TG9100, Tough Guard Oil Filter, Proven Protection For Up To 10,000 Miles, Engineered For Use With Premium Conventional & Semi-Synthetic Oil, Silicone Anti-Drainback Valve Holds A Reserve Of Oil In The Filter To Help Protect The Engine During Start Ups, 99% Dirt Trapping Efficiency, Suregrip Anti-Slip Texture Makes Changing Oil Filters Quick & Easy.