PIBSI Dispersant-Emulsifier is composed of highly reactive polyisobutylene at specific temperature. It is used to formulate internal combustion engine oil of premium quality. Free from chlorine, this emulsifying agent has excellent detergency. Its advanced formulation can resist accumulation of carbon in engine or automobile components running at high temperature and also helps to avoid deposition of oil sludge in engine. It can easily integrate with antioxidants, detergents of different formulation and corrosion inhibitors. Chemical properties of PIBSI Dispersant-Emulsifier remain unaffected at high temperature. It promotes easy solubility of high temperature based ash. Available in pure form, this emulsifier had standard shelf life.