- Newest year: 2005
- Gas
- Standard SUVs
2002-2005 Mercury Mountaineer MPG & Fuel Cost
4 model years · 14–16 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 4 of 10 standard SUV configurations, MY2005. Ranked against all rated configurations, not sales-weighted.
2002-2005 Mercury Mountaineer at a glance
The 2002-2005 Mercury Mountaineer covers 4 model years in the EPA database (23 configurations in all), rated 14–16 MPG combined. The newest model year, 2005, costs about $4,080 a year to fuel for its most efficient version, the Mountaineer 4.0L 6-cyl RWD (16 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2003, 2004 and 2005.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2002-2005 Mercury Mountaineer by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2005 | Gas | 14–16 MPG | $4,080–$4,670 | Ratings changed |
| 2004 | Gas | 15–16 MPG | $4,080–$4,360 | Ratings changed |
| 2003 | Gas | 15–16 MPG | $4,080–$4,360 | Ratings changed |
| 2002 | Gas | 14–16 MPG | $4,080–$4,670 | First year |
What the 2005 Mountaineer 4.0L 6-cyl RWD costs to drive
Per month
$340
$4,080 a year ÷ 12
Per 25 miles
$6.80
Per 100 miles
$27.20
Five years
$20,400
5 × the yearly cost, prices held at today's level
vs the standard SUV median
Same
Class median $4,080 a year, MY2005
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2005 Mercury Mountaineer MPG
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 stays at 16 MPG. Its annual cost stays at $4,080.
Gas configurations (7)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Mountaineer 4.0L 6-cyl RWD (Most efficient) | 4.0L 6-cyl | RWD | 14 | 19 | 16 | $4,080 |
| Mountaineer 4.6L 8-cyl RWD | 4.6L 8-cyl | RWD | 13 | 18 | 15 | $4,360 |
| FFV 4.0L 6-cyl RWD | 4.0L 6-cyl | RWD | 13 | 19 | 15 | $4,360 |
| Mountaineer 4.0L 6-cyl 2-Wheel Drive | 4.0L 6-cyl | 2-Wheel Drive | 13 | 19 | 15 | $4,360 |
| Mountaineer 4.0L 6-cyl 4WD | 4.0L 6-cyl | 4WD | 13 | 17 | 14 | $4,670 |
| Mountaineer 4.6L 8-cyl 4WD | 4.6L 8-cyl | 4WD | 13 | 17 | 14 | $4,670 |
| FFV 4.0L 6-cyl 4WD | 4.0L 6-cyl | 4WD | 13 | 17 | 14 | $4,670 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2004 Mercury Mountaineer MPG
15–16 MPG · $4,080–$4,360/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 16 MPG. Its annual cost stays at $4,080.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FFV 4.0L 6-cyl RWD (Most efficient) | 4.0L 6-cyl | RWD | 14 | 20 | 16 | $4,080 |
| Mountaineer 4.0L 6-cyl RWD | 4.0L 6-cyl | RWD | 14 | 19 | 16 | $4,080 |
| Mountaineer 4.6L 8-cyl RWD | 4.6L 8-cyl | RWD | 13 | 18 | 15 | $4,360 |
| Mountaineer 4.6L 8-cyl 4WD | 4.6L 8-cyl | 4WD | 13 | 18 | 15 | $4,360 |
| FFV 4.0L 6-cyl 4WD | 4.0L 6-cyl | 4WD | 13 | 18 | 15 | $4,360 |
| Mountaineer 4.0L 6-cyl 4WD | 4.0L 6-cyl | 4WD | 14 | 18 | 15 | $4,360 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2003 Mercury Mountaineer MPG
15–16 MPG · $4,080–$4,360/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2002: The most efficient configuration stays at 16 MPG. Its annual cost stays at $4,080.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FFV 4.0L 6-cyl 4WD (Most efficient) | 4.0L 6-cyl | 4WD | 14 | 19 | 16 | $4,080 |
| FFV 4.0L 6-cyl RWD | 4.0L 6-cyl | RWD | 14 | 19 | 16 | $4,080 |
| Mountaineer 4.6L 8-cyl RWD | 4.6L 8-cyl | RWD | 13 | 18 | 15 | $4,360 |
| Mountaineer 4.6L 8-cyl 4WD | 4.6L 8-cyl | 4WD | 13 | 18 | 15 | $4,360 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2002 Mercury Mountaineer MPG
14–16 MPG · $4,080–$4,670/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Mountaineer 4.0L 6-cyl RWD (Most efficient) | 4.0L 6-cyl | RWD | 14 | 19 | 16 | $4,080 |
| FFV 4.0L 6-cyl RWD | 4.0L 6-cyl | RWD | 14 | 19 | 16 | $4,080 |
| Mountaineer 4.6L 8-cyl RWD | 4.6L 8-cyl | RWD | 13 | 18 | 15 | $4,360 |
| Mountaineer 4.0L 6-cyl 4WD | 4.0L 6-cyl | 4WD | 13 | 18 | 15 | $4,360 |
| FFV 4.0L 6-cyl 4WD | 4.0L 6-cyl | 4WD | 13 | 18 | 15 | $4,360 |
| Mountaineer 4.6L 8-cyl 4WD | 4.6L 8-cyl | 4WD | 12 | 17 | 14 | $4,670 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
Fuel cost by state
Yearly cost of the Mountaineer 4.0L 6-cyl RWD: $5,550 in California and $3,560 in Texas, a $1,990 difference.
- California $5,550
- Washington $5,150
- New York $4,080
- Florida $3,860
- Texas $3,560
Similar cars
Closest combined MPG among MY2005 standard SUV models.
Generations
- 2000-2001 (1st gen)
- 2002-2005 (2nd gen)
- 2006-2010 (U251)
Frequently asked questions
What gas mileage does the 2002-2005 Mercury Mountaineer get?
EPA rates the 2002-2005 Mercury Mountaineer at 14–16 MPG combined across 23 configurations and 4 model years. The most efficient version, the 2005 Mountaineer 4.0L 6-cyl RWD, is rated 16 MPG (14 city, 19 highway).
Which years had the best MPG in the 2002-2005 Mercury Mountaineer?
Every model year of the 2002-2005 Mercury Mountaineer tops out at 16 MPG combined, so no year is better than another.
Did EPA ratings change during the 2002-2005 Mercury Mountaineer?
Yes. Ratings changed in 2003, 2004 and 2005.
How does the 2002-2005 Mercury Mountaineer compare with the previous generation?
The previous generation (2000-2001 Mercury Mountaineer) is rated 15–17 MPG combined and costs $3,840–$4,360 a year to fuel; the 2002-2005 model is rated 14–16 MPG and costs $4,080–$4,670 a year.
How much does it cost to fuel a 2005 Mercury Mountaineer per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Mountaineer 4.0L 6-cyl RWD costs about $4,080 a year. Across all 7 configurations the cost runs $4,080–$4,670 a year. That is a $590 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2005 Mercury Mountaineer 100 miles?
About $27.20 per 100 miles for the Mountaineer 4.0L 6-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $27.20 and $31.13 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2005 Mercury Mountaineer more efficient in the city or on the highway?
The Mountaineer 4.0L 6-cyl RWD is rated 14 city and 19 highway MPG, so it is more efficient on the highway, by 5 MPG.
How does the 2005 Mercury Mountaineer compare with other standard SUV configurations?
The Mountaineer 4.0L 6-cyl RWD costs about $4,080 a year to fuel, the same as the class median of $4,080, and less than 4 of 10 standard SUV configurations. The comparison covers all 287 rated standard SUV configurations for MY2005, not weighted by sales.
Is the 2005 Mercury Mountaineer different from the 2004 model?
The most efficient configuration stays at 16 MPG. Its annual cost stays at $4,080. EPA lists 7 configurations for 2005 against 6 configurations for 2004. See the 2004 Mercury Mountaineer for that year.