Kia Optima: Specifications & Consumer information / Recommended lubricants and capacities

Kia Optima DL3 2019-2023 Owner's Manual / Specifications & Consumer information / Recommended lubricants and capacities

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. These lubricants and fluids are recommended for use in your vehicle.

Recommended SAE viscosity number

Engine oil viscosity (thickness) has an effect on fuel economy and cold weather operating (engine start and engine oil flowability). 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.

An engine oil displaying this API Certification Mark conforms to the international Lubricant Specification Advisory Committee (ILSAC). It is recommended to only use engine oils that uphold this API Certification Mark.

Air conditioning system
We recommend that you contact an authorized Kia dealer for more details. ...

Vehicle identification number (VIN)
■ Frame number The vehicle identification number (VIN) is the number used in registering your vehicle and in all legal matters pertaining to its ownership, etc. The number is punched on the fr ...

Other information:

Kia Optima DL3 2019-2023 Service and Repair Manual: Evaporative Emission Control System


Description and operation Description Evaporative Emission Control System prevents fuel vapor stored in fuel tank from vaporizing into the atmosphere. When the fuel evaporates in the fuel tank, the vapor passes through vent hoses or tubes to canister filled with charcoal. The canis ...

Kia Optima DL3 2019-2023 Service and Repair Manual: Engine Mounting


Components and components location Components 1. Transaxle mounting bracket 2. Roll rod bracket 3. Engine mounting bracket 4. Engine mounting support bracket Repair procedures Removal and Installation Engine Mounting ...

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