Both Valvoline 4T 20W-50 and Castrol Power 1 20W-50 are popular engine oils suitable for motorcycles. When choosing an engine oil for your Pulsar 220F, it's important to consider the manufacturer's recommendations as specified in the owner's manual.
Since I don't have access to the specific details of the Pulsar 220F's owner's manual, I recommend referring to the manual or contacting the manufacturer or an authorized dealer to obtain the recommended engine oil grade and specifications.
In general, a 20W-50 viscosity grade oil is commonly used in motorcycles with air-cooled engines or older models that require a higher viscosity oil. Both Valvoline 4T 20W-50 and Castrol Power 1 20W-50 are well-known brands and offer engine oils that meet the necessary industry standards and certifications.
If the owner's manual does not specify a particular brand, you can choose either Valvoline 4T 20W-50 or Castrol Power 1 20W-50, as both are reputable brands with a good track record. Ensure that the oil you choose meets the necessary specifications, such as the American Petroleum Institute (API) standards, and is compatible with motorcycles.
If you're unsure or want to be absolutely certain, it's always best to consult the owner's manual or seek advice from the manufacturer or an authorized dealer to ensure you select the appropriate engine oil for your Pulsar 220F.