrid, plug-in hybrid or electric version.
Models
16
2000–2027
Most efficient, MY2026
30MPG
Buick Encore
Cheapest to fuel, MY2026
$2,160/yr
Buick Envista
Electrified models
2
hybrid, plug-in or electric
Most efficient Buick models, MY2026
| 1 |  2026 Buick Encore Small SUVs | 30 | $2,180 |
| 2 |  2026 Buick Envista Wagons | 30 | $2,160 |
| 3 |  2026 Buick Envision Small SUVs | 25 | $2,650 |
| 4 |  2026 Buick Enclave Standard SUVs | 22 | $2,910 |
All Buick models
| Model | Model years | Powertrains | Latest MY | Combined | $/yr |
|---|---|---|---|---|---|
| Buick Envision | 2016–2026 | Gas | 2026 | 25 | $2,650 |
| Buick Encore | 2013–2026 | Gas | 2026 | 27–30 | $2,180–$2,420 |
| Buick Enclave | 2008–2027 | Gas | 2027 | 21–22 | $2,910–$3,110 |
| Buick Regal | 2000–2020 | Gas | 2020 | 22–26 | $3,020–$3,300 |
| Buick LaCrosse | 2011–2019 | Gas, Hybrid | 2019 | 23–29 | $2,280–$2,810 |
| Buick Envista | 2024–2026 | Gas | 2026 | 30 | $2,160–$2,180 |
| Buick Cascada | 2016–2019 | Gas | 2019 | 24 | $3,370 |
| Buick Verano | 2012–2017 | Gas | 2017 | 24 | $2,680 |
| Buick Century | 2000–2005 | Gas | 2005 | 21 | $3,110 |
| Buick Lacrosse/Allure | 2005–2010 | Gas | 2010 | 19–23 | $2,840–$3,440 |
| Buick LeSabre | 2000–2005 | Gas | 2005 | 21 | $3,110 |
| Buick Lucerne | 2006–2011 | Gas | 2011 | 18–21 | $3,180–$3,640 |
| Buick Park Avenue | 2000–2005 | Gas | 2005 | 20–21 | $3,110–$4,020 |
| Buick Rendezvous | 2002–2007 | Gas | 2007 | 18–19 | $3,440–$3,630 |
| Buick Rainier | 2004–2007 | Gas | 2007 | 16–17 | $3,840–$4,080 |
Show 1 more model
| Model | Model years | Powertrains | Latest MY | Combined | $/yr |
|---|---|---|---|---|---|
| Buick Terraza | 2005–2008 | Gas | 2008 | 19 | $3,440 |
Ratings and costs are for each model's latest model year; costs use the current EIA price set and 15,000 miles a year.
Buick by size class
- Small SUVs: 2
- Standard SUVs: 3
- Midsize cars: 4
- Wagons: 1
- Small cars: 2
- Large cars: 3
- Minivans: 1
Frequently asked questions
Which Buick gets the best gas mileage?
In model year 2026, the most efficient Buick is the 2026 Buick Encore at 30 MPG combined. Next is the 2026 Buick Envista at 30 MPG.
What is the cheapest Buick to fuel?
In model year 2026, the 2026 Buick Envista is the cheapest Buick to fuel: about $2,160 a year at 15,000 miles, using regular gasoline $4.36/gal (U.S. average, Sep 2026).
How many Buick models does EPA rate?
EPA lists 16 Buick models for model years 2000 to 2027. 4 of them have ratings for MY2026.
Does Buick make hybrid or electric cars?
Yes. Hybrid: 2 models.
What MPG do Buick cars get?
Combined ratings across Buick models run 22–30 MPG for MY2026, from the 2026 Buick Enclave to the 2026 Buick Encore.