1997 GMC Suburban Owner's Manual - Page 379

I Short Trip/City Maintenance Schedule -- Gasoline Engines I CI Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage looseness. Adjust or or replace as required. This is a Noise Emission Control Service. Applicableonly to vehicles sold in the United States. 75,000 Miles (125 000 km) 0Change engineoil 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#.) 0For Two-Wheel-Drive vehicles only: Clean and repack the frontwheel bearings (or at each brake relining, whichever occurs first) DATE ACTUAL MILEAGE SERVICED B Y 7-23