2004 Mitsubishi Diamante Sedan
18MPG
Combined
2
Trims
Updated February 27, 2026
Looking at the 2004 Mitsubishi Diamante Sedan? This Sedan offers 18 combined MPG and comes with 2 available configurations. We break down the specs, safety data, and how it compares to the competition.
2004 Mitsubishi Diamante Sedan Specifications
| Spec | Value |
|---|---|
| Combined MPG | 18 combined MPG |
| City MPG | 15 |
| Highway MPG | 23 |
| Body Style | Sedan |
| Fuel Type | Premium |
| Drive | FWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 15/23/18 | 3.5L 6cyl | Automatic 4-spd |
| 6 cyl | 15/23/18 | 3.5L 6cyl | Automatic (S4) |
Annual Fuel Cost
Based on EPA estimates, the 2004 Mitsubishi Diamante Sedan costs approximately $3,250 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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Other Model Years
- 2005 Mitsubishi Diamante Sedan
- 2004 (this page)
- 2003 Mitsubishi Diamante Sedan
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