Bosch Premium Oil Filters protect your engine by keeping harmful particles and dirt out, preventing premature wear and engine failure Bosch's exclusive FILTECH media utilizes a proprietary blend of natural and synthetic materials for superior filtration and increased engine protection FILTECH media technology screens out and holds on to up to 14 grams of dirt and particles, preventing it from circulating throughout your engine and causing damaging wear that can lead to engine failure Bosch cartridge filters are engineered to fit exactly the same as the original equipment filter for your vehicle for trouble free installation; O-ring included when specified by OE At manufactured specified replacement intervals, Bosch Premium Oil Filters will maintain high performance and prolong the life of your engine, avoiding costly repairs