The Harley Davidson Sportster 883 typically takes 20W-50 weight engine oil. It's important to use an oil that meets the manufacturer's specifications and is designed specifically for motorcycles.
Harley-Davidson recommends their own line of oils, including the Harley-Davidson Screamin' Eagle SYN3 Synthetic Motorcycle Oil. This oil is formulated to provide the necessary protection and performance for Harley-Davidson engines, including the Sportster 883.
Look for oils that are labeled as suitable for use in V-twin or air-cooled engines. It's essential to choose an oil that meets the recommended viscosity (20W-50 in this case) and is designed for motorcycles to ensure proper lubrication and protection.
Always refer to the owner's manual for your specific Sportster 883 model and year, as it will provide the most accurate and up-to-date information regarding oil type, viscosity, and any other specific considerations for your motorcycle. Additionally, consulting with a Harley-Davidson dealership or a knowledgeable motorcycle mechanic can provide further guidance on selecting the right oil for your Sportster 883.