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The Hyundai Sonata requires SAE 5w-30 full synthetic oil with a capacity of 5.1 quarts. The oil serves to lubricate internal engine parts and eliminate dirt, sludge, and impurities to maintain smooth vehicle operation. An oil change for your Sonata typically costs between $50 and $60 for labor and between $80 and $90 for parts. It is recommended to schedule an oil change every 3,000 to 5,000 miles. Signs while driving that may indicate the need for an oil change include engine noise, a ticking engine, transmission shifting issues, idling shakes, and decreased fuel efficiency. External indications that you may need an oil change include unusual smoke from the exhaust and oil leaks in your parked spot.
You should go for synthetic oil when it comes to your vehicle. Don't try to cut corners by choosing conventional oil, or you won't get the best performance when it matters most.
Hyundai suggests using fully synthetic oil with a viscosity of either SAE 5W-30 or 5W-40 in their Sonata models.