2009 Honda Accord Owner's Manual - Page 320

Main Menu Table Of Contents Adding Engine Oil Honda Motor Oil is the preferred 5W-20 lubricant for your vehicle. It is highly recommended that you use Honda Motor Oil in your vehicle for optimum engine protection. Make sure the API Certification Seal says ''For Gasoline Engines.'' The oil viscosity or weight is provided on the container's label. 5W-20 oil is formulated for yearround protection of your vehicle to improve cold weather starting and fuel economy. Synthetic Oil You may use a synthetic motor oil if it meets the same requirements given for a conventional motor oil: it displays the API certification seal, and it is the proper weight. You must follow the oil and filter change intervals shown on the information display. Engine Oil Additives Your vehicle does not require any oil additives. Additives may adversely affect the engine or transmission performance and durability. Ambient Temperature API CERTIFICATION SEAL Maintenance 317 2009 Accord Sedan