Originally Posted by bullwinkle
And to the OP-you won't go wrong with 5W20 or 5W30-they're both pretty much synthetic blends these days from the majors, and both could handle even FL heat easily for 5K. Remember to keep your oil receipts, you're still under Kia drivetrain warranty until 100K-and I would use whatever they recommend to cover your [gluteus maximus]!
Where in the Hyundai's sales contract or anywhere does it says you have to keep oil receipts to maintain warranty? That can't be used on you in the USA with the M-M W Act, but many horror stories about Hyundai Canada. All you have to do is pull the valve cover and the story is told. I have zero worries, I change out my oil around 3,500 in the summer and 3,000 in the Minnesota short tripping winters. At 80,000 if I still own my Hyundai you will be able to eat rice from my cylinder head valve train. They still tried that on me with my tanked Elantra GT with 14,000 miles, I told them you don't need receipts, all you need to do is look at the valve train, after that nothing was said and I received a new long block even with a Fram Ultra on it. They commented on the oil filter, that they had to stick theirs on to test it, I said fine.