55Gal Prices on Transmission / Hydraulic Oils: 10W TO-4, 30W TO-4, 50W TO-4 for powershift transmissions that require Allison C-4 or Caterpillar TO-2 fluid. 

TO-4 10W, 30, 50, and 60 are extra high performance, heavy duty transmission and drive-train lubricants engineered to meet or exceed the requirements of the rigorous Caterpillar TO-4 specification.  This product line is uniquely designed to optimise the performance of powershift transmissions, gearboxes, and final drives.  In hydraulic applications, they provide maximum protection even in high pressure systems

This technology combines selected base oils and an advanced additive system to deliver the precise performance parameters needed to maximise the productivity of construction, quarrying, and mining equipment operating in severe conditions. These products offer a clear performance advantage over the use of mixed fleet engine oils and previously used lubricants meeting Caterpillar TO-2.