2000 Chevrolet Blazer Owner's Manual - Page 401

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 rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 97,500 Miles (162 500 km) DATE ACTUAL MILEAGE SERVICED BY: j Inspect spark plug wires. An Emission Control Service. j Replace spark plugs. An Emission Control Service. j If you haven't used your vehicle under severe service conditions listed j 100,000 Miles (166 000 km) DATE ACTUAL MILEAGE SERVICED BY: previously and, therefore, haven't changed your automatic transmission fluid, change both the fluid and filter. Manual transmission fluid doesn't require change. Inspect Positive Crankcase Ventilation (PCV) valve. An Emission Control Service. 7-40