Oil change system for road vehicles

A distributed system for draining and refilling oil in a road vehicle engine within an engine compartment which includes an oil filter, an oil pan having an oil outlet port, and a removable drain plug installable in the outlet port, comprising first hose means having first and second end portions, said first end portion being connectable to the oil outlet port for providing oil into or out of the oil pan, a reversible electrically-powered pump means located remotely from said oil pan and having a first port and a second port, said second end portion of said first hose means being connected to said first port and said pump means, second hose means having a first end portion and a second end portion, said first end portion of said second hose means being connected to said second port of said pump means, valve means located remotely from said pump means and the oil pan, said valve means having a first port and a second port, said second end portion of said second hose means being connected to said first port of said valve means for controlling oil flow in said second hose means, third hose means being connected to said second port of said valve means for directing oil to and away from said valve means, an electric power means operatively connected to said pump means, and switch means including a switch for controlling electric power to said pump means, said switch means having a first position for operating said pump means to direct oil to the oil pan, said switch means having a second position for operating said pump means to drain oil from the oil pan, said switch means having a third position for interrupting electric power to said pump means, said switch means being biased to return to said third position when it is released by an operator of said switch means for requiring continuous attendance of an operator when said system is being operated, said switch means and said valve means being located in a housing attached within the engine compartment in a readily accessible location above the engine, said pump means attached within the engine compartment remotely outside said housing, said pump means operative in one direction for causing drainage of oil through the oil outlet port, said first hose means, said pump means, said second hose means, said valve means and thence through said third hose means and adapted for collection in a container for disposal or recycle, said pump means operative in a reverse direction for pumping new oil from a container in a manner opposite to said one direction whereby new oil can be introduced into the oil pan through the oil outlet port.