These are premium quality oils manufactured from high quality base stocks fortified with extreme pressure additives, antifoam, antirust and antioxidation agents, thereby they have excellent oxidation resistance and thermal stability. PARTHAN EP grades contain phosphorous and sulfur as extreme pressure agents. These are non-corrosive to copper and copper alloys.

These oils are recommended for all heavy duty enclosed gear drives with circulation or splash lubrication system operating under heavy or shock load conditions, plain and antifriction bearings subjected to shock and heavy loads.