2003 Oldsmobile Aurora Owner's Manual - Page 343
2003 Oldsmobile Aurora Manual
Page 343 highlights
90,000 Miles (150 000 km) 0 Inspect throttle body bore and valve plates for deposits, open the throttle valve and inspect all surfaces. Clean as required. An Emission Control Service. (See footnote t.) 0 Replace engine air cleaner filter. An Emission Control Service. 0 Rotate tires. See Tire Inspection and Rotation on page 5-63 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) 0 If you haven't used your vehicle under severe service conditions listed previously and therefore, haven't changed your automatic transaxle fluid, change both the fluid and filter. 150,000 Miles (240000 km) 0 Drain, flush and refill cooling system (or every 60 months since last service, whichever occursfirst). See Engine Coolant on page 5-24 for what to use. 97,500 Miles (162 500 km) U Rotate tires. See Tire Inspection and Rotation on page 5-63 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap. An Emission Control Service. U Inspect engine accessory drive belt. An Emission Control Service. 100,000 Miles (166 000 km) 0 Replace spark plugs. An Emission Control Service. 0 Change automatic transaxle fluid and bottom screens 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 service. 6-8