Buick Terraza MPG by Year & Engine (EPA)

EPA fuel-economy ratings for every rated Buick Terraza model year from 2005 to 2008 — each engine and transmission with its official city, highway and combined figures. Over these years the Terraza has been offered with 3.9L 6-cyl, 3.5L 6-cyl engines; the most efficient version is the 2008 (up to 19 MPG combined). All rated gas versions run on regular gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.

Buick Terraza fuel economy by year

YearCombinedEnginesMedian used priceFor sale
2008 19 MPG 3.9L 6-cyl
2007 19 MPG 3.9L 6-cyl
2006 17–19 MPG 3.9L 6-cyl, 3.5L 6-cyl
2005 17–18 MPG 3.5L 6-cyl

2008 Buick Terraza: engines & MPG

The 2008 Terraza was EPA-rated in 1 version (3.9L 6-cyl), with combined economy of 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Terraza FWD 3.9L 6-cyl Automatic 4-spd Regular 16 23 19 MPG

2007 Buick Terraza: engines & MPG

The 2007 Terraza was EPA-rated in 1 version (3.9L 6-cyl), with combined economy of 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Terraza FWD 3.9L 6-cyl Automatic 4-spd Regular 16 23 19 MPG

2006 Buick Terraza: engines & MPG

The 2006 Terraza was EPA-rated in 3 versions (3.9L 6-cyl, 3.5L 6-cyl), with combined economy from 17 to 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Terraza FWD 3.9L 6-cyl Automatic 4-spd Regular 16 23 19 MPG
Terraza FWD 3.5L 6-cyl Automatic 4-spd Regular 16 23 19 MPG
Terraza AWD 3.5L 6-cyl Automatic 4-spd Regular 15 21 17 MPG

2005 Buick Terraza: engines & MPG

The 2005 Terraza was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 17 to 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Terraza FWD 3.5L 6-cyl Automatic 4-spd Regular 16 23 18 MPG
Terraza AWD 3.5L 6-cyl Automatic 4-spd Regular 15 21 17 MPG

Frequently asked questions

What MPG does a Buick Terraza get?

Depending on year and engine, EPA combined ratings for the Terraza range from 18 to 19 MPG. The most efficient rated version is the 2008 model year.

What engines does the 2008 Buick Terraza have?

The 2008 Terraza was EPA-rated with 3.9L 6-cyl engines — see the 2008 table above for each version's exact city/highway figures.

Does the Buick Terraza require premium gas?

No — rated versions run on regular gasoline.

About this data: EPA ratings from the official U.S. DOE/EPA dataset (fueleconomy.gov), as of July 2026; refreshed monthly. Market prices and listing counts are live medians from VehiSales inventory, updated daily. How to cite: “VehiSales Research, Buick Terraza EPA Fuel Economy by Model Year” with a link to https://vehisales.com/research/fuel-economy/buick/terraza.

See also: Buick Terraza hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].

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