97,500 miles (156,000 km) or 78 months
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Scheduled maintenance service / 97,500 miles (156,000 km) or 78 months
❑ Inspect air cleaner filter ❑ Inspect vacuum hose ❑ Replace engine oil and filter (97,500 miles (156,000 km) or 156 months)
See also:
Exhaust pipe and muffler
Visually inspect the exhaust pipes, muffler and hangers for cracks, deterioration,
or damage. Start the engine and listen carefully for any exhaust gas leakage. Tighten
connections or replace part ...
Use of MTBE
HYUNDAI recommends avoiding fuels containing MTBE (Methyl Tertiary Butyl Ether)
over 15.0% vol. (Oxygen Content 2.7% weight) in your vehicle.
Fuel containing MTBE over 15.0% vol. (Oxygen Content 2. ...


