Chevrolet Optra 2005, Owner'S Manual, Page: 296 / 336

22,500 Miles (37 500 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 fo.)
30,000 Miles (50 000 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 fo.)
❑
Replace spark plugs. An Emission Control Service.
❑
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. See Engine Coolant on
page 5-20 for 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).
37,500 Miles (62 500 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 fo.)
6-14