1998 Chevrolet Express Van Owner's Manual - Page 313

I Introduction IMPORTANT: 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 we breathe. Improper fluid air levels or the wrong tire inflation increase the level can of emissions from your vehicle.To help protect our environment, and to keep your vehicle in good condition, please maintain your vehicle properly. KEEP ENGINE OIL AT THE PROPER LEVEL AND CHANGE RECOMMENDED Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. Seeyour Warranty andOwner Assistancebooklet, or yourGM dealer for details. 7-2