The gallery is filled to waist height with recycled engine oil, from which the piece takes its name. A walk way leads from a single entrance, leading the viewer into the space until they are surrounded by oil on all sides. The impenetrable, reflective surface of the oil mirrors the architecture of the room exactly, placing the viewer at the mid-point of a symmetrical visual plane.

Image credits (from left to right / top to bottom):
MONA, Tasmania, 2017; Saatchi Gallery, London, 1991; County Hall, London, 2003; Matts Gallery, London, 1987