Thanks everyone for advice.
I decided that i will go for regular service 10000km with mineral oil from HASS.
And in between the interval at every 5000km, change oil and filter at local garage.
I have shortlisted few mineral oils
1. Shell helix Diesel engine oil 15w40 ch4.
2. Shell rimula r4 x 15w40 ci4+
3. Shell Rimula r3x 15w40 ch4.
Please advise on my idea.