Thank you !I would imagine the new stuff meets Hyundai's specs. They are pretty broad. But even if it was high in zinc. one oil change would not do harm. It's long term and if you are burning oil.
I've had great luck with 0w40 M1 European formula. Clean as can be at +100k last year when I did the timing chain.
I've had an oil test done on 5w30 M1 before and after a race day + 400 miles. It came back with a fuel dilution note but they said it was OK to keep using. I change it at 5K then and now. Been using the 0w40 for the last 7 or 8 years.