2003 Infiniti G35
20MPG
Combined
3
Trims
2003
2004 →
Updated February 27, 2026
Looking at the 2003 Infiniti G35? This Compact Sedan offers 19–20 combined MPG depending on trim and comes with 3 available configurations. We break down the specs, safety data, and how it compares to the competition.
2003 Infiniti G35 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 19–20 combined MPG depending on trim |
| City MPG | 17 |
| Highway MPG | 24 |
| Body Style | Compact Sedan |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 3 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Man | 17/24/20 | 3.5L 6cyl | Manual 6-spd |
| 6 cyl | 17/24/19 | 3.5L 6cyl | Automatic (S5) |
| 6 cyl | 17/24/19 | 3.5L 6cyl | Automatic (S5) |
Annual Fuel Cost
Based on EPA estimates, the 2003 Infiniti G35 costs approximately $2,750 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2003 Infiniti G35
See how it stacks up against similar vehicles:
Other Model Years
- 2008 Infiniti G35
- 2007 Infiniti G35
- 2006 Infiniti G35
- 2005 Infiniti G35
- 2004 Infiniti G35
- 2003 (this page)
Check Vehicle History
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