I'm probably going to change out the FF at around 3K if not a little sooner. 1st Chrysler product (other than a 75 Valiant which seems like a million years ago) I see for warranty purposes they ask you to use a oil that meets the Chrysler Specs I understand the FF is 5W20 PYB. I'm thinking of either sticking with that or PP or PU. I see that Royal Purple also carries the Chrysler spec as well. Out of the 4, suggestions? Weather is turning colder here finally. Plan on putting a Fumoto drain valve too. Really liked how it worked on my Crosstrek.