I am using hero splendor bike from 3 years and I am very happy with the castrol engine oil. it is the best engine oil for your bike you can use for any bikes it is with really advance technology which keeps your engine safe and well maintain, I use my bike for dally travelling of 50 km from office to home but still I have never worried about my engine oil the oil keeps the engine clean. lastly I have replaced the oil before 8 months ago it is very good as compare to all other brands which cost near about same as compare to this one.
I would definitely recommend for all kind of 2 Wheeler users.