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Makes 🢒 Oldsmobile 🢒 1998 🢒 Silhouette Ext. 🢒 General Information 🢒 Maintenance and Lubrication 🢒 Maintenance Schedule - Long Trip/Highway

Long Trip Maintenance Schedule

The services shown in this schedule up to 166 000 km (100,000 miles) should be performed after 166 000 km (100,000 miles) at the same intervals. The services shown at 240 000 km (150,000 miles) should be performed at the same interval after 240 000 km (150,000 miles).

Footnotes

† The U.S. Environmental Protection Agency or the California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded.

12 500 km (7,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

25 000 km (15,000 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Replace passenger compartment air filter.
    • Rotate tires.
    • Brake system inspection.

37 500 km (22,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

50 000 km (30,000 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Replace passenger compartment air filter.
    • Rotate tires.
    • Brake system inspection.
    • Replace air cleaner filter. An Emission Control Service.

62 500 km (37,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

75 000 km (45,000 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Replace passenger compartment air filter.
    • Rotate tires.
    • Brake system inspection.

83 000 km (50,000 Miles)

Change the automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    • In heavy city traffic where the outside temperature regularly reaches 32°C (90°F) or higher.
    • In hilly or mountainous terrain.
    • When doing frequent trailer towing.
    • Uses such as found in taxi, police or delivery service.
        If the vehicle is not operated under any of these conditions, the fluid and filter do not require changing.

87 500 km (52,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

100 000 km (60,000 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Replace passenger compartment air filter.
    • Rotate tires.
    • Brake system inspection.
    • Inspect drive belt. An Emission Control Service.
    • Replace air cleaner filter. An Emission Control Service.
    • Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service†.

112 500 km (67,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

125 000 km (75,000 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Replace passenger compartment air filter.
    • Rotate tires.
    • Brake system inspection.

137 500 km (82,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

150 000 km (90,000 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Replace passenger compartment air filter.
    • Rotate tires.
    • Brake system inspection.
    • Inspect drive belt. An Emission Control Service.

162 500 km (97,500 Miles)

    • Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.
    • Rotate tires.
    • Brake system inspection.

166 000 km (100,000 Miles)

    • Inspect the spark plug wires. An Emission Control Service.
    • Replace spark plugs. An Emission Control Service.
    • Change the automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:
       - In heavy city traffic where the outside temperature regularly reaches 32°C (90°F) or higher.
       - In hilly or mountainous terrain.
       - When doing frequent trailer towing.
       - Uses such as found in taxi, police or delivery service.
       - If the vehicle is not operated under any of these conditions, the fluid and filter do not require changing.

240 000 km (150,000 Miles)

Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first). Inspect the radiator and heater hoses. Clean the radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap. An Emission Control Service.