The Bajaj Pulsar RS 200 is designed to run on regular unleaded gasoline with an octane rating of 87 or 91, depending on the fuel quality available in your region. Using a higher octane fuel, such as high octane gasoline with an octane rating of 93 or above, is generally unnecessary and does not provide any significant benefits for the engine.
The octane rating represents a fuel's resistance to knocking or pre-ignition. Higher performance engines with higher compression ratios often require higher octane fuel to prevent knocking. However, the Pulsar RS 200 has a relatively modest compression ratio and is designed to work efficiently with regular unleaded gasoline.
Using a higher octane fuel than recommended by the manufacturer is unlikely to improve the performance or fuel efficiency of the motorcycle. It may even lead to increased carbon buildup in the engine and potentially cause other issues. Therefore, it is generally best to stick with the fuel type and octane rating specified in the owner's manual for your Pulsar RS 200.