2003 Oldsmobile Alero Owner's Manual - Page 310

50,000 Miles (83 000 km) 0 Change automatic transaxle fluid and filter if the vehicle is mainly driven under one or more 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 60,000 Miles (100 000 km) 0 Rotate tires. See Tire Inspection and Rotation on page 5-55 for proper rotation pattern and additional information. (See footnote +.) 0 Replace engine air cleaner filter. An Emission Control Service. 67,500 Miles (112 500 km) 0 Rotate tires. See Tire Inspection and Rotation on page 5-55 for proper rotation pattern and additional information. (See footnote +.) service. If you do not use your vehicle under any of these conditions, the fluid and filter do not require changing. 75,000 Miles (125 000 km) LI Inspect engine air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote f.) 0 Rotate tires. See Tire Inspection and Rotation on page 5-55 for proper rotation pattern and additional information. (See footnote +.) 52,500 Miles (87 500 km) c3 Rotate tires. See Tire Inspection and Rotation on page 5-55 for proper rotation pattern and additional information. (See footnote +.) U Rotate tires. See Tire Inspection and Rotation on page 5-55 for proper rotation pattern and additional information. (See footnote +.) 6-7