Yes I did change the oil. I was able to swap for the correct OEM filters yesterday, and I'll most likely change that filter tonight and top back off. Yesterday was a bit chaotic so I couldn't get under the car. I will take some photos for the board.
After some digging, I finally found the factory fill for your engine:
https://www.shell.com/motorist/oils...thetic/shell-helix-ultra-ect-c2-c3-0w-30.html
Yep, it's the same stuff as Pennzoil Platinum Euro LX 0W-30 and Quaker State Euro LX 0W-30. All Hyundai N-Line vehicles ship with this oil from the factory. Since they share the same engines, I assume that it's the same for your KIA K5 GT.
The European manuals for the N-Line vehicles allow for oils ranging from 0W-30 all the way up to 20W-50:
https://workupload.com/file/f7H8DDTdjZ9
This statement in the owner's manual for the i30 N holds so much truth, however, you will not find it in the US version:
Engine oil viscosity (thickness) has an effect on fuel economy and cold weather operating (engine start and engine oil flowability). Lower viscosity engine oils can provide better fuel economy and cold weather performance, however, higher viscosity engine oils are required for satisfactory lubrication in hot weather.
The only reason why Hyundai messed up the owner's manual for the US market is because of the EPA fuel economy and pollution requirements. They are more stringent than ever. Historically, Hyundai has done this before, only to issue internal TSBs later on asking dealers to use 5W-30 in N/A engines and 5W-40 in their Turbo Charged 2.0L Theta II engines. The Theta II doesn't like thin oils for several reasons, including fuel dilution and the bearings not being wide enough to compensate for thinner oils. In other markets, Hyundai doesn't even mention 0/5W-20 for a N/A Theta II engine, and it specifically states for the Lamba II engine not to use 5W-20 in hot climates. This, by the way, makes me question my own choice of "wanting to be compliant" and running 0W-20 in NC hot weather in our Sonata. It runs fine. The fuel economy is great. However, if I could get some of that QS/PP LX 0W-30, I would switch to that in a heartbeat.
I hope that this information is useful to you and alleviates any concerns you had about motor oil for your fine vehicle. IMHO, thin ILSAC oil is fine for N/A engines. However, a thicker oil should be used for a performance Turbo engine like yours that carries some beefy approvals. The factory fill oil is fine if you can find it.
[Edit]
It says:
This product is no longer available in the United States.
I think that Shell has pulled this 0W-30 from the US market. I wonder when Hyundai/KIA will get their heads out of their arses and stop confusing people with their oil recommendations for the US market.