Chevrolet 2008 Optra Owner's Manual page 314

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 5-16 for more information.
Rotate tires. See Tire Inspection and Rotation on
page 5-60 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 5-60 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.
6-16
Replace engine air cleaner filter. See Engine Air
Cleaner/Filter on page 5-16 for more information.
Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote +.)
Replace spark plugs. An Emission Control Service.
Replace spark plug wires. An Emission Control
Service.
Check restraint system. Make sure the safety belt
reminder light and safety belt assemblies are working
properly. Look for any other loose or damaged safety
belt system parts. If you see anything that might keep
a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts
replaced. Also see Checking the Restraint Systems on
page 1-66.
Inspect drive belt(s).
Replace timing belt.
Inspect EVAP canister and vapor lines. Replace EVAP
vent solenoid valve. An Emission Control Service.
(See footnote †.)
Inspect PCV system. An Emission Control Service.
(See footnote †.)