- Gas
- Minivans
- MY2005–2008
Buick Terraza MPG & Fuel Cost by Year
4 model years · 2005–2008
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Buick Terraza fuel economy at a glance
EPA has rated the Buick Terraza for 4 model years, 2005 to 2008. Across those years its combined rating runs 17–19 MPG. The latest model year, 2008, has 1 configuration rated 19 MPG combined and costing $3,440 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2005 is the 2008 Terraza 3.9L 6-cyl FWD, at 19 MPG.
Buick Terraza MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2008 Generation page | ||
| 2008 | 19 | $3,440 |
| 2005-2007 (2005) Generation page | ||
| 2007 | 19 | $3,440 |
| 2006 | 17–19 | $3,440–$3,840 |
| 2005 | 17–18 | $3,630–$3,840 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Buick Terraza generations
2 generations between 2005 and 2008. Open one for the table of every model year and configuration.
2008 powertrain options
More Buick models
Frequently asked questions
What is the Buick Terraza's gas mileage by year?
EPA combined ratings for the Buick Terraza run 17–19 MPG across model years 2005 to 2008. The latest year, 2008, is rated 19 MPG.
Which Buick Terraza model year has the best gas mileage?
The 2008 Buick Terraza Terraza 3.9L 6-cyl FWD has the highest combined rating since 2005, at 19 MPG.
How much does a Buick Terraza cost to fuel per year?
For MY2008, EPA-rated configurations cost $3,440 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,440.
Has the Buick Terraza's fuel economy improved over time?
Yes. The most efficient configuration moved from 18 MPG in 2005 to 19 MPG in 2008, 1 MPG more.