While the rationale for internal combustion engines has not changed significantly over time, demand for engines and related products has increased significantly. In order to keep pace with the ever-changing car market and even to go further, exxonmobil has been continuously developing and testing lubricants. Many years ago, "traditional lubricant" was called "lubricant" because of the absence of other products. However, the emergence of synthetic lubricants has changed this situation. Traditional lubricating oils are just a refined crude oil, whereas synthetic lubricating oils need to be refined, distilled, cleansed and decomposed into basic molecules. The lubricants are then re-structured and added additives to improve performance so as to achieve protection against grinding, high temperature protection, engine cleanness, emission system protection and fuel economy. At the exxonmobil research and engineering company (emre), scientists and engineers at the paul sboro technology cent...