Kia Optima
Kia Optima

See also:
Rear differential (4WD)
Checking or changing rear differential
fluid
Have rear differential fluid checked or
changed by an Authorized Kia
Dealer according to the Maintenance
Schedule at the beginning of this
section.
...
Engine oil and oil filter
Checking the engine oil level
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 min ...
Four wheel drive (4WD)
Engine power can be delivered to all
front and rear wheels for maximum
traction. Full-time 4WD is useful
when extra traction is required on
road, such as, when driving on slippery,
muddy, wet, ...