The Hero Splendor Plus BS6 motorcycle requires engine oil that meets the specifications outlined by the manufacturer. For the most accurate and up-to-date information, it is always recommended to refer to the owner's manual or consult the authorized service center for the specific oil recommendation.
That being said, Hero MotoCorp, the manufacturer of Hero Splendor Plus, generally recommends using a 10W-30 grade engine oil for their motorcycles. It is advisable to choose an engine oil that meets the requirements of API (American Petroleum Institute) specifications and is suitable for motorcycles with wet clutch systems.
When purchasing engine oil, ensure that it is formulated for motorcycles and is compatible with the specifications recommended by the manufacturer. It's always a good idea to opt for a reputable brand and follow the manufacturer's guidelines to ensure optimal performance and longevity of your motorcycle's engine.