Clog resistant pan adapter

A clog resistant oil pan adapter for an engine flushing system for circulating flushing fluid through an internal combustion engine to clean the engine, the engine being of the type having an engine block with an oil pan having an oil pan interior chamber and an oil pan drain port, the clog resistant adapter being adapted to be connected with the oil pan drain port and to connect the engine flushing system with the oil pan drain port of the engine, the clog resistant oil pan adapter comprising:

• a main body portion having an interior duct extending therethrough, the main body portion having proximal and distal ends, at least one exit aperture being formed in said distal end of said main body portion in fluid communication with the interior duct of the main body portion, for returning the flushing fluid to the engine flushing system;
• a tubular connector hub at the proximal end of the main body portion for engaging and mating with the oil pan drain port, said tubular connector hub having a proximal end portion extending within the oil pan interior chamber when said clog resistant oil pan adapter is connected with the oil pan drain port, and said tubular connector hub having a surface defining a primary fluid entry port in said proximal end portion of the tubular connector hub connected in fluid communication with said interior duct for receiving flushing fluid from the oil pan interior chamber when said clog resistant oil pan adapter is connected with the oil pan drain port;
• and
• at least one secondary fluid entry port defined in the surface of said proximal end portion of the tubular connector hub connected in fluid communication with said interior duct for receiving flushing fluid from the oil pan interior chamber when said clog resistant oil pan adapter is connected with the oil pan drain port.