Mercury Grand Marquis MPG

Its best-rated version reaches 20 MPG combined in 1992. Its weakest year peaked at 16 MPG (1984).

lowest to best versionbest versionmedian of its classengine list turned over

789.5 gal

a year at 15,000 miles for the best 2011 version, the Grand Marquis FFV. Put it next to its 1984 predecessor, at your own mileage.

Compare in gallons

The Mercury Grand Marquis has EPA ratings for 28 model years, 1984–2011, every one of them among large cars. Its best version had the highest combined rating among large cars in 1992, and it placed in its class top five in two model years. In 1992 it shared first place among 23 large cars with the Ford LTD Crown Victoria and the Lincoln Town Car. In 1985 even the most efficient version of the Grand Marquis shared the lowest rating of 20 midsize-large station wagons; it sat in its class's bottom five in 16 model years.

Its first flex-fuel version arrived in 2006, when 8 of 168 cars offered one. Averaged over 1984–1988, its best version placed fifth from the bottom of 13 among large cars rated at least three years in that span.

Among 29 large cars, 2011

The Grand Marquis placed 17th (tied). The class leader was the Hyundai Sonata at 27 MPG. The next higher rating, 20 MPG, is shared by two nameplates.

The Grand Marquis, five years at a time

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

1984–88ninth of 13

1989–9311th of 17

1994–9815th of 21

1999–0313th of 19

2004–0819th of 34

2009–1318th of 30

Where the engine list turned over

1992
New: 4.6-liter 8-cylinder. Best rating 18 → 20 MPG.

Powertrains under the name

Gasoline
Rated in 1984–2007.
Flex-fuel
Rated in 2006–2011.

All 28 model years, best and lowest version

Model years	Best version	Combined	City / hwy	Lowest version	Versions
2009–2011	Grand Marquis FFV flex-fuel	19	16 / 24	19	1
2008	Grand Marquis FFV flex-fuel	18	15 / 23	18	1
2006–2007	Grand Marquis	18	15 / 23	18	2
2005	Grand Marquis	19	16 / 23	19	1
2004	Grand Marquis	18	15 / 23	18	1
2003	Grand Marquis	18	16 / 23	18	1
2002	Grand Marquis	18	15 / 23	18	1
2000–2001	Grand Marquis	18	16 / 23	18	1
1998–1999	Grand Marquis	18	15 / 22	18	1
1995–1997	Grand Marquis	18	15 / 23	18	1
1994	Grand Marquis	18	16 / 23	18	1
1993	Grand Marquis	19	16 / 24	19	1
1992	Grand Marquis	20	17 / 24	19	2
1988–1991	Grand Marquis	18	15 / 22	18	2
1986–1987	Grand Marquis	19	16 / 24	19	2
1985	Grand Marquis	17	14 / 22	17	2
1984	Grand Marquis	16	14 / 20	15	4

Version names in the EPA list: Grand Marquis, Grand Marquis FFV, Grand Marquis Wagon.

Same class, 2011

Hyundai Sonata27 MPG Lincoln Town Car19 MPG Cadillac DTS18 MPG Maybach 6212 MPG