Kia Optima: Recommended LubricantsTo 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 improved fuel economy.
Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s time, they can offer significant cost and energy savings.
These lubricants and fluids are recommended for use in your vehicle.

*1) Refer to the recommended SAE viscosity numbers on this page.
Recommended SAE Viscosity NumberInspection
1.
Rack bar
A.
Check the rack gear for
damage.
B.
Check the rack bar for
bend and deformation.
2.
...
Windshield Deicer. Repair procedures
Inspection
1.
Remove the cowl top cover. (Refer
to the wiper)
2.
Disconnect the windshield deicer
connector (A) from the wiper motor linkage.
3. ...
Noise and smoke
When the air bags inflate, they make a loud noise and they leave smoke and powder
in the air inside of the vehicle. This is normal and is a result of the ignition
of the air bag inflator. After th ...