Since the weather was nice I decided to change oil and filter. Out: Valvoline MaxLife 5W30 and Purolator PL24651. In: NAPA Full Synthetic 5W30 and Fram TG2 Manufacture and Mfg. PN: Purolator PL24651 Date Code: F02G04G2 F = Fayetteville, NC Febr 4, 2015 Line = G Shift = 2 Duration miles: 2827 Duration days: 56 Notes: 1. The filter lost anti drain back valve function before 2827 miles yet the ADBV is in excellent shape. 2. The ADBV did not have any cuts or tears and was very soft and pliable. 3. The filter media did not have any holes or tears. 4. Wide pleat spaces were observed near the media seam. 5. Filter completed it's mission but with no ADBV function. 6. This is the second PL24651 I have used that lost ADBV function before 3000 miles. 7. While the gasket is nice, I did not buy the filter for the gasket. Photos: Filter label Base exterior Base interior Leaf spring ADBV surface facing filter core ADBV surface facing base plate Media best view Media worst view. Note the piece of epoxy pealing off the end cap. View inside can with some oil. Note: another piece of epoxy that had been caught. The little flecks are corrosion on the inside of the can. The clouds are simple reflections of the sky. View of the bypass valve. Purolator Date Code Table is here Enjoy the photos and let the discussion begin.