1996 Chevrolet Tahoe Owner's Manual - Page 366

90,000 Miles (150 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Lubricate chassis components; see footnote # (or every 12 months, whichever occurs first). 0Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. ** 0For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0Replace fuel filter. An Emission Control Service. 0Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is a Noise Emission Control Service. Applicable only to vehicles sold in the United States. If your engine has a thermostatically .controlled cooling fan, inspect hoses all and ducts for proper hook-up (or every 12 months,whichever occurs first). Be sure the valve works properly. This is a Noise Emission Control Service. Applicable only to vehicles sold in the United States. DATE ACTUAL MILEAGE SERVICED BY: 7-39