The owner's manual typically provides specific guidelines regarding the recommended viscosity grade, oil type (conventional, synthetic, or semi-synthetic), and any other specifications or brands that are suitable for the motorcycle. It's important to use the recommended engine oil to ensure optimal performance, protection, and longevity of the engine.
If you're unsure about the appropriate engine oil for your Suzuki Gixxer SF, I would suggest referring to the owner's manual or consulting with a Suzuki authorized service center for accurate and up-to-date information based on the specific model and year of your motorcycle.