Um yeah my 2012 Avenger 3.6 which I purchased new went on oem oil till 2k. I was paranoid and changed it since it was a "new" motor. Then synthetic mobile 1. That lasted till 10k! Then I switched to Dino oil, that went almost 3k. Then back to synthetic, that had almost 8k on it when I traded for my journey. So I think it must do a pretty good job of calculating oil life. But with this goin on, this was my first oil change that I've had since I've owned it. Why so little mileage? Unless the dealer used Dino vs synthetic, but still that's not alot of miles, considering it was all interstate.