2003 Chevrolet Impala Owner's Manual - Page 359

Maintenance Schedule Introduction Your Vehicle and the Environment Proper vehicle maintenance not only helpsto keep your vehicle in good working condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle. To help protect our environment, and to keep your vehicle in good condition, please maintain your vehicle properly. I KEEP ENGINEOIL AT THE PROPER LEVEL AND CHANGE AS RECOMMENDED Maintenance Requirements Maintenance intervals, checks, inspections and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition. Any damage caused by failure to follow recommended maintenance may not be covered by warranty. Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties.See your Warranty and Owner Assistance booklet or your dealer for details. 6-2