2004 Pontiac Grand Prix Owner's Manual - Page 394

60,000 Miles (100 000 km) u For supercharged engines only: Check the supercharger oil level and add the proper supercharger oil as needed (or every 36 months, whichever occurs first). See Part D: Recommended Fluids and Lubricants on page 6-16. An Emission Control Service. (See footnote †.) u Rotate tires. See Tire Inspection and Rotation on page 5-71 for proper rotation pattern and additional information. (See footnote +.) u Replace passenger compartment air filter. If you drive regularly under dusty conditions, the filter may require replacement more often. u Replace engine air cleaner filter. See Engine Air Cleaner/Filter on page 5-22 for more information. An Emission Control Service. 75,000 Miles (125 000 km) u Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change. See Engine Air Cleaner/Filter on page 5-22 for more information. An Emission Control Service. (See footnote †.) u Rotate tires. See Tire Inspection and Rotation on page 5-71 for proper rotation pattern and additional information. (See footnote +.) u Replace passenger compartment air filter. If you drive regularly under dusty conditions, the filter may require replacement more often. 82,500 Miles (137 500 km) u Rotate tires. See Tire Inspection and Rotation on page 5-71 for proper rotation pattern and additional information. (See footnote +.) 67,500 Miles (112 500 km) u Rotate tires. See Tire Inspection and Rotation on page 5-71 for proper rotation pattern and additional information. (See footnote +.) 6-8