Yamalube RS 4T is a fully-synthetic SAE 10W40 4T oil synergized with extreme performance esters specifically designed for ultimate high speed superbike requirements. Specially formulated for exceptional acceleration, efficiency and maximum power output in a modern high performance four-stroke motorcycle engines ️Ultimate protection against micro-pitting and clutch slippage ️Outstanding pick up and acceleration ️Superior power durability and efficiency ️High shear stable and efficient elasto -hydrodynamic lubrication especially in high thermal areas ️Maximum cleansing and engine wear protection