Fluted-rib spiral center tube protects against pressure surge damage. Double-rolled, tuck lock seam between the heavy duty baseplate and the housing protects against leakage during normal and high pressure operations. Oil filters need good efficiency and good capacity to protect engines. Those with poor efficiency fail to trap a significant portion of particles large enough to damage the engine. Those with poor capacity fill quickly, and once filled allow dirty oil to bypass the filtration media, circulate unfiltered and damage the engine.
Capacity becomes an especially critical issue with extended oil drain intervals.
Its rugged filter body contains a high-tech blended filtration media composed of cellulose, synthetic and glass fibers. Capacity Filter capacity is the amount of contaminants a filter media can hold without loss of oil flow and filtration. The Super Duty's advanced media blend, especially its cellulose and synthetic media, provides outstanding capacity. Plus, the strength and flexibility of these fibers allow tight pleating. Efficiency Filter efficiency is a filter's ability to trap contaminants.