What kind of oil do you use in a 94 heritage softail?

For a 1994 Harley-Davidson Heritage Softail, it's recommended to use a high-quality motorcycle oil specifically designed for V-twin engines. A 20W-50 weight oil is typically suitable for warmer climates, while a 10W-40 can be used in cooler conditions. Always check the owner's manual for specific manufacturer recommendations and consider using synthetic oil for better performance and protection.