Came off of a new-to-us 2018 Hyundai Sonata with the 2.4 GDI and 37,000 miles, unknown oil. Probably somebody's bulk 5w20. Has less than 1000 miles on it, but didn't have a sticker in it when we bought it, so had no idea of mileage until I pulled it. That being said, it was an ex-rental, and...