ICHIRO SEIRYU PAO API SN 0W-40 100% SYNTHETIC is the latest development in lubricating oil technology to maximize the protection for the newest engine fueled by gasoline.It is manufactured from Group-IV PAO and Group-III base stock combined with a modern system of enhancing additives of the latest API (American Petroleum Institute) service standard – SN and exceeds the most demanding requirements in relation to modern engine’s emission control as well as oil consumption. In the energy-conscious era of today, ICHIRO SEIRYU PAO API SN 0W-40 100% SYNTHETIC Engine Oil also designed to improve fuel efficiency by saving consumers on the cost of fuel.