1997 GMC Savana Van Owner's Manual - Page 328

I Short TripKity Maintenance Schedule Gasoline Engines -- 1 72,000 Miles (120 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 75,000 Miles (125 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0Check axle fluid level and add fluid as needed. (See footnote **.) 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) DATE ACTUAL MILEAGE SERVICED I Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0Inspect air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote?.) 1 BY: 7-24