A Ford dealership wants $16 for the filter and over $30 for the gasket. My car has a cork gasket that was reused during the last flush (cork gaskets are supposedly worse, right?). Should I keep my gasket or buy new? Next, do I have to get the Motorcraft parts? A local autozone sells a Duralast branded AX4N filter with a rubber gasket for $17. Part number is TF217. Has anyone had experience with these?