PPE Premium High-Efficiency Engine Oil Filter has over 20% more specially engineered filter media equalli9ng 552 sq in. Perforated metal center core provides sufficient support, preventing collapse. Blow-by is eliminated by an integrated coil spring, while a high-power magnet catches ferrous particles. The silicone anti-drain-back valve prevents dry starts, and a stiffer spring in the bypass valve maximizes protection. This part directly replaces Motorcraft FL-2051S.