Lubricant specifications

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 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.


*1 Refer to the recommended SAE viscosity numbers.

*2 If the API service SM engine oil is not available in your country, you are able to
use API service SL.

Recommended SAE viscosity number

NOTICE
Always be sure to clean the area around any filler plug, drain plug, or dipstick before checking or draining any lubricant.

This is especially important in dusty or sandy areas and when the vehicle is used on unpaved roads. Cleaning the plug and dipstick areas will prevent dirt and grit from entering the engine and other mechanisms that could be damaged.

Engine oil viscosity (thickness) has an effect on fuel economy and cold weather operating (starting and oil flow). Lower viscosity engine oils can provide better fuel economy and cold weather performance, however, higher viscosity engine oils are required for satisfactory lubrication in hot weather. Using oils of any viscosity other than those recommended could result in engine damage.

When choosing an oil, consider the range of temperature your vehicle will be operated in before the next oil change. Proceed to select the recommended oil viscosity from the chart.

*1. For better fuel economy, it is recommended to use the engine oil of a


*1. For better fuel economy, it is recommended to use the engine oil of a viscosity
grade SAE 5W-20 (API SM / ILSAC GF-4).

    See also:

    ISG (Idle Stop & Go) available for three engines
    In addition to using the latest technologies to enhance the efficiencies of each engine, Kia is offering its fuel-stretching ISG (Idle Stop & Go) system - which automatically switches off and ...

    Appearance care
    Exterior care Exterior general caution It is very important to follow the label directions when using any chemical cleaner or polish. Read all warning and caution statements that appear on the l ...

    Roomy New Interior
    However, the Optima's quiet new interior is more upscale and will accommodate four tall adults, or five in a pinch. Front seats are supportive, and the rear-seat area is impressively roomy—alt ...