The best petrol (fuel) for your Pulsar 150 motorcycle would be the one that meets the manufacturer's recommendations. In general, Bajaj recommends using unleaded gasoline with an octane rating of at least 87 (RON) for the Pulsar 150.
It's important to follow the manufacturer's guidelines to ensure optimal performance and longevity of your motorcycle's engine. Using fuel with a lower octane rating may lead to knocking or pinging, which can potentially damage the engine over time. On the other hand, using fuel with a higher octane rating than recommended may not provide any significant benefits for the engine.
When refueling, it's also a good practice to choose fuel from reputable and trusted gas stations to ensure the quality and cleanliness of the fuel.
If you have any specific concerns or questions about fuel for your Pulsar 150, I recommend referring to the owner's manual or contacting an authorized Bajaj service center for the most accurate and up-to-date information regarding fuel recommendations for your specific model.