1997 Chevrolet Monte Carlo Owner's Manual - Page 310

30,000 Miles (50 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 37,500 Miles (62 500 km) El Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 0Replace air cleaner filter. An Emission Control Service. 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 0Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. (See footnote?.) DATE ACTUAL MILEAGE SERVICED BY: 7-29