Servo TATA MOTORS GENUINE OIL SF 20W-40 is a high quality engine oil. It is synthesized form high viscosity index base stocks and contains additives to meet the stated performance standards. It gives excellent performance.It gives excellent oxidation stability, dispersancy characteristics and energy efficiency.It also provides long engine life.It is manufactured by IOCL on demand basis.We have this product in stock.It is particularly used in Tata Automotive Engines.