Add the additives product line of ExxonMobil Chemical Company to that of Shell Chemicals and you'll get, if not infinity, at least Infineum. The joint venture makes petroleum additives for fuel and lubricants. Infineum divides its products along five distinct lines: driveline additives (for transmission fluids and axle lubrication), engine oil additives (for everything from lawnmowers to heavy-duty diesel engines), fuel additives (including refinery additives and those designed to improve fuel performance), industrial products (compressor, metalworking, and hydraulic fluids), and marine additives (for fuel and oil).