what type of oil should be used with the 2013 Hyundai Sonata?
I would use Mobil One Extended Performance.
Manufacturer suggests 5w-20. It does not state which brand name to use. As long as you change your oil regularly, I suggest at least every 5000 miles, this will maintain the integrity of your warranty. It's the least expensive thing you can do for your car. Remember to keep oil change receipts for your records.
Owner's manual indicates 5w-20. 5w-30, or 10w-30. Use 10w-30 if the car is driven in more milder climates; 5w-30 if temps will be lower than freezing..
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