1996 GMC Suburban Owner's Manual - Page 353

I Short Trip/City Maintenance Schedule -- Gasoline Engines 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emissiolz Control Service. I 90,000 Miles (150 000 km) Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is ~1 Noise Emission Control Service. Applicableonly t o vehicles sold in the United Stutes. 0Lubricate chassis components; see footnote # (or every 3 months, whichever occurs first). I7 Check readfront axlefluid level and add fluid as needed. Check constant velocity joints and axle seals forleaking. ** 0For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0Replace fuel filter. Emissiolz Control Service. An 0Rotate tires. See "Tire Inspection and Rotation'' in the Index for proper rotation pattern and additional information. During tire rotation, check brake calipers for freedom movement. of Refer to the appropriateGM service manual for proper caliper service procedures. 0If your engine has a thermostatically controlled cooling fan, inspect all hoses and ducts for proper hook-up (or every 12 months, whichever occurs first). Be sure the valve works properly. This is n Noise Emission Control Service. Applicable only to vehicles sold in the United States. I DATE I ACTUAL MILEAGE ISERVICED B Y I 7-25