New member here.
2019 Genesis G80 3.8 NA
out: factory fill oil, they say it's 5W-30 Quaker State Full Synthetic, at 2,100 miles
in: Quaker State conventional 5W-30
Long story, but the manual specifies ACEA A5 oil, and my car came with 3 years of free oil changes from the dealership. However, the dealer will only put in conventional oil, not the full synthetic which ACEA A5 is. Torn between using the free changes every six months and using a full synthetic on my own dime. I don't drive much, maybe 4k miles in six months, and since this isn't a turbo, I think I'll be okay.
I had it changed at 2,100 miles because the car was built in Feb '19, making the oil a year old.