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 NumberCompressor. Components and Components Location
Components
1. Screw
2. Bolt
3. Disc & Hub Assembly
4. Retainer Ring
5. Pulley
6. Connector Bracket
7. Screw
8. Compressor Assembly
...
Inspection
Battery Diagnostic Flow
Vehicle parasitic current inspection
1.
Turn the all electric devices OFF, and then turn
the ignition switch OFF.
2.
Close ...
Power Windows
The ignition switch must be in the ON position for power windows to operate.
Each door has a power window switch that controls that door’s window. However, the
driver has a power window switch w ...