1998 Chevrolet Astro Owner's Manual - Page 365
1998 Chevrolet Astro Manual
Page 365 highlights
Long Trip/Highway Maintenance Schedule - 1 When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. If~jou not use your vehicle under any of tlwse conditions, changethe fluid do and-filterevery 50,000 miles (83 000 krn). 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 22,500 Miles (37 500 km) 0 Change engine oil and filter (or every 12 months, whichever occurs first). An Ernissiolz 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:l:.) 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) I DATE I 30,000 Miles (50 000 km) 0 Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. I DATE I (Continued) ' ACTUAL MILEAGE I SERVICEDBY I 7-31 I