1997 GMC Suburban Owner's Manual - Page 367

I Short TripKity Maintenance Schedule engineoil and filter (or every 3 months, whichever occurs first). -- Gasoline Engines I 21,000 Miles (35 000 km) 0Change engineoil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 18,000 Miles (30 000 km) 0Change An Emission Control Service. 0Lubricate chassis components every (or 3 months, whichever occurs first). (See footnote#.) 0Check readfrontaxle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0Rotate tires. See "Tire Inspection and Rotation'' in theIndex for properrotation pattern and additional information. (See footnote+.) 0Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote#.) Check readfront axle fluid level add and fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote**.) I DATE I ACTUALMILEAGE SERVICED BY:^ ~~~~ ~~ ~ ~ DATE ACTUAL MILEAGE SERVICED BY: I 7-11