Ichiro Seiryu ICR-1541 Fully Synthetic Engine Oil is blended from a synthesis of special basestock processed by a patented technology. Reinforced with a powerful additive package, as well as having Polyalphaolefins (PAO) content, Ichiro Seiryu ICR-1541 is ideal for modern high output, low emission, super or turbo charged, DOHC or GDI engines that are commonly found in latest European and Japanese models.