2003 Chevrolet Astro Owner's Manual - Page 334

75,000 Miles (125 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. U Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0 For Two-Wheel-Drivevehicles only: Clean and repack the front wheel bearings at each brake relining, (or whichever occurs first). CII Change automatictransmission fluid and filter if the vehicle is mainly drivenunder one ormore of these conditions: - In heavy city traffic where outside the temperature regularly reaches 90°F (32°C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such asfound in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km). 0 Inspect engine air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote t.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 78,000 Miles (130 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 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 Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote +.) 81,000 Miles (135 000 km) U Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. U Lubricate chassis components (or every 3 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. 6-15