Fram Tough Guard, TG8A, Spin On, Premium Oil Filter, Provides Superior Engine Protection, Uses A 9% Higher Level Of Synthetic Media To Provide 6 Times, More Engine Protection Than The Average Of Leading Economy Oil Filters, Outstanding 99% Dirt Trapping Efficiency, Silicone Anti-Drainback Valve Holds A Reserve Of Oil In The Filter To Help Protect The Engine During Start Ups.