Abstract: Disclosed herein is a method of and apparatus for changing oil and an oil filter in an engine or the like having an oil sump and a mount for an oil filter. The method includes the steps of draining or adding oil to the oil sump to or from an external reservoir by use of a manually or electrically actuated pumping action. Simultaneously, if desired, the method includes the steps of changing the oil filter at a remote disconnected position. The method can be carried out by various apparatus, each of which has a first portion permanently connected to the engine to establish oil communication from the existent oil sump and filter mount to quick-disconnect couplers joined to a removable second portion including an external oil reservoir and a mount for an oil filter.