Gallonly
2007 Pontiac Grand Prix base sedan
Shown: 2007 Pontiac Grand Prix base sedan. Photo: Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
  • Gas
  • Midsize cars
  • MY2000–2008

Pontiac Grand Prix MPG & Fuel Cost by Year

9 model years · 2000–2008

21 MPG
Combined
18 MPG
City
28 MPG
Highway
Annual cost · MY2008 Grand Prix 3.8L 6-cyl FWD
$3,110

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

All Pontiac models

Pontiac Grand Prix fuel economy at a glance

EPA has rated the Pontiac Grand Prix for 9 model years, 2000 to 2008. Across those years its combined rating runs 19–21 MPG. The latest model year, 2008, has 2 configurations rated 19–21 MPG combined and costing $3,110–$4,230 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2000 is the 2008 Grand Prix 3.8L 6-cyl FWD, at 21 MPG. EPA ratings go back to 1984: the earliest rating on this page is 21 MPG in 1984.

Pontiac Grand Prix MPG by year

182022 200020042008 Gas 182022 200020042008 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Pontiac Grand Prix: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2004-2008 (8th gen) Generation page
2008 19–21 $3,110–$4,230
2007 19–21 $3,110–$4,230
2006 19–21 $3,110–$4,230
2005 19–21 $3,110–$4,230
2004 19–21 $3,110–$4,230
2000-2003 (7th gen) Generation page
2003 19–21 $3,110–$4,230
2002 19–21 $3,110–$4,230
2001 20–21 $3,110–$4,020
2000 19–21 $3,110–$4,230

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.

Pontiac Grand Prix generations

2 generations between 2000 and 2008. Open one for the table of every model year and configuration.

2008 powertrain options

Gas · 3.8L, 5.3L
Combined
19–21 MPG
Per year
$3,110–$4,230
See gas configurations

Pontiac Grand Prix MPG history, 1984–1999

Pontiac Grand Prix: combined MPG range by model year, 1984–1999
YearGas (MPG)Diesel (MPG)
1999 19–21 —
1998 19–21 —
1997 19–21 —
1996 18–21 —
1995 18–20 —
1994 18–20 —
1993 18–20 —
1992 18–20 —
Show 8 more years
Pontiac Grand Prix: combined MPG range by model year, 1984–1999 (+8)
YearGas (MPG)Diesel (MPG)
199118–21—
199018–22—
198917–21—
198820–21—
198718–19—
198618–19—
198516–19—
198415–1921

EPA re-estimated the ratings of pre-2008 vehicles under its 2008 method; these are the re-estimated values.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · regular gasoline $4.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Pontiac Grand Prix's gas mileage by year?

EPA combined ratings for the Pontiac Grand Prix run 19–21 MPG across model years 2000 to 2008. The latest year, 2008, is rated 19–21 MPG.

Which Pontiac Grand Prix model year has the best gas mileage?

The 2008 Pontiac Grand Prix Grand Prix 3.8L 6-cyl FWD has the highest combined rating since 2000, at 21 MPG.

How much does a Pontiac Grand Prix cost to fuel per year?

For MY2008, EPA-rated configurations cost $3,110–$4,230 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,110.

Has the Pontiac Grand Prix's fuel economy improved over time?

Not much. The most efficient configuration is rated 21 MPG in both 2000 and 2008. Going back further, the best rating in 1984 was 21 MPG.

Which Pontiac Grand Prix model years have the same ratings?

EPA lists identical ratings as the previous year for 2003, 2007. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.

How many generations of the Pontiac Grand Prix are there?

EPA data covers 2 generations of the Pontiac Grand Prix: 2004-2008, 2000-2003. Each has its own page with a table for every model year.