Abstract: An inexpensive and disposable oil pan used for the collection and disposal of used motor oil drained from an automobile's crankcase. The preferred oil pan is formed from a cut-out of lightweight corrugated paperboard and contains an absorbent filler material inside. Such absorbent filler material contains petrophilic micro-organisms which enable it to absorb the oil drained from the crankcase of a car and prevent it from leaching back out into the environment. When the oil comes in contact with the petrophilic micro-organisms in the filler material, those petrophilic micro-organisms act upon the oil and begin a bio-remediation process whereby the danger represented by the hydrocarbons in the oil is reduced to a level which is considered acceptable by most general waste facilities. Accordingly, the entire oil pan, with filler material and used oil contained inside, may be simply disposed of along with one's general supply of trash.