The type of oil that needs to be uses in the 2006 Kia Optima iS5W-20 and 5W-30 in all temperatures and the capacity iS4.4 quarts with a filter for the 2.4 L 4Cylinder engine. The type that is used in the 2.7 L V6 engine iS5W-20 and 5W-30 in all temperatures and the capacity iS5.1 quarts with a filter. The oil in the Optima should be changed every 5,000 miles. The cost per quart is around $8 to $10 or around $35 or $44 to fill up the 4.4 quarts or around $41 to $51 to fill up the 5.1 quarts. The cost of an oil change if taken to a mechanic is around $20 to $40 in labor costs.
John A.
January 2, 2020
The 2006 Kia Optima with its base 2.4L inline-4 DOHC engine, takes 4.4 quarts of oil. Kia has a list of oils for this base engine based on local weather conditions: 5W20 or 5W30 for most temperatures 10W30 for temperatures above -4 F 15W40 above 5 F and 20W50 above 14 F. The 2.4L inline-4 (engine code [6] 2359cc Q) requires 4.5 quarts of 5W20 or 5W30 oil. 2.7L V6 DOHC option needs 5.1 quarts. The 2.7L V6 (engine code [8] 2656 cc 8) uses 5.1 quarts. All of the engine oil variants are based on synthetic formulated oil.
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