The recommended engine oil grade for the Yamaha FZS V3 motorcycle is 10W-40. This grade refers to the viscosity of the oil, which is the measure of its resistance to flow at different temperatures. Using a 10W-40 engine oil ensures proper lubrication and protection for the engine components across a range of temperatures, providing optimal performance for your FZS V3.
When selecting engine oil, it's essential to choose a high-quality oil that meets the required specifications and standards. You can refer to the owner's manual of your FZS V3 for more detailed information regarding the specific brand or type of oil recommended by Yamaha. It is always a good practice to follow the manufacturer's guidelines to maintain the performance and longevity of your motorcycle's engine.