Both Valvoline 4T 20W-50 and Castrol Power 1 20W/50 are suitable engine oils for your Pulsar 220F motorcycle. Both oils have similar viscosity ratings (20W-50) and are formulated specifically for 4-stroke engines.
When choosing between the two, it's essential to consider factors such as the manufacturer's recommendations, your riding conditions, and personal preferences. To make an informed decision, you should consult your motorcycle's owner's manual or contact the manufacturer to determine their recommended oil specifications.
If the manufacturer recommends or approves the use of either Valvoline or Castrol oils, you can choose based on factors like availability, pricing, and personal experiences or preferences. Both Valvoline and Castrol are reputable brands known for producing high-quality engine oils.
Ultimately, using the recommended oil type and changing it at regular intervals will help ensure optimal performance and longevity of your motorcycle's engine.