Absolutely and of course! 
In newer engines, 0w-16 is being recommended by their companies, irrespective they are to be driven in Sakardu, or Sibbi.
Is it giving any problem(s)? Check lights in dashboard, etc.?
If no, then I believe no need, otherwise, if you would like to have it scanned for your satisfaction and spend 1-2,000 rs. on it, you may go for it.
No harm in getting the vehicle scanned for any / all fault codes.
Brother no idea, especially for Peshawar.