1995 CHEVROLET CORVETTE Owners Manual

Downloaded from www.Manualslib.com manuals search engine LT5 Engine
Just fill it enough
to put the level somewhere in the
proper operating range. Push the
dipstick all the way back in when
you’re through. What Kind of Oil to Use
Look for two things:
0 GM4718M
The Corvette engine requires a special oil meeting
GM Standard GM4718M. Oils meeting this Standard
may be identified as synthetic. However, not all
synthetic oils will meet this GM Standard. You
should look for and use only an oil that meets GM
Standard GM47 1 8M.
NOTICE:
If you use oils that don’t have the GM4718M
Standard designation, you can cause engine
damage not covered by your warranty.
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Downloaded from www.Manualslib.com manuals search engine RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE MNGE.
HOT
WEATHER
LOOK
FOR THIS
SYMBOL
-- 1-J SAE 1OW-30
SAE 5W-30 PREFERRED
COLD
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
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 (-1S.OC) or above.
These numbers on an
oil container show its viscosity,
or thickness.
Do not use other viscosity oils such as
SAE
20W-50.
Oils meeting these
requirements should also
have the “Starburst” symbol
on the container.
The “Starburst” symbol indicates that the
oil has been
certified by the American Petroleum Institute (API), and
is preferred for your gasoline engine. These oils may
also be identified
as API SH.
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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
1 @ synthetic oil, which meets all requirements for
your vehicle.
Substitute Oil (LTl Only): When adding oil to
maintain engine oil level, oil meeting GM Standard
GM47
18M may not be available. You can add substitute
oil designated
SAE 5W-30 with the “Starburst” symbol
or API Service SH at all temperatures. If temperatures
are above
0” F (- 18 O C), you may substitute SAE
1OW-30 with the “Starburst” symbol or API Service
SH
oil. This oil should not be used for an oil change.
Substitute Oil (LT5 Only): When adding oil to
maintain engine oil level,
if an oil meeting GM Standard
GM47
18M is not available, you can use oil designated
SAE 1OW-30 with the “Starburst” symbol or API
~ Service SH at all temperatures. This oil should not be
used for
an oil change.
Engine Oil Additives
Don’t add anything to your oil. Your Chevrolet dealer is
ready to advise if you think something should be added.
When to Change Engine Oil
See if any one of these is true for you:
0 Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop and
go traffic).
Most trips are through dusty areas.
If any one of these is true for your vehicle, you need to
change your oil and filter every 3,000 miles
(5 000 km)
or 3 months -- whichever comes first. (See “Engine Oil
Life Monitor” in the Index.)
If none of them is true, change the oil and filter every
7,500 miles (12 500 km) or 12 months -- whichever
comes first. (See “Engine Oil Life Monitor” in the
Index.)
Engine Coolant Heater
An engine coolant heater can be a big help if you have
to
park outside in very cold weather, 0” F (- 1 8 O C) or
colder. If your vehicle has this feature, see “Engine
Coolant Heater” in the Index.
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Downloaded from www.Manualslib.com manuals search engine What to Do with Used Oil
Did you know that used engine oil contains certain
elements that
may be unhealthy for your skin and could
even cause cancer? Don’t let used oil stay on your skin
for very long. Clean your skin and nails with soap and
water, or a good hand cleaner. Wash or throw away
clothing or rags containing used engine oil. (See the
manufacturer’s warnings about the use and disposal of
oil products.)
Used oil can be a real threat to the environment. If you
change your own oil, be sure to drain all free-flowing oil
from the filter before disposal. Don’t ever dispose
of oil
by putting it in the trash, pouring it on the ground, into
sewers, or into streams or bodies of water. Instead,
recycle it
by taking it to a place that collects used oil. If
you have a problem properly disposing of your used oil,
ask your dealer, a service station or a local recycling
center for help.
Air Cleaner
Refer to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services” in the Index.
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Downloaded from www.Manualslib.com manuals search engine I NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
Air Filter Replacement
To remove the air filter:
1. Unscrew the three knobs.
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Downloaded from www.Manualslib.com manuals search engine 2. Disconnect the clamp from the manifold. 3. Pull the air cleaner straight up.
4. Open the air cleaner and remove the filter.
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Downloaded from www.Manualslib.com manuals search engine Automatic Transmission Fluid
5. Reverse the steps.
0 Align the tabs to the slots in the bottom of the
0 Install the short knob into the middle hole first.
assembly before you
replace it.
Then install the longer knobs into the outer holes.
When to Check and Change
A good time to check your automatic transmission fluid
level is when the engine oil is changed. Refer to the
Maintenance Schedule to determine when to change
your fluid. See “Scheduled Maintenance Services” in the
Index.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your Chevrolet dealer
Service Department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading on the
dipstick.
I
I NOTICE:
Too much or too little fluid can damage your
transmission.
Too much can mean that some of
the fluid could come out and fall on hot engine
parts or exhaust system parts, starting a fire. Be sure to get an accurate reading if you check your
transmission fluid.
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Downloaded from www.Manualslib.com manuals search engine Wait at least 30 minutes before checking the
transmission fluid level if you have been driving:
When outside temperatures are above 90°F (32°C).
At high speed for quite a while.
In heavy traffic -- especially in hot weather.
To get the right reading, the fluid should be at normal
operating temperature, which is
1 80°F to 200°F (82 "C
to 93 " C).
To check transmission fluid hot: Get the vehicle
warmed up by driving about
15 miles (24 km) when
outside temperatures are above 50°F
(10°C). You may
have to drive longer to bring the fluid to 180°F to
200" F
(82°C to 93 "C) in colder outside temperatures. See
"Automatic Transmission Fluid Temperature Reading"
in the Index.
To check transmission fluid cold: A cold check is
made after the vehicle has been sitting for eight hours or
more with the engine off and is used only as a reference.
Let the engine run at idle for five minutes if outside
temperatures are
50°F (10°C) or more. If it's colder
than
50°F (IOOC), you may have to idle the engine
longer. Should the fluid level be low during a cold
check, you
must perform a hot check before adding
fluid. This will give you
a more accurate reading of the
fluid level.
To check the fluid hot or cold
Park your vehicle on a level place. Keep the engine
running.
in PARK (P).
With the parking brake applied, place the shift lever
With your foot on the brake pedal, move the shift
lever through each gear range, pausing for about
three seconds in each range. Then, position the shift
lever in PARK (P).
Let the engine run at idle for three minutes or more.
Then, without shutting off the engine, follow these steps:
1. Pull out the dipstick and wipe it with a clean rag or
paper towel.
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