2003 Chevrolet Astro Owner's Manual - Page 341

52,500 Miles (87 500 km) CI Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote#). 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 0 Rotate tires. See Tire Inspectionand Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote+). 0 Change automatic transmissionfluid and filterif the vehicle is mainly driven under one or more these of 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 any these of conditions, change the fluid and filter every 50,000 miles (83000 km). 0 Rotate tires. See Tire Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote +). 0 Replace fuel filter. An Emission Control Service. (See footnote t). 0 Replace engine air cleaner filter. An Emission Control Service. 60,000 Miles (100 000 km) 0 Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote#). 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 6-22