AI-generated · grounded in NHTSA data

Reliability & 5-year cost of ownership — 2018 Subaru Legacy

Overall rating NHTSA-grounded

Average

Estimated 5-year repair + maintenance cost: $4,500–$7,000

The 2018 Subaru Legacy has a mixture of strengths and weaknesses. It suffers from electrical system complaints and recalls for fuel system and rearview visibility issues. Despite this, most issues are manageable and not overly frequent, making ownership costs reasonable.

Most-common failures

Part Typical mileage Cost range Frequency
Fuel pump30,000–60,000 miles$400–$800common
Electrical system20,000–50,000 miles$200–$600common
Rearview camera10,000–30,000 miles$150–$400occasional

Scheduled maintenance to budget

Routine items every owner should plan for.

  • Oil and filter change every 6,000 miles
  • Air filter replacement every 15,000 miles
  • Brake fluid replacement every 30,000 miles
  • Coolant flush every 30,000 miles
  • Transmission fluid change every 60,000 miles

Warning signs to watch for

Symptoms that signal a major upcoming repair.

  • Dimming or flickering dashboard lights
  • Delayed start or electrical glitches
  • Clicking noise when backing up
  • Unusual fuel gauge behavior

Generated by gpt-4o on 6/13/2026. Cost ranges are conservative estimates that account for typical regional variation.