PYB 5w-30 on the DD (2010 Hyundai w/2.4L). Just because I been using it and have no particular reason to change, but now with 113k on the clock I have had recent thoughts to trying something else (still have a couple jugs left), maybe try HM oil, or just say nah and keep doing what I been doing. (no leaks, no need to add during 5k OCIs). Guess I'll think about it when I'm using the last jug of PYB.