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The 2004 Hyundai Sonata requires SAE 5w-30 full synthetic oil with a 4.8-quart capacity. Oil plays a crucial role in lubricating engine parts, safeguarding the emission system, and potentially improving fuel efficiency. The typical cost of an oil change for your Sonata ranges from $50 to $60 for labor and $80 to $90 for parts. It's recommended to schedule an oil change every 7,500 miles or every 5 to 6 months. Signs indicating the need for an oil change include transmission shifting problems, increased engine noise, shaking at idle, excessive exhaust, a noticeable oil odor in the car, and the activation of the Check Engine or Oil Change dashboard lights.
The 2004 Hyundai Sonata should use SAE 5W-30 full synthetic oil for optimal performance.