What makes Castrol different from other oils, it has two times protection for your motor and normally oil change happens when a car drives for 5,000 KM, but if you use Castrol the kilometer will be extended to 10,000 KM ( for small Cars ).
For Heavy Duty Trucks ( Sinotruck, FSR , Eurotrucker , IVECO , Wechai, Mercedes) normal changing time is 10,000 KM but while using castrol it will be extended to 20,000 KM.
This is the benefit castrol brings for your Cars.