Master Mechanic, 5 Gallon, Hydraulic Tractor Fluid, Blended To Incorporate Advanced Additive Technology Combined With Highly Refined Base Stocks To Provide Excellent Long Term Service In Modern Agri-Industrial Equipment Under Severe Conditions, It Is Designed For Use In Equipment Utilizing A Common Pump Or Requiring A Single Fluid For Final Drive, Transmission, Differential, Power Take-Off (PTO) Units & Wet Brake System.