2021 Hyundai Sonata
90,000 mile service checklist
Here's exactly what your factory maintenance schedule calls for at this mileage — and what each item typically costs.
90,000 mile service
- Engine oil and filter change
- Tire rotation
- Replace spark plugs — iridium (factory interval ~90,000 mi)
- Replace engine coolant — Hyundai Long Life Coolant
- Inspect timing chain and tensioner — the 2.5L and 1.6L Turbo Smartstream engines are chain-driven, not belt-driven; no scheduled chain replacement
- Inspect drive belt for cracking or glazing