2004 Mercury Mountaineer
6 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Mountaineer 2WD | 13 | 18 | 15 | Regular Gasoline | Rear-Wheel Drive | 4.6L 8-cyl | Automatic 5-spd |
| Mountaineer 2WD | 14 | 19 | 16 | Regular Gasoline | Rear-Wheel Drive | 4L 6-cyl | Automatic 5-spd |
| Mountaineer 2WD FFV | 14 | 20 | 16 | Regular Gasoline | Rear-Wheel Drive | 4L 6-cyl | Automatic 5-spd |
| Mountaineer 4WD | 14 | 18 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4L 6-cyl | Automatic 5-spd |
| Mountaineer 4WD | 13 | 18 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4.6L 8-cyl | Automatic 5-spd |
| Mountaineer 4WD FFV | 13 | 18 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4L 6-cyl | Automatic 5-spd |