1995 GMC SIERRA engine

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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What Kind of Oil to Use
Look for these two things:
CF-4/SH
CF-4/SH
is the best oil for your vehicle. However. if you can not find
CF4SH oil, you may use
CF4SG or CE/SH or CE/SG oil.
These may be listed as shown or in reverse order, for example
SHKF-4. Other letters may
also be listed, such as SH/CD, CE, CF4.
These letters show American Petroleum Institute
(API) levels of
quality.
NOTICE:
If you use oils that don’t have these designations, you can ca\
use
engine damage which is not covered
by your warranty.
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DIESEL ENGINES
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
SELECT THE SAE GRADE OIL BASE0 ON
THE EXPECTED TEMPERATURE RANGE
BEFORE NEXT OIL CHANGE
HOT
WEATHER r
:' F
I- 100
+ 60
+ 32
0
-20
- -
-
- -+16
-3 0
- - -16
- - -29
1 +
/c3'
FOR LOOK THIS @
SYMBOL
SAE 1OW-30
- SAE J 30
SAE 15W4
PREFERRED
above 0°F (-1 8°C)
WEATHER
00 NOT USE SAE 2OW-50 OR ANY OTHER
GRADE OIL NOT RECOMMENDED
a SAE 15W-40
As shown in the viscosity chart, SAE 15W-40 is best for your vehicle.
However, you can use
SAE IOW-30 if it's going to be colder than
32°F (0°C) before your next oil change. When it's very cold, below
0°F (-18"C), you should use SAE low-30 to improve cold starting.
Also, SAE 30 may be used at temperatures above freezing, 32°F (0°C).
These numbers on the
oil container show its viscosity, or thickness. Do
not use other viscosity oils such as SAE 10W-40 or SAE 20W-50.
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This doughnut-shaped logo (symbol) is used on most oil containers to help
you select the correct oil.
You should look for this
on the oil container, and use only those oils that
display the logo.
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:
0 Most trips are less than 5 to IO miles (8 to 16 km). This is particularly
important when outside temperatures are below freezing.
0 Most trips include extensive idling (such as frequent driving in stop and
e 00 traffic).
0 You operate your vehicle in dusty areas or off-road frequently.
0 You frequently tow a trailer or use a carrier on top of your vehicle.
If any of these is true for your vehicle, then you need to change your oil and
filter every
2,500 miles (4 000 km) or 3 months - whichever comes first.
If none of them is true, change the oil and filter every
5,000 miles (8 000
km) or 12 months - whichever comes first.
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.
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Air Cleaner
To avoid the possibility of un-filtered air being drawn into the engine, make
sure the air cleaner cover
is on straight and the wing nuts are properly
tightened. If there
is an arrow on the air cleaner cover, it should point to the
front of the engine.
Refer to the Maintenance Schedule to determine when to replace
the air
filter.
See “Scheduled Maintenance Services”
in the Index.
A CAUTION:
Operating the engine with the air cleaner off can cause you or
others to be burned. The air cleaner not only cleans the air, it
stops flame if the engjne backfires.
If it isn’t there, and the
engine backfires, you could be burned. Don’t drive with it
off,
and be careful working on the engine with the air cleaner off.
I NOTICE: I
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.
To remove the air cleaner filter on a gasoline engine or a 6.5 liter naturally
aspirated diesel engine, turn the wing nuts to the left. Remove the cover and
change
the filter.
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To remove the air cleaner filter on a 6.5 liter turbocharged diesel engine,
first remove the rubber elbow. Remember to observe the caution about
turbocharger blades on the rubber elbow.
Then, unhook the
cover retaining clips
and push the rear
of
the cover toward the
engine.
Automatic Transmission Fluid
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
GM 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.
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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