We brought in our 2017 Base with 8,000 miles for its first service at the dealer in April. No charge for an oil change and inspection. I noticed they recommend 5,000 mile oil changes on all 2013 post Kias and that they used Mobil 1 5W-30 synthetic. The manual makes no note of synthetic vs. conventional and also recommends 7,500 mile services. I wonder if Kia has changed their recommendations or this is just my dealer's.