Step 09: Wix 51372 + wet gasket

Comparison of the original Motorcraft filter, and the new Wix #51372. I've used Wix filters exclusively now for several years with very good results. Make sure you "wet" the rubber gasket with fresh oil before installing. A few drops smeared around the gasket will do the trick. I also pour a bit of fresh oil in the filter to pre-lube it. About an 1" from the bottom is all that's required. Next, crawl back underneath the vehicle, turn the filter on till the gasket "just" makes contact with the mounting surface, then tighten 3/4 turn past that. By the way, the oil has probably finished draining by now. Good time to put the oil drain-plug back in the pan. Make sure the contact area is clean, so it will seal well. Nothing more than a good tightening by hand with the 15mm box-end is all that's needed.