Average Affidabilità

Checklist di ispezione pre-acquisto per 2018 Subaru WRX STI

4th Generation (VA) · 2.5L turbocharged 4-cylinder EJ257 (305hp) · $24,000 - $33,000

Problemi noti — 2018 Subaru WRX STI

CRITICAL

EJ257 ring land failure under high boost — very common on modified or track cars

CRITICAL

Ring land damage from E85 or aggressive tune without supporting mods

MODERATE

Transmission gear grind — 5th and 6th gear synchro wear

MODERATE

DCCD center differential wear with aggressive use

MODERATE

Oil cooling issues at high ambient temperatures on track

Cosa controllare

  • Check for engine mods and boosted tune — ring land failure risk increases
  • Test all gears for synchronizer grind — especially 5th/6th
  • Check compression on all cylinders if modified
  • Inspect DCCD differential fluid condition
  • Verify oil change history is impeccable

Costi di Manutenzione Previsti

Intervento Intervallo Costo
Oil change (EJ257) every 3,000-5,000 miles $60-$100
Transmission fluid every 20,000 miles $100-$180
Differential fluid (front/rear/center) every 20,000 miles $150-$250
Spark plugs (NGK) every 30,000 miles $80-$150
Coolant flush every 30,000 miles $100-$160
Brake pads (front) every 15,000-30,000 miles $150-$300

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