oil dipstick CHEVROLET CORVETTE 2004 5.G Owners Manual

Starter Interlock Feature
For your convenience and to avoid damage to your
starter, your vehicle is equipped with a starter interlock
feature. This feature will not allow you to crank the
engine while the vehicle is already running.
Racing or Other Competitive Driving
See your warranty book before using your vehicle
for racing or other competitive driving.
Notice:If you use your vehicle for racing or other
competitive driving, the engine may use more
oil than it would with normal use. Low oil levels can
damage the engine. Be sure to check the oil level
often during racing or other competitive driving and
keep the level at or near 1 quart (1 L) above the
upper mark that shows the proper operating range
on the engine oil dipstick. For information on
how to add oil, seeEngine Oil on page 5-13. After
the competitive driving, remove excess oil so
that the level on the dipstick is not above the upper
mark that shows the proper operating range.
Engine Coolant Heater
The engine coolant heater is located on the driver’s side
of the engine under the manifold.
In very cold weather, 0°F (−18°C) or colder, the engine
coolant heater can help. You will get easier starting
and better fuel economy during engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle. At
temperatures above 32°F (0°C), use of the coolant
heater is not required.
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A. Coolant Surge Tank and Pressure Cap. SeeEngine
Coolant on page 5-23.
B. Battery. SeeBattery on page 5-40.
C. Engine Oil Dipstick. SeeEngine Oil on page 5-13.
D. Engine Oil Fill Cap. SeeEngine Oil on page 5-13.
E. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-18.
F. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-35.
G. Brake Fluid Reservoir. SeeBrakes on page 5-37.
H. Clutch Master Cylinder Reservoir. SeeHydraulic
Clutch on page 5-22.
I. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-36.Engine Oil
If the LOW OIL LEVEL message on the Driver
Information Center comes on, it means you need to
check your engine oil level right away. For more
information, seeDriver Information Center (DIC) on
page 3-48.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is a good idea to check your engine oil level every
time you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be on
level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
Turn off the engine and give the oil a few minutes to
drain back into the oil pan. If you don’t, the oil dipstick
might not show the actual level.
Pull out the dipstick and clean it with a paper towel or a
cloth, then push it back in all the way. Remove it
again, keeping the tip down.
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When to Add Engine Oil
If the oil is below the cross-hatched area at the tip of
the dipstick, you will need to add at least one quart of oil.
But you must use the right kind. This section explains
what kind of oil to use. For engine oil crankcase
capacity, seeCapacities and Specications on
page 5-99.
See “Racing or Other Competitive Driving” under
Starting Your Engine on page 2-21for additional
information on engine oil.
Notice:Do not add too much oil. If your engine has
so much oil that the oil level gets above the
cross-hatched area that shows the proper operating
range, your engine could be damaged.SeeEngine Compartment
Overview on page 5-12for
the location of the
engine oil fill cap.
Be sure to add enough oil to put the level somewhere in
the proper operating range. Push the dipstick all the
way back in when you are through.
What Kind of Engine Oil to Use
Look for two things:
•GM4718M
Your vehicle’s engine requires a special oil meeting
GM Standard GM4718M. Oils meeting this
standard may be identified as synthetic. However,
not allsyntheticoils will meet this GM standard.
You should look for and use only an oil that meets
GM Standard GM4718M.
Notice:If you use oils that do not have the
GM4718M Standard designation, you can cause
engine damage not covered by your warranty.
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