Spark plug CHEVROLET OPTRA 2005 1.G User Guide

45,000 Miles (75 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Inspect engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-17for more information.An
Emission Control Service. (See footnote †.)
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-52for proper rotation pattern and additional
information.(See footnote +.)
❑Inspect drive belt(s).
52,500 Miles (87 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-52for proper rotation pattern and additional
information.(See footnote +.)
60,000 Miles (100 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-17for more information.
An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-52for proper rotation pattern and additional
information.(See footnote +.)
❑Replace spark plugs.An Emission Control Service.
❑Replace spark plug wires.An Emission Control
Service.
❑Inspect drive belt(s).
❑Replace timing belt.
6-15

90,000 Miles (150 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-17for more information.
An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-52for proper rotation pattern and additional
information.(See footnote +.)
❑Replace spark plugs.An Emission Control Service.
❑Replace fuel filter.An Emission Control Service. (See
footnote †.)
❑Inspect drive belt(s).
❑Inspect timing belt.❑Drain, flush and refill cooling system. This service
can be complex; you should have your dealer
perform this service. SeeEngine Coolant on
page 5-20for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.An
Emission Control Service.
❑Inspect EVAP canister, vapor lines and solenoid
valve filter.An Emission Control Service. (See
footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
❑Change brake/clutch fluid (or every 24 months,
whichever occurs first).
97,500 Miles (162 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-52for proper rotation pattern and additional
information.(See footnote +.)
6-17