Moto Sport 4T 10W-40, 15W-50 and 20W-50 This semi-synthetic lubricant is perfect for four-stroke engines. It provides high thermal stability and its viscosity grade facilitates engine start-up at all temperatures. This makes Repsol Moto Sport 4T perfect for motorcycles which are parked on the street overnight or are driven in places with a changeable climate. Of course, it also guarantees optimal lubrication of the different parts of the engine and reduces component wear. API SL JASO T903:2016 JASO MA2