Kia Optima: Engine coolant - Maintenance - Kia Optima TF 2011-2021 Owners ManualKia Optima: Engine coolant

The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory.

Check the antifreeze protection and coolant level at least once a year, at the beginning of the winter season, and before traveling to a colder climate.

Changing the engine oil and filter
Have engine oil and filter changed by an authorized Kia dealer according to the Maintenance Schedule at the beginning of this section. WARNING Used engine oil may cause irritation or cancer ...

Checking the coolant level
WARNING Removing radiator cap Never attempt to remove the radiator cap while the engine is operating or hot. Doing so might lead to cooling system and engine damage. Also, hot ...

See also:

Components and Components Location
Component Location 1. Audio unit2. Midrange speaker3. Glass antenna (AM/FM)4. Front door speaker5. Rear door speaker6. Antenna feeder cable7. Feeder cable joint connector8. Multimedia jack9. Roof ...

Lubricants
Item  Specified lubricant  Quantity Transaxle fluid  SK ATF SP-Ⅳ, MICHANG ATF SP-Ⅳ, NOCA ATF SP-Ⅳ, Kia Genui ...

Recommended Lubricants
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct lubricants also help promote engine efficiency that results in impro ...

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