Motorcraft Oil Filters FL820 Every Motorcraft filter delivers the quality performance youve come to expect from Ford Motor Company products Theyre the only filters designed, engineered and recommended specifically for Ford, Lincoln and Mercury vehicles Engineered specifically for Ford, Lincoln and Mercury vehicles, each Motorcraft oil filter, including the popular Motorcraft FL1A, uses as many as 12 high-quality components Construction features include: Steel Cases "Ironed" for a precise fit, fluted to ease removal and painted for rust-resistance Pressure Relief Valve When it's cold outside or if the filter becomes clogged, oil flow through the filter can be reduced