2001 Chevrolet Express Van Owner's Manual - Page 375

Long Trip/Highway Scheduled Maintenance j Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 12 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 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) j Replace fuel filter. An Emission Control Service. (See footnote [.) j Diesel Engine Only: Replace engine air cleaner filter. An Emission Control Service. Gasoline Engine Only: See "Engine Air Cleaner Filter Restriction Indicator Check" in the Index. 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. 30,000 Miles (50 000 km) DATE ACTUAL MILEAGE SERVICED BY: 7-36