It is generally not recommended to add aftermarket additives or fuel additives to the fuel of your Honda Activa 6G or any other modern fuel-injected motorcycle without proper guidance from the manufacturer.
Modern motorcycles, including the Honda Activa 6G, are designed to run efficiently and reliably on the fuel available in the market, meeting the required specifications and standards. Adding aftermarket additives or fuel additives may not provide any significant benefits and could potentially cause adverse effects on the engine and fuel system.
It is advisable to follow the manufacturer's recommendations regarding fuel usage and maintenance for your Honda Activa 6G. Regularly using good quality fuel from reputable gas stations and following the recommended service intervals will help ensure the optimal performance and longevity of your motorcycle's engine. If you have any specific concerns or questions regarding fuel additives, it's best to consult with an authorized Honda service center or contact Honda directly for guidance.