Kia Optima: Maintenance / Engine oil

Kia Optima DL3 2019-2021 Owner's Manual / Maintenance / Engine oil

Checking the engine oil level

■ THETA 2.4L - GDI

1. Be sure the vehicle is on level ground.

2. Start the engine and allow it to reach normal operating temperature.

3. Turn the engine off and wait for a few minutes (about 5 minutes) for the oil to return to the oil pan.

4. Pull the dipstick out, wipe it clean, and reinsert it fully.

WARNING - Radiator hose

Be very careful not to touch the radiator hose when checking or adding the engine oil as it may be hot enough to burn you.

5. Pull the dipstick out again and check the level. The level should be between F and L.

CAUTION - Replacing engine oil

Do not overfill the engine oil. It may damage the engine.

■ THETA 2.4L - GDI

If it is near or at L, add enough oil to bring the level to F. Do not overfill.

Use a funnel to help prevent oil from being spilled on engine components.

Use only the specified engine oil. (Refer to “Recommended lubricants and capacities” in chapter 8.)

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 chapter.

WARNING - Used engine oil

Used engine oil may cause irritation or cancer of the skin if left in contact with the skin for prolonged periods of time. Always protect your skin by washing your hands thoroughly with soap and warm water as soon as possible after handling used oil.

Checking fluid levels
When checking engine oil, engine coolant, brake fluid, and washer fluid, always be sure to clean the area around any filler plug, drain plug, or dipstick before checking or draining any lubricant ...

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 ...

Other information:

Kia Optima DL3 2019-2021 Owner's Manual: MAX A/C selection


The MAX A/C mode is used to cool the inside of the vehicle faster. Air flow is directed toward the upper body and face. In this mode, the air conditioning and the recirculated air position will be selected automatically. Instrument panel vents The outlet vents can be opened or closed separ ...

Kia Optima DL3 2019-2021 Owner's Manual: LCD Display Control


■ Type A ■ Type B The LCD display modes can be changed by using the control buttons on the steering wheel. (1) : MODE button for changing the LCD MODES (2) : MOVE scroll switch for selecting the items (3) OK : SET/RESET button for setting the items or resetting the items ❈ For ...

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