1998 Oldsmobile Silhouette Owner's Manual - Page 389

I Short TripKity Maintenance Schedule I 0 Lubricate chassis components (or every 6 months, whichever occurs first). (See footnote #.) 0 Replace passenger compartment air filter. 0 Rotate tires. See "Tire Inspection and Rotation'' in the Index for proper rotation pattern and additional information. (See footnote +.) 50,000 Miles (83 000 km) 0 Change automatic transaxle fluidand filter if the vehicle is mainly driven under one ormore of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. If you do not use your vehicle under anyof these conditions,the fluid and filter donot require changing. DATE 51,000 Miles (85 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Sewice. DATE I 7-13