4-liter GDI (Gasoline Direct Injection) four-cylinder, producing 185 horsepower. For the 2018 models, the factory fill and recommended replacement oil should meet the API SN PLUS specification.
2018 Hyundai Sonata Oil Filter Size Guide
4 quarts, although it is always best to verify the exact amount with the vehicle's dipstick after refilling to ensure proper lubrication. This rating ensures the oil provides necessary protection against low-speed pre-ignition (LSPI), a potential issue particularly in turbocharged and direct-injection engines.
The base engine is the 2. It offers better resistance to breakdown, maintains a more consistent viscosity, and keeps the engine cleaner by reducing sludge buildup.
2018 Hyundai Sonata Oil Filter Size and Specifications
Viscosity Grade: The Numerical Code Viscosity, often referred to as the thickness of the oil, is represented by a number such as 5W-30 or 0W-20. For the 2018 Sonata, Hyundai typically suggests an oil change interval of 5,000 to 7,500 miles when using full synthetic oil.
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