1993 Oldsmobile Achieva Owner's Manual - Page 283

ITEM NO. SERVICE ITEM NO. SERVICE 5 6 7 Engine Accessory Drive Belt Inspection*Inspect the belt for cracks, fraying, wear and proper tension. Replace as needed. 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 mixtureas specified. See the I d e x under Coolant. This provides proper freeze protection, corrosion inhibitor level and engine operating temperature. Inspect hoses and replace they are cracked, if swollen or deteriorated. Clean the outsideof the surge tank and air conditioning condenser. To help ensure properoperation, we recommend a pressure test of both the cooling system andthe surge tank pressure cap. Transaxle Service-For a manual transaxle, fluid doesn't require changing. For an automatic transaxle, change both the fluid and filter every 15,000 miles (25 000 km) if the vehicle is mainly driven under one or more of these conditions: 8 9 In heavy city traffic where the outside temperature regularly reaches 9OoF (32OC) or higher. In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police car or delivery service. If you do not use your vehicle under any of these conditions, change both the fluid and filter every 100,000miles (160 000 km) . Spark Plug Replacement*-Replacesparkplugs with the proper type. See the Index under Replacement Parts. Spark Plug Wire Inspection (3300 V6 Code N engine only)**-Inspect for burns, cracks or other damage. Check the boot fit at the coils and at the spark plugs. Replace wires as needed.