1 Liter / 1.05qt A full synthetic dirt bike oil that beats all others. To begin with, we formulate X4 1000 Full Synthetic 10w40 Motorcycle Engine Oil with the highest-quality ester-based synthetics. Secondly, we add the most advanced additive technology available. As a result, the combination offers ultimate protection for your machine while equally optimizing performance output. Product Benefits: Maintains maximum engine protection under severe operating conditions. Ester-based synthetics and advanced additive technology ensures peak performance API SN and JASO MA2.