Pontiac Grand Prix MPG

Its best-rated version reaches 22 MPG combined in 1990. Its weakest year peaked at 19 MPG (1985–1987).

lowest to best versionbest versionmedian of its classengine list turned over

714.3 gal

a year at 15,000 miles for the best 2008 version. Put it next to its 1984 predecessor, at your own mileage.

The Pontiac Grand Prix has EPA ratings for 25 model years, 1984–2008, every one of them among midsize cars. Of the 991 car nameplates on this site, few have had a diesel version (60 of them); this one has.

Among 48 midsize cars, 2008

The Grand Prix placed 23rd (tied). The class leader was the Toyota Prius at 46 MPG. The next higher rating, 22 MPG, is shared by three nameplates.

The Grand Prix, five years at a time

Average rating of its best version per span, placed among midsize cars.

1984–8823rd of 36

1989–9315th of 41

1994–9816th of 33

1999–0317th of 45

2004–0822nd of 44

Where the engine list turned over

1988
New: 2.8-liter 6-cylinder. Best rating 19 → 21 MPG.
1990
New: 2.3-liter 4-cylinder. Best rating 21 → 22 MPG.
1997
New: 3.8-liter 6-cylinder. Best rating 21 → 21 MPG.

Powertrains under the name

Diesel
Rated in 1984.
Gasoline
Rated in 1984–2008.

All 25 model years, best and lowest version

Model years	Best version	Combined	City / hwy	Lowest version	Versions
2008	Grand Prix	21	18 / 28	19	2
2006–2007	Grand Prix	21	18 / 28	19	4
2005	Grand Prix	21	18 / 27	19	4
2004	Grand Prix	21	18 / 28	19	3
2002–2003	Grand Prix	21	18 / 27	19	3
2001	Grand Prix	21	18 / 28	20	3
2000	Grand Prix	21	18 / 27	19	3
1998–1999	Grand Prix	21	17 / 27	19	3
1997	Grand Prix	21	18 / 27	19	3
1996	Grand Prix	21	18 / 26	18	2
1994–1995	Grand Prix	20	17 / 26	18	2
1993	Grand Prix	20	17 / 27	18	4
1992	Grand Prix	20	17 / 26	18	4
1991	Grand Prix	21	19 / 28	18	4
1990	Grand Prix	22	19 / 27	18	5
1989	Grand Prix	21	18 / 28	17	4
1988	Grand Prix	21	18 / 26	20	2
1987	Grand Prix	19	17 / 24	18	4
1986	Grand Prix	19	16 / 24	18	4
1985	Grand Prix	19	17 / 22	16	6
1984	Grand Prix diesel	21	18 / 27	15	8

Version names in the EPA list: Grand Prix, Grand Prix Ste Turbo, Grand Prix Turbo.

Same class, 2008

Toyota Prius46 MPG Nissan Maxima21 MPG Saab 9-521 MPG Bentley Arnage11 MPG