oil temperature CHEVROLET CORVETTE 1998 5.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. With
headlamps closed, route the cord in the opening
between the left hand headlamp door and the fender
panel.
Do not pinch the cord when closing the hood.
3. Plug it into a normal, grounded 1 10-volt AC outlet.
A CAUTIO
I
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into
a properly grounded three-prong
110-volt
AC outlet. If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least
15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away from
moving engine parts. If you don’t, it could
be damaged.
How long should you keep the coolant heater plugged in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your dealer in the area where you’ll be parking your
vehicle. The dealer can give you the best advice for that
particular area.
~ --
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Downloaded from www.Manualslib.com manuals search engine Engine Oil Pressure Gage
The engine oil pressure
gage shows the engine oil
pressure in psi (pounds per
square inch) or kPa
(kilopascals) when the
engine is running.
Oil pressure should be
20 to 80 psi (140 to 550 Wa).
(In certain situations such as long, extended idles on hot
days, it could read as low as
6 psi (40 kPa) and still be
considered normal.) It may vary with engine speed,
outside temperature and oil viscosity, but readings above
the shaded area show the normal operating range.
Readings in the shaded area tell you that the engine is
low on oil, or that you might have some other oil
problem. See “Engine Oil” in the Index. The
engine oil pressure can also be displayed using the
GAGES button on the Driver Information Center (DIC).
See “Driver Information Center” in the Index.
A CAUTION:
Don’t keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
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Downloaded from www.Manualslib.com manuals search engine I NOTICE:
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
Security Light
This light comes on to
remind you to
arrn your
I SECURITY
theft-deterrent system. If it
comes on and stays on when
I
your ignition is on, there
may be a problem with your
theft-deterrent system.
Check Gages, Light
CHECK
GAGES
This light will come on
briefly when you are
starting the engine. If the
light comes on and stays on
while you are driving, check
your gages to see
if they are
in the warning areas.
This light can come on for the following reasons:
0 Low Oil Pressure
0 High Coolant Temperature
0 High or Low Battery Voltage
0 Low Fuel Level
See “Universal Theft-Deterrent” and “PASS-Key
System” in the Index.
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Downloaded from www.Manualslib.com manuals search engine Driver Information Center (DIC)
The Driver Information Center (DIC) will display
information about how your vehicle is functioning, as
well as warning messages if a system problem is
detected. The DIC display area is located in the
instrument cluster below the speedometer and
tachometer, directly above the steering column.
The following buttons are on the DIC control panel which is located to the right of the cluster:
1 FUEL: Press this button to display fuel information
such as fuel economy and range.
2 GAGES: Use this button to display gage information
like oil pressure and temperature, coolant temperature,
transmission fluid temperature, battery voltage and
fronthear tire pressures.
3 TRIP: Use this button to display your total and trip
miles, the elapsed time function, your average speed and
the oil life.
4 OPTIONS: This button allows you to choose personal
options available with your vehicle such as security,
door locks, easy entry seats and language.
5 EM: Use this button to change the display between
English and metric units.
RESET: This button, used along with the other buttons,
will reset system functions and turn
off or acknowledge
messages on the DIC.
At the top of the DIC control buttons is a light sensor.
Be sure not to block the sensor or your lighting
functions may be disrupted.
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Downloaded from www.Manualslib.com manuals search engine Press the GAGE button again to display the oil
temperature, such as:
OIL TEMP 234 O F or
OILTEMP 112 O C
Press the GAGE button again to display the coolant
temperature, such as:
COOLANT TEMP 123 O F or
COOLANTTEMP51 O C
Press the GAGE button again to display the transmission
fluid temperature (automatics only), such as:
TRANS FLUID 123 O For
TRANS FLUID 51 O C
Press the GAGE button again to display the battery
voltage, such as:
0 BATTERY 13.5 VOLTS
Press the GAGE button again to display the tire pressure
for the front tires (left and right), such as:
FRONT L34 R33 PSI or
FRONT L 234 R228 kPa
Press the
GAGE button again to display the tire pressure
for the rear tires (left and right), such as:
REAR L34 R33 PSI or
0 REAR L234 R228 kPa

Downloaded from www.Manualslib.com manuals search engine If the engine coolant exceeds 255 “F (124”C), this
message is displayed. If you have been operating your
vehicle under normal driving conditions, you should
pull off from
the road, stop your vehicle and turn off the
engine as soon as possible. You can monitor the coolant
temperature with the GAGES button on the DIC or the
engine coolant gage on the instrument panel cluster. See
“Engine Overheating” in the Index.
HIGH OIL TEMPERATURE REDUCE ENGINE
RPM: You will hear four chimes when this message is
displayed. To acknowledge the warning, press the
RESET button. After you press the RESET button, a
message will be displayed and you will hear a chime
every minute until this condition changes. If you do not
press RESET, the message will remain on the digital
display until the condition changes.
If the engine oil temperature exceeds
320°F (1 60” C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your engine
is too hot, see “Engine Overheating’’ in the Index. Your
vehicle may need service,
so see your dealer. You can
monitor the oil temperature with the GAGES button on
the DIC.
HIGH TRANS TEMP: You will hear four chimes
when this message is displayed. To acknowledge this
warning, press the RESET button. After you press the
RESET button, the message will be displayed every
10 minutes until the condition changes. If you do not
press RESET, the message remains on the display until
the condition changes.
If the transmission fluid temperature rises above 263°F
(128°C) or rises rapidly, this message is displayed. The
transmission may shift gears or apply the torque
converter clutch to reduce the fluid temperature. Driving
aggressively or driving on long hills can cause the
transmission fluid temperature to be higher than normal.
If this message appears, you may continue to drive at a
slower speed. You should also monitor the transmission
fluid temperature and allow it to cool to at least 230°F
(1 10°C). The transmission fluid temperature can be
monitored with the GAGES button on the DIC. See
“Automatic Transmission Fluid” in the Index. You
should also check the engine coolant temperature.
If it is
also hot, see “Engine Overheating” in the Index.
If the HIGH TRANS TEMP message is displayed
during normal vehicle operation on flat roads, your
vehicle may need service. See your dealer for an
inspection.
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Downloaded from www.Manualslib.com manuals search engine a
+' LOWER: This setting directs most of the air
through the lower ducts to the floor area of the vehicle with some of the air also directed toward the windshield
and side window vents.
+# DEFOG: This setting divides the air between the
windshield and lower outlets with a small amount directed toward the side window vents. This is useful
when fog appears on the windshield or side glass due to
rain or snowy conditions.
DEFROST Use this setting to quickly remove fog
or frost from the windshield. This setting directs most of
the airflow to the windshield with
a small amount
directed toward the lower and side window outlets.
Mode Buttons
These buttons control the air intake, the air conditioning and the rear window defogger operation.
FRESH AIR: Press this button and it will bring
outside air into your vehicle. The light on the button will
come on when operating. Use this setting while trying to
defrost or defog windows to help clear moisture.
RECIRCULATE: Press this button to limit the
amount of fresh air entering your vehicle by
recirculating most of the
air inside your vehicle. The
light on the button will come on when operating. This
setting is helpful when you are trying to cool the air
quickly or to limit odors entering your vehicle.
RECIRCULATE cannot be used while in the DEFROST
or
DEFOG modes.
e A/C: This button turns the air conditioning
compressor
off or on under most conditions. The light
on the A/C button comes on when the compressor is
operating. The air conditioning does not operate at
temperatures below approximately
35 OF to 40°F (2" C
to 4°C). The air conditioning cools and dehumidifies the
air coming into the vehicle. The air conditioning cannot
be turned
off in DEFROST as it helps to remove
moisture from the vehicle. It also helps to keep the
windows clear.
The air conditioning may be forced
off at high engine
speeds
or high engine oil or coolant temperatures.
3-3

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an engine coolant temperature gage on the
instrument cluster and a COOLANT OVER TEMP
message on the Driver Information Center
(DIC).
Overheated Engine Protection
Operating Mode
Should a low coolant condition exist and the messages
COOLANT OVERTEMP and REDUCED ENGINE
POWER are displayed, along with the Check Engine
light, an overheat protection mode which alternates
firing groups of four cylinders helps prevent engine
damage. In this mode, you will notice a loss in power
and engine performance. This operating mode allows
your vehicle to be driven to a safe place in an
emergency; you may drive up
to 50 miles (80 km).
1 NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and reset
the oil life monitor. See “Engine Oil, When to
Change” in the Index.
5-13

Downloaded from www.Manualslib.com manuals search engine RECOMMENDED SAL VlSCOSlTT GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE OIL
FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
’TC)
~fi + 20
0
SAE SW-30 PREFERRED
COLD
WEATHER
FOR THIS
WOK
SYMBOL
,I SAE I 1OW-30
DO NOT USE SAE 2OW-50 OR ANY OTHER
GRADE OIL NOT RECOMMENDED
0 SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is best
for your vehicle. However, you can use
SAE
1OW-30 if it’s going to be 0°F (-18°C) or above.’
These numbers on an oil container show its viscosity,
or thickness.
Do not use other viscosity oils such as
SAE
2OW-50.
Oils meeting these
requirements should also
have the “Starburst” symbol on the container.
This symbol indicates that the oil has been certified by
the American Petroleum Institute (API).
Do not use any
oil which does not
carry this Starburst symbol.
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Downloaded from www.Manualslib.com manuals search engine You should look for this on the oil container, and use
only those oils that are identified as meeting GM
Standard 4718M and have the Starburst symbol on the
front of the oil container.
Your Corvette engine is filled at the factory with a
Mobil
l@ synthetic oil, which meets all requirements
for your vehicle.
Substitute Engine Oil: When adding oil to maintain
engine oil level, oil meeting GM Standard GM4718M
may not be available. You can add substitute oil
designated SAE 5W-30 with the “Starburst” symbol at
all temperatures. If temperatures are above
0 OF (- 18 O C),
you may substitute
SAE low-30 with the “Starburst”
symbol. Substitute oil not meeting GM Standard
GM4718M should not be used for an oil change.
Engine Oil Additives
Don’t add anything to your oil. Your dealer is ready to
advise if you think something should be added.
When to Change Engine Oil
Your Corvette has an Engine Oil Life Monitor. This
feature will let you know when to change your oil and
filter
-- 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
(whichever occurs first) without an oil change. Use
engine oil meeting the GM Standard GM47 18M.
The system 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 lun) or sooner if the CHANGE OIL
light comes on. Remember to reset the Engine Oil Life
Monitor when the oil has been changed. For more
.information, see “Engine Oil Life Monitor” in the Index.
When Changing the Engine Oil
There is a special procedure for changing engine oil,
contact your dealer for additional information or the
procedure can be found in a Corvette Service Manual.
To purchase a service manual, see “Service and Owner
Publications” in the Index.
How to Reset the Engine Oil Life Monitor
Press RESET to acknowledge the CHANGE OIL SOON
warning. The oil page will then show a message such as
OIL LIFE
0%. To reset the monitor, press and hold
RESET for two seconds. You will then receive a
message such as OIL LIFE
99%.
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