1999 Honda Odyssey Owner's Manual - Page 236

Engine Oil Additives Your Honda does not need any oil additives. Purchasing additives for the engine or transmission will not increase your vehicle's performance or longevity. It only increases the cost of operating your vehicle. Changing the Oil and Filter Always change the oil and filter according to the time and distance (miles/kilometers) recommendations in the maintenance schedule. The oil and filter collect contaminants that can damage your engine if they are not removed regularly. Changing the oil and filter requires special tools and access from underneath the vehicle. The vehicle should be raised on a service stationtype hydraulic lift for this service. Unless you have the knowledge and proper equipment, you should have this maintenance done by a skilled mechanic. 1. Run the engine until it reaches normal operating temperature, then shut it off. WASHER DRAIN BOLT 2. Open the hood and remove the engine oil fill cap. Remove the oil drain bolt and washer from the bottom of the engine. Drain the oil into an appropriate container. CONTINUED Maintenance