1997 GMC Savana Van Owner's Manual - Page 306

Introduction IMPORTANT: KEEP ENGINE OIL AT THE PROPER LEVEL AND CHANGE AS Your Vehicle and the Environment RECOMMENDED Proper vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. Allrecommended maintenance procedures are important. Improper vehicle maintenance even can affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase thelevel of emissions from your vehicle. help protect our To environment, and to keep your vehicle in good condition, please maintain your vehicle properly. Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner Assistance booklet, or your GM dealer for details. 7-2