Even the Baldwin filter leaks down on my car. If I let my car sit for 24 hours I can take the filter off and it is empty. No filter that I have ever used will hold oil 24 hours. It should but does not. I have used UFI, Baldwin and Fram and all do the same thing. My car takes about 3 to 4 seconds for the pressure to come up. The light goes out and the gauge moves about the same time.