1994 Buick Regal Owner's Manual - Page 274

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 replaced and all necessary repairs done before youor anyone else drives the vehicle. 3. 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. NOTE: To determine your engine's displacement and code, see "Engine Identification" in the Index. 1. Engine Oil and Filter Change* -- Always use SH or SG Energy Conserving I1 oils of proper viscosity. The "SH" or "SG" designation may be shown alone or in combination with others, such as "SH/CD," "SH, SG, CD," "SG/CD" etc. To determine the preferred viscosity for your vehicle's engine (e.g., SAE 5W-30or SAE 10W-30), see "Engine Oil" in the Index. 4. Engine Accessory Drive Belt(s) Inspection-- Inspect the belt(s) for cracks, fraying, wear and proper tension. Replace as needed. (Belts can have small cracks in individual ribs without affecting performance). 5. 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 they are cracked, swollen if or deteriorated. Tighten screw-type hose clamps. Clean the outside of the radiator and air conditioning condenser. Wash the pressurecap and neck. 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. 272