1997 GMC Suburban Owner's Manual - Page 370

I Short TripKity Maintenance Schedule -- Gasoline Engines I 33,000 Miles (55 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 34,000 Miles (60 000 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 readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote ** .) 0Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 0Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) DATE ACTUAL MILEAGE SERVICED B Y DATE ACTUAL MILEAGE SERVICED BY: 7-14