AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2003 Infiniti Fx
Overall rating NHTSA-grounded
Above average
Estimated 5-year repair + maintenance cost: $3,000–$5,000
The 2003 Infiniti FX shows minimal issues based on owner complaints and recalls. With only a single complaint related to the fuel system, this indicates a strong reliability record, suggesting low maintenance concerns and costs.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel system | 100,000–130,000 miles | $500–$1,000 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil change every 5,000 miles
- Brake fluid replacement every 30,000 miles
- Coolant change every 60,000 miles
- Transmission fluid check annually
- Cabin air filter replacement yearly
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Fuel odor inside cabin
- Reduced fuel efficiency
- Engine stalling when idling
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.