ACDelco PF2257G Professional Engine Oil Filter and O-Ring (Use with Cap Marked HENGST) For this filter, during servicing only the filter element is replaced, the shell and its internal components remain for the balance of the vehicle's life Designed with thermoplastic end discs that are constructed of 100% recycled material Requires reduced service for reduced disposal costs Equipped with 98% multi-pass filtering efficiency at 25-30 microns for excellent filtering capabilities Has a cellulose media that traps particles 1/3 the width of human hair to help ensure a clean supply of oil to engine components