MPG by Model

MakesPontiacBonneville

Pontiac Bonneville MPG

Its best-rated version reaches 21 MPG combined in 1984, 1996 and 2002–2005. Its weakest year peaked at 19 MPG (1985–1987, 1989–1990 and 1992).

Pontiac Bonneville: best and lowest EPA combined MPG of its versions, model years 1984–200510152025MPG19871984199019952000200521 MPG peaklowest peak 19Pontiac Bonneville: best and lowest EPA combined MPG by model year10152025MPG19841986198819901992199419961998200020022005peak 21
lowest to best versionbest versionmedian of its classengine list turned over
714.3 gal

a year at 15,000 miles for the best 2005 version. Put it next to its 1984 predecessor, at your own mileage.

Compare in gallons

The Pontiac Bonneville has EPA ratings for 22 model years, 1984–2005, most often among large cars. Its best version had the highest combined rating among large cars in 1991 and 1996, and it placed in its class top five in 14 model years. In 1996 it shared first place among 24 large cars with the Buick Park Avenue and the Oldsmobile Eighty-Eight.

Averaged over 1989–1993, the best version of the Bonneville placed fifth of 17 among large cars rated at least three years in that span. Of the 991 car nameplates on this site, few have had a diesel version (60 of them); this one has.

Among 32 large cars, 2005

The Bonneville placed fourth (tied). The class leader was the Chevrolet Malibu at 23 MPG. The next higher rating, 22 MPG, is shared by two nameplates.

Best EPA combined MPG of each of the 32 large cars rated for 2005101520Bonneville 21median 19MalibuBest EPA combined MPG of each of the 32 large cars rated for 2005101520Bonneville 21median 19

The Bonneville, five years at a time

Average rating of its best version per span, placed in the class it sat in most often.

1984–8824th of 36midsize cars
1989–93fifth of 17large cars
1994–98eighth of 21large cars
1999–03seventh of 19large cars

Where the engine list turned over

  • 1987

    Dropped: 4.3-liter 6-cylinder, 5.0-liter 8-cylinder. Best rating 19 → 19 MPG.

Powertrains under the name

  • Diesel

    Rated in 1984.

  • Gasoline

    Rated in 1984–2005.

All 22 model years, best and lowest version
Model yearsBest versionCombinedCity / hwyLowest versionVersions
2005Bonneville2118 / 27182
2004Bonneville2118 / 27183
2002–2003Bonneville2117 / 27192
2001Bonneville2017 / 27202
2000Bonneville2017 / 27192
1999Bonneville2017 / 25192
1997–1998Bonneville2017 / 26192
1996Bonneville2117 / 27182
1993–1995Bonneville2017 / 26182
1992Bonneville1916 / 26172
1991Bonneville2017 / 26201
1990Bonneville1916 / 25191
1989Bonneville1916 / 26191
1988Bonneville2017 / 26201
1987Bonneville1916 / 25191
1986Bonneville1916 / 24184
1985Bonneville1917 / 22165
1984Bonneville diesel2118 / 27158

Same class, 2005

Chevrolet Malibu23 MPGMercury Montego21 MPGFord Taurus20 MPGBentley Arnage11 MPG

Read next: How EPA MPG ratings changed from 1984 to 2026 · How to read this page