2002 Chevrolet Express Van Owner's Manual - Page 351

Short Trip/City Scheduled Maintenance dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote [.) Gasoline Engine Only: See "Engine Air Cleaner Filter Restriction Indicator Check" in the Index. j Check axle fluid level and add fluid as needed. 2500 and 3500 Series Only: If driving in dusty areas or when towing a trailer, drain fluid and refill every 15,000 miles (25 000 km). j Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). j Vehicles With GVWR Above 10,000 lbs. or Equipped with Diesel Engine 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. 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 Diesel Engine Only: Inspect engine air cleaner filter if you are driving in 15,000 Miles (25 000 km) DATE ACTUAL MILEAGE SERVICED BY: 7-12