For a Hero Honda Splendor, it is recommended to use engine oil that meets the specifications outlined by the manufacturer. Hero Honda (now known as Hero MotoCorp) recommends using 10W-30 grade engine oil for the Splendor motorcycle.
When choosing engine oil, it's important to look for oil that meets the required viscosity grade (10W-30 in this case) and any additional specifications mentioned in the owner's manual or by the manufacturer. Additionally, ensure that the oil meets the necessary standards, such as API (American Petroleum Institute) or JASO (Japanese Automotive Standards Organization) ratings.
You can consult the owner's manual or contact an authorized Hero MotoCorp service center for specific recommendations regarding engine oil brands and specifications. They can provide the most accurate information for your Hero Honda Splendor motorcycle.