Quote Originally Posted by bbrewer2005 View Post
...I didnt want the stp, but It needed an oil change, and I figured a couple thousand miles wont hurt. They do have anti drainback valves, however I guess it is possible that the one in my filter is faulty. Today it didnt give me a dry start.
Well that is promising. Hopefully it's not something more sinister going on with oil supply and recirculation. A guy can can become obsessive about this stuff very quickly and the online 'experts' all have conflicting points of view.
*OOC, next time you wander into a auto shop, take a couple of filters that have the same/similar diameter box and check which ones have an M20x1.5 thread and a seal about 66-68mm across. There might be a larger capacity filter available for the same price or maybe cheaper. I found a good upgrade for my J2 Hyundai 2.0 doing this.