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The 2005 Kia Sorento uses 5W-30 oil. It's essential to replace the oil when needed, typically every 5,000 to 10,000 miles. Failing to do so can lead to engine problems. Using high-quality oil is crucial for optimal engine performance. Neglecting oil maintenance can result in engine failure, indicated by symptoms like a burning odor and reduced gas mileage causing knocking noises. Immediate attention is necessary to prevent potential catastrophic issues like engine failure.
Kia provides specific oil viscosities recommended for the engine in the 2005 Sorento, tailored to different outside temperatures. For temperatures below 14°F, it is advised to use 5W-20 oil, for temperatures below 50°F, 5W-30 oil is recommended, and for temperatures below 68°F, the suggestion is to use 5W-40 oil. In the range of -25 to 40°F, it is best to utilize 10W-30 oil, for temperatures above -13°F, the recommended options are 10W-40 or 10W-50 oil. When temperatures are above 5°F, it is advisable to use 15W-40 or 15W-50 oil, and for temperatures above 14°F, it is best to go with 20W-40 or 20W-50 oil. All the recommended viscosities are synthetic oils.