1993 Buick Park Avenue Owner's Manual - Page 304

Explanation of Scheduled Maintenance Services Below are explanations of the services listed in Schedule I and Schedule 11. The proper fluids and lubricants touse are listed in Section D. Make sure whoever services your vehicle uses these. All parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. NOTE: To determine your engine's displacement and code, see "Engine Identification" in the Index. 1. Engine Oil and Filter Change* -- Always use SG Energy Conserving I1 oils of proper viscosity. The "SG" designation may be shown alone orin combination with others, such as "SG/CC", "SG/CD" or "SF, SG, CC,"etc. To determine the preferred viscosity for your vehicle's engine (e.g., SAE 5W-30 or SAE 10W-30), see "Engine Oil" in the Index. If your vehicle has an Engine Oil Life Monitor, the monitor will show you when to change the oil. See "Engine Oil Life Monitor" in the Index. * 2. Chassis Lubrication -- Lubricate the transaxle shift linkage, parking brake cable guides, underbody contact points and linkage. If your vehicle is equipped with grease fittings,lubricate the suspension and steering linkage. 3. Throttle Body Mounting Bolt Torque"-- Check the torque of the mounting bolts and/or nuts. 4. Tire and Wheel Rotation and Inspection -- For proper wear and maximum tire life, rotate your tires following the instructions in this manual. See "Tires, Inspection & Rotation" in the Index.Check the tires for uneven wear or damage. If you see irregular or premature wear, check the wheel alignment. Check for damaged wheels also. 5. Engine Accessory Drive Belt(s) Inspection -Inspect the belt(s) for cracks, fraying, wear and proper tension. Replace as needed. 6. Cooling System Service* -- Drain, flush and refill the system with new or approved recycled coolant conforming to GM Specification 1825M. Keep coolant at the proper mixture as specified. See "Coolant" in the Index. This provides.proper freeze protection, corrosion inhibitor level and engine operating temperature. An Emission Control Service. The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify emission warranty or limit recall liability prior the completion of vehicle the to useful life. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded in "Section E:Maintenance Record". 302