CHEVROLET CORVETTE 1999 5.G Owners Manual

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7-3 How This Section is Organized
This maintenance schedule is divided into five parts:
ªPart A: Scheduled Maintenance Servicesº shows
what to have done and how often. Some of these
services can be complex, so unless you are technically
qualified and have the necessary equipment, you should
let your dealer's service department or another qualified
service center do these jobs.
CAUTION:
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.
If you are skilled enough to do some work on your
vehicle, you will probably want to get the service
information. See ªService and Owner Publicationsº in
the Index.ªPart B: Owner Checks and Servicesº tells you
what should be checked and when. It also explains what
you can easily do to help keep your vehicle in
good condition.
ªPart C: Periodic Maintenance Inspectionsº
explains important inspections that your dealer's service
department or another qualified service center
should perform.
ªPart D: Recommended Fluids and Lubricantsº
lists some recommended products 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.
ªPart E: Maintenance Recordº provides a place
for you to record the maintenance performed on your
vehicle. Whenever any maintenance is performed, be
sure to write it down in this part. This will help you
determine when your next maintenance should be done.
In addition, it is a good idea to keep your maintenance
receipts. They may be needed to qualify your vehicle for
warranty repairs.

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7-4
Part A: Scheduled
Maintenance Services
Using Your Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we don't know
exactly how you'll drive it. You may drive very short
distances only a few times a week. Or you may drive
long distances all the time in very hot, dusty weather.
You may use your vehicle in making deliveries. Or
you may drive it to work, to do errands or in many
other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read the
following and note how you drive. If you have any
questions on how to keep your vehicle in good
condition, see your dealer.This part tells you the maintenance services you should
have done and when you should schedule them. If you
go to your dealer for your service needs, you'll know
that GM
-trained and supported service people will
perform the work using genuine GM parts.
The proper fluids and lubricants to use are listed in
Part D. Make sure whoever services your vehicle uses
these. All parts should be replaced and all necessary
repairs done before you or anyone else drives
the vehicle.
This schedule is for vehicles that:

carry passengers and cargo within recommended
limits. You will find these limits on your vehicle's
Tire
-Loading Information label. See ªLoading Your
Vehicleº in the Index.

are driven on reasonable road surfaces within legal
driving limits.

use the recommended fuel. See ªFuelº in the Index.

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Scheduled Maintenance
7-5
The services shown in this schedule up to 100,000 miles
(160 000 km) should be performed after 100,000 miles
(160 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªPart B: Owner Checks and Services,º ªPart C:
Periodic Maintenance Inspectionsº and ªPart D:
Recommended Fluids and Lubricantsº following Part A.Footnotes

The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emissions warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.

Scheduled Maintenance
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7-6Engine Oil Scheduled Maintenance
Change engine oil as indicated by the Engine Oil Life
Monitor (or every 12 months, whichever occurs
first). Reset the monitor. The monitor will show you
when to change the oil
-- usually between 3,000 miles
(5 000 km) and 10,000 miles (16 000 km) since your
last oil change. Under severe conditions, the indicator
may come on before 3,000 miles (5 000 km). Never
drive your vehicle more than 10,000 miles (16 000 km)
or 12 months without an oil change. Use engine oil
meeting the GM Standard GM4718M.The Engine Oil Life Monitor won't detect dust in the
oil. So if you drive in a dusty area, be sure to change
your oil every 3,000 miles (5 000 km) or sooner if the
CHANGE OIL SOON message comes on. Remember to
reset the Oil Life Monitor when the oil has been
changed. See ªEngine Oil Life Monitorº in the Index for
more information on resetting the monitor.

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Scheduled Maintenance
7-7
ENGINE OIL CHANGED
DATEACTUAL
MILEAGESERVICED BY:
ENGINE OIL CHANGED
DATEACTUAL
MILEAGESERVICED BY:

Scheduled Maintenance
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7-8
ENGINE OIL CHANGED
DATEACTUAL
MILEAGESERVICED BY:
ENGINE OIL CHANGED
DATEACTUAL
MILEAGESERVICED BY:

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Scheduled Maintenance
7-9
15,000 Miles (24 000 km)
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote
.)
30,000 Miles (48 000 km)
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
.)
45,000 Miles (72 000 km)
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote
.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Scheduled Maintenance
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7-10
50,000 Miles (80 000 km)
Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches 90F
(32C) or higher.
± In hilly or mountainous terrain.
± Uses such as high performance operation.
If you do not use your vehicle under any of these conditions, change the fluid
and filter at 100,000 miles (166 000 km). Manual transmission fluid doesn't
require change.
60,000 Miles (96 000 km)
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
.)
Inspect engine accessory drive belt.
An Emission Control Service.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

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Scheduled Maintenance
7-11
75,000 Miles (120 000 km)
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote
.)
90,000 Miles (144 000 km)
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
.)
100,000 Miles (160 000 km)
Replace spark plugs.
An Emission Control Service.
Inspect spark plug wires.
An Emission Control Service.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Scheduled Maintenance
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7-12
Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches 90
F
(32
C) or higher.
± In hilly or mountainous terrain.
± Uses such as high performance operation.
Manual transmission fluid doesn't require change.
If you haven't used your vehicle under severe conditions listed previously and,
therefore, haven't changed your automatic transmission fluid, change both the
fluid and filter. Manual transmission fluid doesn't require change.
150,000 Miles (240 000 km)
Drain, flush and refill the cooling system (or every 60 months since last
service, whichever occurs first). See ªEngine Coolantº in the Index for what
to use.
An Emission Control Service. ACTUAL
SERVICED BY:MILEAGE
DATE