1993 Buick Regal Owner's Manual - Page 276

Explanation of Scheduled Maintenance Services Below are explanations of the services listed in Schedule I and Schedule 11. The proper fluids and lubricants to use are listed in Section D. Make sure whoever services your vehicle uses these. All parts should be replacedand 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. 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. 1. Engine Oil and Filter Change* -- Always use SG Energy Conserving I1 oils of proper viscosity. The "SG" designation may be shown alone or in 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. 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. * 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. Inspect hoses and replace if they are cracked, swollen or deteriorated. Tighten screw-type hose clamps. Clean the outside of the radiator and air An Emission Control Service. that will recall tothe completion of vehicle The U.S. Environmental Protection Agency has determined the failure to perform this maintenance item not nullify the emission warranty or limit liability prior useful life. General Motors, however, urges that all recommended maintenance services performed at the indicatcd intervals and the maintenance recorded in "Section E:Maintenance Record". he be 274