1998 GMC Suburban Owner's Manual - Page 400

m ,mg Trip/Highway Maintenance Schedule -- Gasoline Engines I 90,000 Miles (I50 000 km) (Continued) 0 Vehicles With GVWR Above 8,500 lbs. Only: lnspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is N Noise Emissiou Control Service. Applicubl(~ only to vel7iclc.s sold i n [he United Stcrtes. 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 97,500 Miles (162 500 km) 17 Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) 0 Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 Rotate tires. See "Tire inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) DATE I ACTUAL MILEAGE I SERVICED B Y 7-36