I used an Ea088 amsoil oil filter on my last oil change about 1000 miles ago. After installing it I noticed that it was taking about 4 seconds to build up pressure on the gauge. Usually this only took about ½ second. Today I purchased a Motorcraft oil filter from Wal-Mart for 20 bucks and removed the Ea088 amsoil filter and compared them side by side. Sure enough the amsoil filter is noticeably shorter. Obviously it was not closing the valve in the filter housing and all the oil was draining out every time I shut the engine off. The oil pressure is now back to ½ second pressure build up time with the Motorcraft filter. I personally will never use the amsoil filter again. Is this just my experience or has any one else had the same problem?