Extra-active additives to control and sweep away harmful soot and particles found in high performance engines. Outstanding protection against wear and exceptional versatility. A premium Heavy Duty Engine Oil from the Tata approved range of Shell Lubricants. Very good thermal resistance and stability. Friction control capability. Extra-active additives to control and sweep away harmful soot and particles found in high performance engines. A premium Heavy Duty Engine Oil from the Tata approved range of Shell Lubricants.