1998 Pontiac Firebird Owner's Manual - Page 327
1998 Pontiac Firebird Manual
Page 327 highlights
KEEP ENGINE OIL AT THE PROPER LEVEL AND CHANGE AS I I Introduction Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition, also helps the but environment. All recommended maintenance procedures are important.Improper vehicle maintenance can even affect thequality of the a r we breathe. Improper fluid i levels or the wrong tire inflation can increase the level of emissions from your vehicle.To help protect our environment, andto keep your vehicle in good condition, please maintain your vehicle properly. RECOMMENDED I Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty andOwner Assistance booklet, your or Pontiac dealer for details. 7-2