1997 Chevrolet Astro Owner's Manual - Page 336

I Short TkipKity Maintenance Schedule 1 24,000 Miles (40 000 km) Change engineoil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 27,000 Miles (45 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0Lubricate chassis components (or every 0Lubricate chassis components (or every 3 months, whichever occursfirst). 3 months, whichever occursfirst). (See footnote#.) (See footnote #.) 0Check readfront axle fluid level and add fluid 0Check readfront axle fluid level and add as needed. Check constant velocityjoints and fluid as needed. Check constant velocity axle seals for leaking. (See footnote**.) joints and axle sealsfor leaking. (See footnote **.) 0Rotate tires. See "Tire Inspection and Rotation'' in the Indexfor proper rotation pattern and additional information. (See footnote +.) DATE ACTUAL MILEAGE SERVICED BY: DATE ACTUAL MILEAGE SERVICED BY: 7-12