Chevrolet Optra 2005 Owner's Manual page 297

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. See Engine Air
Cleaner/Filter on page 5-17 for more information. An
Emission Control Service. (See footnote †.)
Rotate tires. See Tire Inspection and Rotation on
page 5-52 for 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. See Tire Inspection and Rotation on
page 5-52 for 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. See Engine Air
Cleaner/Filter on page 5-17 for more information.
An Emission Control Service.
Rotate tires. See Tire Inspection and Rotation on
page 5-52 for 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.
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