closes the collection unit permitting collection of contaminant free residual oil the assembly further includes a base welded to the housing with support arms for the plastic motor oil containers multiple assemblies may be stacked to provide the ability to collect oil from additional motor oil containers application_number US 67862003 A description in the following description like reference characters designate like or corresponding parts throughout the several views it is to be understood that illustrations are for the purpose of describing preferred embodiments of the invention and are not intended to limit the invention thereto as best seen in fig1 2 3 and 4 the assembly 10 for collecting residual motor oil from plastic motor oil containers 40 includes a housing 12 and a base support unit 24 the housing 12 is preferably constructed of injection molded plastic and has inlets 14 sized and shaped to receive the spouts of the standard motor oil containers 40 such that the spout substatantially closes the inlet when in place preventing dust or contaminants from entering the inlets 14 connect to drainage shafts 30 these drainage shafts 30 further include inlet tapers 34 that provide a snug fit on the spout of an oil container 40 the tapers 34 narrow from the inlet opening downwardly into the inlet drainage shaft 30 the housing 12 further includes a main drainage shaft 26 ending in an upwardly facing opening 27 the main drainage shaft 26 has a removable cap 20 which fits at the top of the main drainage shaft 26 as seen in fig5 the removable cap 20 further includes a cap lid 19 and a cap plug 21 the cap plug 21 has a diameter which is sized to fit within.