For the Suzuki Gixxer 150cc motorcycle in South Asia, the recommended engine oil grade is typically 10W-40. This grade is suitable for the prevailing climate and temperature conditions in the region. However, it's always best to consult the owner's manual or contact an authorized Suzuki service center for the specific manufacturer's recommendations for your motorcycle model and the local climate conditions.
Using the recommended engine oil grade helps ensure optimal lubrication and performance of your bike's engine. It is also important to consider using high-quality engine oil from reputable brands that meet the necessary specifications and standards. Regularly changing the engine oil at the recommended intervals is crucial for maintaining the longevity and efficiency of your motorcycle's engine.