Stash of Havoline synthetic is gone Gotta get a new oil for the wife's KJ. Engine is 3.7L V-6, has 80K on the clock. Have run mostly the havoline synthetic in it since we have owned it, did a change or two with PP, but seemed to have more valve noise with PP vs. Havoline syn, even the wife noticed it. So, will be using a wix filter and would like to use a synthetic I can find at walmart. I was thinking either Valvoline syn power, Valvoline max life syn, M1 5-30 or even 0-30, maybe even the QS syn (Q power?), and havent ruled out PP. Any suggestions based on UOAs? OCI will be probably 6 months, which should be less than 6000 miles.