Oilpan: A metal bowl attached to the bottom of the crankcase into which the lubricating oil drains when the engine is not running. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostOil galleries Next PostOn-Board Diagnostic (OBD) system