Picked up a new to us 2018 Grand Cherokee Limited (V6) recently. Got it just before I had to go out on Fire with the Forest Service. So I talked to my wife the other day and she thought it would be a good idea to get the oil changed since we don't really know the last time it was done. She goes to a quickie Quaker State joint who milks her for $102 for what they say is "manufacture recommended" Synthetic 0W20. Huh? what is 0W20 and a $102 smackers. I said ok, next time wait till I get home!!