Why are AMSOIL engine oils capable of extended drain intervals?
Answer: AMSOIL engine oils are formulated using premium synthetic base oils, and the highest-quality additives, that provide extended-drain capabilities. Formulated with high-quality additives, AMSOIL engine oils achieve greater cleaning powers, while providing better equipment protection over longer oil drain intervals. The unique synthetic formulation and robust TBN retention of AMSOIL synthetic engine oils work to resist oxidation and neutralize the acids that shorten the service life of other oils. Its characteristic resistance to high temperature volatility (burn-off) helps reduce oil consumption, while maintaining viscosity over longer periods of time than other oils. Please check the product web page for specific recommendations.