Changing your own oil
 

I have always changed my own oil in my cars. It's not to save money, it's because I use 100% synthetic oil and that way I know without a doubt what kind of oil is used. Is there any reason that will be a problem with my warranty? I will have all other service performed by the dealer.

No, that will not affect your warranty. However, you should document the oil changes. I would suggest keeping the receipt(s) for the oil and oil filters. Buy the oil and filter on or close to the day you change the oil so the date is on the receipt. Then write the mileage on the receipt. Also, there's a TSB about non-Hyundai filters causing and engine ticking. I'd suggest using OEM Hyundai filters. They are very good quality and just as inexpensive as aftermarket filters.

Can you tell me where to buy these oil filters, or are they only available at a dealer?

Yes, the dealer or other online Hyundai parts sellers.

Thank you for your help. I'll hunt them down.

Available at any Hyundai or Kia dealer.... watch the aftermarket filters, seen them crumble already, and the o-ring for the black cap is sometimes toooo small and blow oil out of the canister all over the A/T..