See also:

Recommended Engine Coolant
When adding coolant, use only deionized water or soft water for your vehicle and never mix hard water in the coolant filled at the factory. An improper coolant mixture can result in serious malfun ...

SUPPLE RIDE, AGILE HANDLING
An advanced four-wheel independent suspension system combines a supple ride with precise handling and steering response for Hyundai Sonata GLS and Limited models. Sonata uses MacPherson strut fron ...

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 9 for recommendations. If you aren't sure what weight oil you s ...