Silkolene Pro 4 XP 10W60 Engine Oil 4L 600989781 Superior shear stability produces stay-in-grade synthetic ester containing multigrade engine oils Provides a high degree of anti-wear performance for stressed components Provides enhanced high temperature deposit control resulting in a cleaner engine and thus promoting longer engine life and performance retention Suitable for gearboxes and transmissions where engine oil technology is specified providing good pitting protection Balanced frictional properties give precise clutch control/ operation