The 3.6 V6 in the new-to-me Ram seems to be running fine. I've read about the lifter issues, but from what I gather, they seem to be from older model years. While the GM 3.6 obviously has very little in common, the 3.6 V6 in my 2010 Traverse was notorious for timing chain issues. I tended to change it every 5,000 in that and made it to 170,000 miles before the dreaded timing chain codes started to appear. What's the consensus on a 2021 Pentastar V6? Follow the OLM? Change more frequently? Valvoline synthetic or Pennzoil Platinum 0W-20 OK?