Abstract: A engine flushing apparatus for providing a convenient and easily portable complete apparatus for flushing the oil-lubricated portions of an engine. The engine flushing apparatus includes a solution tank for holding a solution. The solution tank comprises an upper opening and a substantially hollow interior. A suction conduit extends into the interior of the solution tank from the opening. A waste solution tank holds waste solution. The waste solution tank comprises an upper opening and a substantially hollow interior. A drain conduit extends into the interior of the waste solution tank from the opening. A pump circulates solution. The pump is in fluid communication with the suction conduit of the solution tank. An inlet conduit carries solution to the engine. The inlet conduit is adapted for connection to the oil fill opening of the engine. An outlet conduit carries solution away from the engine. The outlet conduit is connected to the oil drain opening of the engine.