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For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2002 🢒 Eldorado 🢒 General Information 🢒 Maintenance and Lubrication 🢒 Maintenance Schedule

Normal Vehicle Use

The maintenance instructions contained in this Maintenance Schedule are based on the assumption that the vehicle will be used as designed:

    • To carry passengers and cargo within the recommended limitations as indicated on the Tire Placard located on the edge of the driver door
    • On reasonable road surfaces within legal driving limits
    • On unleaded gasoline of the recommended type. For information on the proper type of fuel to use, refer to the Owner's Manual

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 emissions 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.

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

Engine Oil Scheduled Maintenance

Change engine oil and filter as indicated by the GM Oil Life System™ or every 12  months, whichever occurs first. Reset the system.

Your vehicle has a computer system that lets you know when to change the engine oil and filter. This is based on engine revolutions and engine temperature and not on mileage. Based on driving conditions, the mileage at which an oil change will be indicated can vary considerably. For the oil life system to work properly, you must reset the system every time the oil is changed.

When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL message in the Driver Information Center (DIC) will come on. Change your oil as soon as possible within the next two times you stop for fuel. It is possible that, if you are driving under the best conditions, the oil life system may not indicate that an oil change is necessary for over a year. However, your engine oil and filter must be changed at least once a year and at this time the system must be reset. It is also important to check your oil regularly and keep it at the proper level.

If the system is ever reset accidentally, you must change you oil at 5,000 km (3,000 mi) since your last oil change. Remember to reset the oil life system whenever the oil is changed. Refer to GM Oil Life System Resetting .

Scheduled Maintenance

12 500 km (7,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

25 000 km (15,000 Miles)

    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.6L. Refer to footnote +.

37 500 km (22,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

50 000 km (30,000 Miles)

    • Inspect throttle body bore and valve plates for deposits, open the throttle valve and inspect all surfaces. Clean as required.
        An Emission Control Service. Refer to footnote +.
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.6L. Refer to footnote +.

62 500 km (37,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

75 000 km (45,000 Miles)

    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.
        An Emission Control Service. Refer to footnote +.
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.6L. Refer to footnote +.

83 000 km (50,000 Miles)

    • Change the automatic transaxle 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 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 miles).

87 500 km (52,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

100 000 km (60,000 Miles)

    • Inspect throttle body bore and valve plates for deposits, open the throttle valve and inspect all surfaces. Clean as required.
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.
    • Inspect engine accessory drive belt. Replace if needed. Refer to Drive Belt Replacement in Engine Mechanical - 4.6L.
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.6L. Refer to footnote +.

112 500 km (67,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

125 000 km (75,000 Miles)

    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.
        An Emission Control Service. Refer to footnote +.
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.6L. Refer to footnote +.

137 500 km (82,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

150 000 km (90,000 Miles)

    • Inspect throttle body bore and valve plates for deposits, open the throttle valve and inspect all surfaces. Clean as required.
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.6L.
        An Emission Control Service. Refer to footnote +.
    • Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

162 500 km (97,500 Miles)

Rotate tires. Refer to Tire Rotation in Tires and Wheels. Refer to footnote +.

166 000 km (100,000 Miles)

    • Inspect spark plug wires. Refer to Spark Plug Inspection in Engine Controls - 4.6L. Refer to footnote +.
    • Replace spark plugs. Refer to Spark Plug Replacement in Engine Controls - 4.6L.
    • Change the automatic transaxle 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
       - Frequent trailer towing
       - Uses such as taxi, police or delivery service
    • If the vehicle is not used under the severe service conditions listed previously and the automatic transaxle fluid has not been changed, change both the fluid and filter.

240 000 km (150,000 Miles)

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. If there is a loss of coolant, refer to Loss of Coolant in Engine Cooling.