See also:

Change to "winter weight" oil if necessary
In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you s ...

Gasolines for Cleaner Air
To help contribute to cleaner air, Hyundai recommends you use gasolines treated with detergent additives, which help prevent deposit formation in the engine. These gasolines will help the engine r ...

Emission control system
Your Hyundai is equipped with an emission control system to meet all requirements of the U.S. Environmental Protection Agency or California Air Resources Board. There are three emission control sy ...