The Silkolene Pro 4 XP is formulated to meet the needs of both air and water-cooled 4-stroke engines.For both air and water-cooled 4-stroke enginesRecommended SAE grade for the majority of motorcycle manufacturersBest improvements across a range of requirements11% fuel savings, 18% lower oil consumption and 3% improved powerThe Silkolene Pro 4 XP is the recommended SAE grade for the majority of motorcycle manufacturers.During the development of XP, it was tried, tested and compared to reputable competitor products in the same type engines. This research showed Silkolene what gave the best improvements across a range of requirements and led to the launch of the new and improved range of motorcycle engine oils utilising XP Technology.These developments in technology have meant that this oil is able to achieve 11% fuel savings, 18% lower oil consumption and 3% improved power (BHP/Torque).Recommended Application - both air and water-cooled 4-stroke enginesSpecification - API SN JASO MA2 AP