How much oil does a 4 stroke Yamaha 225 hp engine hold?

A 4-stroke Yamaha 225 hp engine typically holds about 6 quarts (or approximately 5.7 liters) of oil. It's important to refer to the owner's manual for specific recommendations, as variations may exist based on the model year and specific engine configuration. Always ensure to check the oil level and use the recommended oil type for optimal performance.