These tiny engine JDMs are designed for low viscose engine oils for better fuel economy, like
5w-20 (ZIC A+)
5w-30 (LM, Total Qartz9000, etc.)
0w-30 (ZIC 0w-30)
Keep your car on these oils throughout the year and enjoy the smooth drive with better engine health.
Best peace of mind is, to buy these oils from Metro/Hyperstar and go to any shop for change.
But stay away from Guard filters, MAX or similarly locally made. Leppons are good and durable. Find the well reputed shop of your are to buy them.