What purpose does it serve when an elitist Mopar guru replies with a smart *** answer? I hadn't ran a high zinc oil in years. The cam was nine years old until it suddenly failed. Unfortunately I installed new heads and changed the type of oil at the same time. That is why I posted this thread. I would greatly appreciate you not responding to anymore of my threads. However, I am sure you have a witty response for that as well. I have to wonder if you literally just sit around all day waiting to jump on some guy's thread who isn't a super genius like yourself just so you can berate him and show FABO just how cool you really are.