1995 GMC SIERRA Owners Manual

Tampering With Noise Control System Prohibited
Federal law prohibits the following acts or the causing thereof
1. The removal or rendering inoperative by any person, other than for
purposes of maintenance, repair or replacement,
of any device or
element
of design incorporated into any new vehicle for the purpose of
noise control, prior to its sale or delivery to the ultimate purchaser or
while
it is in use; or
2. The use of the vehicle after such device or element of design has been
removed or rendered inoperative by any person.
Among those acts presumed
to constitute tampering are the acts listed
below.
Insulation:
Removal of noise shields or underhood insulation.
Engine:
0 Removal or rendering engine speed governor (if so equipped)
inoperative
so as to allow engine speed to exceed manufacturer
specifications.
Fan and Drive:
Removal of fan clutch (if so equipped) or rendering clutch inoperative.
0 Removal of fan shroud (if so equipped).
Air Intake:
0 Removal of air cleaner silencer.
Reversing air cleaner cover.
Exhaust:
0 Removal of muffler and/or resonator.
0 Removal of exhaust pipes and exhaust pipe clamps.
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Engine Oil (Gasoline Engines)
It’s a good idea to check your engine oil 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.
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.
To Check Engine Oil
Pull out the dipstick and clean it with a paper towel or cloth, then push it
back in all the way. Remove it again, keeping the tip down.
I
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When to Add Oil
If the oil is at or below the ADD mark, then you’ll need to add some oil. But
you must use the right kind. This part explains what kind of oil to use. For
crankcase capacity, see ”Capacities and Specifications”
in the Index.
NOTICE:
Don’t add too much oil. If your engine has so much oil that the
oil level gets above the upper
mark that shows the proper
operating range, your engine could be damaged.
The engine oil filler cap is located on the driver’s side engine valve cover.
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
Oils of the proper quality for your vehicle can be identified by looking for
the “Starburst” symbol. The “Starburst” symbol indicates that the oil has
been certified by the American Petroleum Institute
(API), and is prefenced
for use in your gasoline engine.
If
you change your own oil, be sure you use oil that has the “Starburst”
symbol on the front
of the oil container. If you have your oil changed for
you, be sure the
oil put into your engine is American Petroleum Institute
certified for gasoline engines.
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You should also use the proper viscosity oil for your vehicle, as shown in
the following chart:
LIGHT DUTY EMISSIONS - GASOLINE ENGINES
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE 011 FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
WEATHER
n
c
.
SAE IOW-30
L
LOOK
FOR THIS
SYMBOL
r31.
ip
L c,
SAE SW-30
PREFERRED
DO NOT USE SAE 2OW-50 OR ANY OTHER
GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE 5W-30 is best for your vehicle. However, you
can use SAE IOW-30 if it’s going to be 0°F (-I 8°C) or above. These
numbers on
an oil container show its viscosity, or thickness. Do not use
other viscosity oils, such as
SAE 2OW-SO.
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HEAVY DUTY EMISSIONS - GASOLINE ENGINES
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS ~ ~ ~~~
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT
THE LOWEST
SAE
VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
SA€ 5W-30
LOOK
FOR THIS
SYMBOL
SAE 10W-30
PREFERRED
above 0°F (‘1 8°C)
COLD
WEATHER
00 NOT USE SA€ 2OW-50 OR ANY OTHER
GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE 10W-30 is best for your vehicle. However, you
can use SAE SW-30 if it’s going to be colder than 60°F (16°C) before your
next oil change. When it‘s very cold, you should use SAE 5W-30. These
numbers on
an oil container show its viscosity, or thickness. Do not use
other viscosity
oils, such as SAE 2OW-50.
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NOTICE:
Use only engine oil with the American Petroleum Institute
Certified For Gasoline Engines “Starburst” symbol. Failure \
to
use the proper oil can result in engine damage not covered
by
your warranty.
GM Goodwrench@ oil (in Canada, GM Engine Oil) meets all the
requirements for your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your GM 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:
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.
You operate your vehicle in dusty areas or off-road frequently.
You frequently tow a trailer.
If any one
of these is true for your vehicle, then you need to change your oil
and filter every
3,000 miles (5 000 km) or 3 months - whichever comes
first.
Light Duty Emissions:
If none of them is true, change the oil and filter every 7,500 miles (12 500
km) or 12 months - whichever comes first.
Heavy Duty Emissions:
If none of them is true, change the oil and filter every 6,000 miles (10 000
km) or 12 months - whichever comes first.
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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 8OC) or colder. If your vehicle has this option,
see “Engine Coolant Heater’’ in the Index.
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 properly 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.
Engine Oil (Diesel Engines)
It’s 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.
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.
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To Check Engine Oil
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.
When to Add Oil
If the oil is at or below the ADD line, then you’ll need to add some oil. But
you must use the right kind. This part explains what kind of oil to use. For
crankcase capacity, see “Capacities and Specifications”
in the Index.
I I
I NOTICE: I
Don’t add too much oil. If your engine has so much oil that the
oil level gets above the proper operating range, your engine
could be damaged.
I I
The engine oil filler cap is located on a filler tube at the front of the 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.
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