Chevrolet 2007 Optra Owner's Manual page 357

CAUTION:
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Performing maintenance work on a
vehicle can be dangerous. In trying to do
some jobs, you can be seriously injured.
Do your own maintenance work only if
you have the required know-how and the
proper tools and equipment for the job.
If you have any doubt, have a qualified
technician do the work. See Doing Your
Own Service Work on page 250.
If you want to purchase service information, see
Service Publications Ordering Information on
page 406.
"Part B: Owner Checks and Services" tells you
what should be checked and when. It also
explains what you can easily do to help keep your
vehicle in good condition.
"Part C: Periodic Maintenance Inspections"
explains important inspections that your dealer's
service department can perform for you.
"Part D: Recommended Fluids and Lubricants"
lists some recommended products necessary to
help keep your vehicle properly maintained. These
products, or their equivalents, should be used
whether you do the work yourself or have it done.
"Part E: Maintenance Record" is a place for
you to record and keep track of the maintenance
performed on your vehicle. Keep your
maintenance receipts. They may be needed to
qualify your vehicle for warranty repairs.
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