1997 Buick Century Owner's Manual - Page 332

I Introduction IMPORTANT: I KEEP ENGINE OIL AT THE PROPER LEVEL AND CHANGEAS RECOMMENDED Your Vehicle and the Environment Proper vehicle maintenance not only helps to 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 orthe 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. El protection Plan Have you purchased the GM Protection Plan? ThePlan supplements your new vehicle warranties. See your Wlwranty andOwner Assistance booklet, or your Buick dealer for details. 7-2