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Makes 🢒 Buick 🢒 2001 🢒 Park Avenue 🢒 General Information 🢒 Maintenance and Lubrication 🢒 Maintenance Schedule - Long Trip/Highway

Maintenance Schedule - Long Trip/Highway UH8

Important: Additional maintenance recommendations are in this subsection. Also refer to Owner Checks and Services , Periodic Maintenance Inspection .

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

Footnotes

[Dagger] 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 useful life of the vehicle. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded.

+ A good time to check the brakes is during tire rotation. Refer to Brake Pad Inspection in Disc Brakes.

12 500 km (7,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

25 000 km (15,000 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Replace passenger compartment air filter. Refer to Passenger Compartment Air Filter Replacement in HVAC.
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

37 500 km (22,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

50 000 km (30,000 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.
    • Replace passenger compartment air filter. Refer to Passenger Compartment Air Filter Replacement in HVAC.
    • Replace air cleaner filter. Refer to Air Cleaner Element Replacement in Engine Controls - 3.8 L.
    • For L67 engines check the supercharger oil level and add as needed. Refer to Supercharger Oil Level Inspection in Engine Mechanical - 3.8 L.

62 500 km (37,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

75 000 km (45,000 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Replace passenger compartment air filter. Refer to Passenger Compartment Air Filter Replacement in HVAC.
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

83 000 km (50,000 mi)

    • 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 used under any of these conditions, change the automatic transaxle fluid and filter at 166 000 km (100,000 mi).

87 500 km (52,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

100 000 km (60,000 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.
    • Replace passenger compartment air filter. Refer to Passenger Compartment Air Filter Replacement in HVAC.
    • Inspect engine accessory drive belt. Replace if needed. Refer to Drive Belt Replacement in Engine Mechanical - 3.8 L.
    • Replace air cleaner filter. Refer to Air Cleaner Element Replacement in Engine Controls - 3.8 L.
    • For L67 engines check the supercharger oil level and add as needed. Refer to Supercharger Oil Level Inspection in Engine Mechanical - 3.8 L.

112 500 km (67,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

125 000 km (75,000 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Replace passenger compartment air filter. Refer to Passenger Compartment Air Filter Replacement in HVAC.
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

137 500 km (82,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

150 000 km (90,000 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.
    • Replace passenger compartment air filter. Refer to Passenger Compartment Air Filter Replacement in HVAC.
    • Replace air cleaner filter. Refer to Air Cleaner Element Replacement in Engine Controls - 3.8 L.
    • For L67 engines check the supercharger oil level and add as needed. Refer to Supercharger Oil Level Inspection in Engine Mechanical - 3.8 L.

162 500 km (97,500 mi)

    • Change engine oil and filter (or every 12 months, whichever occurs first).
        An Emission Control Service. See footnote [Dagger].
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. See footnote +.

166 000 km (100,000 mi)

    • Inspect spark plug wires.
        An Emission Control Service. See footnote [Dagger].
    • Replace spark plugs. Refer to Spark Plug Replacement in Engine Controls - 3.8 L.
    • 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 you have not used the vehicle under severe service conditions listed previously, and therefore have not changed the automatic transaxle fluid, change both the fluid and filter.

240 000 km (150,000 mi)

Drain, flush and refill the cooling system (or every 60 months since the last cooling system service, whichever occurs first). Refer to Cooling System Draining and Filling in Engine Cooling. For information on the proper coolant to use, refer to Fluid and Lubricant Recommendations . Inspect hoses, clean radiator, condenser, pressure cap and neck.

An Emission Control Service. See footnote [Dagger].