The choice of engine oil for a Bajaj Pulsar 150 or any other motorcycle depends on several factors, including the manufacturer's recommendations, climate conditions, and personal preferences. It's always best to consult the owner's manual of your specific motorcycle model for the manufacturer's recommended oil grade and specifications.
That being said, Bajaj Pulsar 150 typically uses a 4-stroke engine, and a commonly recommended viscosity grade for motorcycles in general is 10W-40 or 20W-40, depending on the climate. These viscosity grades provide a good balance between cold-start performance and lubrication at operating temperatures.
Additionally, it's essential to use engine oils that meet the required industry standards and certifications. Look for oils that have the API (American Petroleum Institute) certification, with "SG" or later specifications. This ensures that the oil meets certain performance standards.
To make an informed decision, it is advisable to consider factors such as your riding conditions, local climate, and the recommendations provided by the manufacturer. If you have any doubts or specific requirements, it's always a good idea to consult with a trusted mechanic or refer to the manufacturer's guidelines for the most suitable engine oil for your Bajaj Pulsar 150.