This 10WT race engine oil from Red Line is a fully synthetic multi-grade oil with an SAE viscosity of 0W10. Red Line race engine oils are a 'no-compromise' oil specifically designed specifically to provide the ultimate in protection and power release for Motorsport engines. They are not required to meet manufacturer approvals for emissions, economy or drain intervals so the additives package is purely for maximum performance and protection for engines under extreme conditions.A no-compromise engine oil designed for optimum power and protection for race enginesHigh Zinc and Phosphorus content (Min 2200ppm) for excellent anti wear propertiesSpecial detergents improve lubricity and reduce detonationPolyol ester base stocks are used for a more stable film strength when exposed to fuel dilutionFormulated for improved friction reduction ensuring maximum engine performance is releasedRed Line race engine oils have less detergents added to them compared to regular engine oils so they should be