Doill Tulpar Racer 4T 5W/40 is fully synthetic 4-stroke engine oil for modern high-performance sports bikes that increases engine acceleration and power right up to max rpm. Doill, testing experience ensures maximum engine performance without sacrificing engine durability thus giving a significant benefit over other types of engine oils. Doill Tulpar Racer 4T 5W/40’s formula employs the very latest Burkut Technolog for 4-stroke motorcycles, so as to give optimum protection of the engine, clutch and gears even under the most arduous riding conditions including sustained operation at high rpm.