1998 Chevrolet Astro Owner's Manual - Page 371
1998 Chevrolet Astro Manual
Page 371 highlights
Long Tripmighway Maintenance Schedule 75,000 Miles (125 000 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. (See footnote :k*.) 0 Change automatic transmission 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 O 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. I f you do not use y o ~ vehicle under any of these conditions,change the fluid ~r ajid filter every 50,000 miles (83 000 km). 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) O I DATE I ACTUAL MILEAGE I SERVICEDBY I I 7-37