from 7500miAMSOIL has reformulated its line of Extended Life XL Synthetic Motor Oils to provide up to 10,000-mile/six-monthdrain intervals, or longer when recommended in owners?manuals or indicated by electronic oil life monitoring systems.When compared to conventional oils, AMSOIL XL SyntheticMotor Oils provide superior wear control, improved high- andlow-temperature protection and greater shear stability.look-up your application or orderon my dealer website