1993 Buick Park Avenue Owner's Manual - Page 311

INSPECTION OR SERVICE Brake System Inspection WHAT SHOULD BE DONE Inspect the complete system. Inspect brake lines and hoses for proper hookup, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Also inspect drum brake linings for wear and cracks. Inspect other brake parts, including drums, wheel cylinders, calipers, parking brake, etc. Check parking brake adjustment. You may need to have your brakes inspected more often if your driving habits or conditions result in frequent braking. NOTE: A low brake fluid level can indicate worn disc brake pads which may need to be serviced. Also, if the brake system warning light stays on or comes on, something may be wrongwith the brake system. See "Brake SystemWarningLight" in the Index. If your anti-lock brake system warning light stays on or comes on, something may be wrong with the anti-lock brake system. See "Anti-Lock Brake System Warning Light" in the Index. Section D: Recommended Fluids and Lubricants NOTE: Fluids and lubricants identified below by name, part number or specification may be obtained from your GM dealer. USAGE Engine Oil FLUID/LUBRICANT GM Goodwrench Oil Motor or equivalent for API service SG Energy Conserving I1 oils of the 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 viscosityfor your vehicle's engine, see "Engine Oil" in the Index. 50/50 mixture of water (preferably distilled) and good quality ethylene glycol base antifreeze (GM Part No. 1052753 or equivalent) conforming to GM Specification 1825M or approved recycled coolant conforming to GM Specification 1825M. Engine Coolant