- Newest year: 2011
- Gas
- Large cars
2003-2011 Mercury Grand Marquis MPG & Fuel Cost
9 model years · 18–19 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 7 of 10 large car configurations, MY2011. Ranked against all rated configurations, not sales-weighted.
2003-2011 Mercury Grand Marquis at a glance
The 2003-2011 Mercury Grand Marquis covers 9 model years in the EPA database (11 configurations in all), rated 18–19 MPG combined. The newest model year, 2011, costs about $3,500 a year to fuel for its most efficient version, the FFV 4.6L 8-cyl RWD (19 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2004, 2005, 2006, 2007, 2008, 2009 and 2011; 2010 repeat the values of the year before. The best combined rating in the generation, 19 MPG, was reached in 2005, 2009, 2010 and 2011.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2003-2011 Mercury Grand Marquis by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2011 | Gas | 19 MPG | $3,500 | Ratings changed |
| 2010 | Gas | 19 MPG | $3,440 | Same EPA ratings as 2009 |
| 2009 | Gas | 19 MPG | $3,440 | Ratings changed |
| 2008 | Gas | 18 MPG | $3,630 | Ratings changed |
| 2007 | Gas | 18 MPG | $3,630 | Ratings changed |
| 2006 | Gas | 18 MPG | $3,630 | Ratings changed |
| 2005 | Gas | 19 MPG | $3,440 | Ratings changed |
| 2004 | Gas | 18 MPG | $3,630 | Ratings changed |
| 2003 | Gas | 18 MPG | $3,630 | First year |
What the 2011 FFV 4.6L 8-cyl RWD costs to drive
Per month
$292
$3,500 a year ÷ 12
Per 25 miles
$5.83
Per 100 miles
$23.33
Five years
$17,500
5 × the yearly cost, prices held at today's level
vs the large car median
$570less a year
Class median $4,070 a year, MY2011
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2011 Mercury Grand Marquis MPG
Versus 2010: The most efficient configuration stays at 19 MPG. Its annual cost goes from $3,440 to $3,500, $60 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FFV (Most efficient) | 4.6L 8-cyl | RWD | 16 | 24 | 19 | $3,500 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2010 Mercury Grand Marquis MPG
Same EPA ratings as 2009
EPA lists the same ratings for the 2010 Mercury Grand Marquis as for the 2009 model, so the configurations and costs are the ones in the 2009 section above.See 2009
2009 Mercury Grand Marquis MPG
19 MPG · $3,440/yr
Versus 2008: The most efficient configuration moves from 18 to 19 MPG, up 1. Its annual cost goes from $3,630 to $3,440, $190 less.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FFV (Most efficient) | 4.6L 8-cyl | RWD | 16 | 24 | 19 | $3,440 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2008 Mercury Grand Marquis MPG
18 MPG · $3,630/yr
Versus 2007: The most efficient configuration stays at 18 MPG. Its annual cost stays at $3,630.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FFV (Most efficient) | 4.6L 8-cyl | RWD | 15 | 23 | 18 | $3,630 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2007 Mercury Grand Marquis MPG
18 MPG · $3,630/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration stays at 18 MPG. Its annual cost stays at $3,630.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Marquis 4.6L 8-cyl RWD Automatic 4-spd (Most efficient) | 4.6L 8-cyl | RWD | 15 | 23 | 18 | $3,630 |
| Grand Marquis 4.6L 8-cyl RWD Automatic 4-spd | 4.6L 8-cyl | RWD | 15 | 23 | 18 | $3,630 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2006 Mercury Grand Marquis MPG
18 MPG · $3,630/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2005: The most efficient configuration moves from 19 to 18 MPG, down 1. Its annual cost goes from $3,440 to $3,630, $190 more.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Marquis 4.6L 8-cyl RWD Automatic 4-spd (Most efficient) | 4.6L 8-cyl | RWD | 15 | 23 | 18 | $3,630 |
| Grand Marquis 4.6L 8-cyl RWD Automatic 4-spd | 4.6L 8-cyl | RWD | 15 | 23 | 18 | $3,630 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2005 Mercury Grand Marquis MPG
19 MPG · $3,440/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2004: The most efficient configuration moves from 18 to 19 MPG, up 1. Its annual cost goes from $3,630 to $3,440, $190 less.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Marquis (Most efficient) | 4.6L 8-cyl | RWD | 16 | 23 | 19 | $3,440 |
2004 Mercury Grand Marquis MPG
18 MPG · $3,630/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2003: The most efficient configuration stays at 18 MPG. Its annual cost stays at $3,630.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Marquis (Most efficient) | 4.6L 8-cyl | RWD | 15 | 23 | 18 | $3,630 |
2003 Mercury Grand Marquis MPG
18 MPG · $3,630/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Grand Marquis (Most efficient) | 4.6L 8-cyl | RWD | 16 | 23 | 18 | $3,630 |
Fuel cost by state
Yearly cost of the FFV 4.6L 8-cyl RWD: $4,760 in California and $3,060 in Texas, a $1,700 difference.
- California $4,760
- Washington $4,410
- New York $3,500
- Florida $3,310
- Texas $3,060
Similar cars
Closest combined MPG among MY2011 large car models.
Generations
- 2000-2002 (EN114)
- 2003-2011 (4th gen)
Frequently asked questions
What gas mileage does the 2003-2011 Mercury Grand Marquis get?
EPA rates the 2003-2011 Mercury Grand Marquis at 18–19 MPG combined across 11 configurations and 9 model years. The most efficient version, the 2011 FFV 4.6L 8-cyl RWD, is rated 19 MPG (16 city, 24 highway).
Which years had the best MPG in the 2003-2011 Mercury Grand Marquis?
The FFV 4.6L 8-cyl RWD reached the generation's best combined rating, 19 MPG, in 2005, 2009, 2010 and 2011. The lowest top rating, 18 MPG, was in 2003, 2004, 2006, 2007 and 2008.
Did EPA ratings change during the 2003-2011 Mercury Grand Marquis?
Yes. Ratings changed in 2004, 2005, 2006, 2007, 2008, 2009 and 2011. In 2010 the values repeat the year before.
How does the 2003-2011 Mercury Grand Marquis compare with the previous generation?
The previous generation (2000-2002 Mercury Grand Marquis) is rated 18 MPG combined and costs $3,630 a year to fuel; the 2003-2011 model is rated 18–19 MPG and costs $3,440–$3,630 a year.
How much does it cost to fuel a 2011 Mercury Grand Marquis per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the FFV 4.6L 8-cyl RWD costs about $3,500 a year. Across all 1 configuration the cost runs $3,500 a year.
How much does it cost to drive a 2011 Mercury Grand Marquis 100 miles?
About $23.33 per 100 miles for the FFV 4.6L 8-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2011 Mercury Grand Marquis more efficient in the city or on the highway?
The FFV 4.6L 8-cyl RWD is rated 16 city and 24 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2011 Mercury Grand Marquis compare with other large car configurations?
The FFV 4.6L 8-cyl RWD costs about $3,500 a year to fuel, $570 less than the class median of $4,070, and less than 7 of 10 large car configurations. The comparison covers all 74 rated large car configurations for MY2011, not weighted by sales.
Is the 2011 Mercury Grand Marquis different from the 2010 model?
The most efficient configuration stays at 19 MPG. Its annual cost goes from $3,440 to $3,500, $60 more. EPA lists 1 configuration for 2011 against 1 configuration for 2010. See the 2010 Mercury Grand Marquis for that year.