1993 Oldsmobile Silhouette Owner's Manual - Page 287

ITEM ITEM NO. SERVICE 5 Engine Accessory Drive Belt InspectionInspect the drive belt for cracks, hying, wear and proper tension. Replaceas needed. Cooling System Service*-Drain, flush and refill the system with newor approved recycled coolant conforming to GM Specification 1825M. Keep coolant at theproper mixture as specified. See the Index under Coolant. This provides proper freeze protection, corrosion inhibitor level and engine operating temperature. Inspect hoses and replace if they cracked, are swollen or deteriorated. Tighten screw-type hose clamps. Clean the outside of the radiator andair conditioning condenser.Wash the pressure cap and neck. To help ensure proper operation, we recornmend a pressure test of both the cooling system the and pressure cap. Transaxle Service-Change both the fluid and filter every 1 , 0 miles (25 000 km) if the vehicle 500 is mainly driven under one or more of these conditions: NO. SERVICE 6 8 9 In heavy city traffic where the outside temperature regularly reaches 90"F (32"C) or higher. In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, policecar or delivery service. If you do not use your vehicle under any of these conditions, change both the fluid and filter every 10 O miles (160 000 km). 0O O , SparkPlug Replacement*-Replacesparkplugs with the proper type. See the Index under Replacement Parts. Spark PlugWire Inspection*-Inspectforburns, cracks or other damage. Check theboot fit at the distributor or coils and at thespark plugs. Replace wires as needed. 7 285