Reusable fluid filter

A re-usable filter adapted to be removingly affixed to an engine, said filter comprising:

• a housing having an open end and a closed end;
• a filtering part disposed within said housing adjacent said open end, said filtering part including a disposable filtering media, an additive part disposed within said housing between the filtering part and said closed end, said additive part including a replaceable chemical additive, the filtering part being adapted to receive said filtering media and the additive part being adapted to receive said chemical additive;
• the filtering part including a retaining means for retaining said filtering media, said retaining means being sealingly connected to the open end of said housing, said retaining means including means for defining a cavity facing exteriorly of said housing, the cavity of said retaining means defining an input aperture abuttable against the engine for receiving fluid to be filtered from the engine, said retaining means including means for defining an output aperture also connectable to the engine, said filter media being sealingly disposed in said cavity to form an inlet side facing said input aperture and an outlet side;
• said filtering media being removable and replaceable via said input aperture when the filter is removed from the engine;
• said filter media retaining means including an additive aperture means disposed on said outlet side of the cavity for establishing a flow connection between said additive part and said filtering part, wherein said additive aperture means is accessible via said input aperture to facilitate replacement of said chemical additive when the filter is removed from the engine and the filtering media has been removed from the retaining means.