While i was in Napa picking up a belt (another thread/topic) I decided to take advantage of the discount i was getting and stocked up on some oil filters. I picked up 4 for the Milan, and 4 for the Accord. Ive been using these Napa golds with success for some time now but ive been limiting there OCI/Filter change to 5-6 thousand miles or one year. I dont think im going to long at 6,000 miles on this filter but im curious as to what maxium would be ? Both cars are 6 cyl engines Both cars get used for mixed city/highway driving. 50/50 your thoughts ?