1999 Chevrolet Express Van Owner's Manual - Page 331

yellowblue Short Trip/City Scheduled Maintenance -- Gasoline Engines j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) j Check axle fluid level and add fluid as needed. (See footnote **.) j Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). j Replace fuel filter. j Replace air cleaner filter. An Emission Control Service. (See footnote[.) An Emission Control Service. 90,000 Miles (150 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) j Vehicles With GVWR Above 10,000 lbs. Only: Inspect shields 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. 7-23