1993 CHEVROLET S10 Owners Manual

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Engine Oil
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 around.
a
KO609
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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KO61 0
. 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
lower.
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 section \
explains what
kind
of oil to use. For crankcase capacity, see “Capacities and Specification\
s”
in the Index.
NOTICE I
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Just till 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 three things:
SG “SG” must be on the oil container, either by itself
or combined with
other quality designations, such as “SG/CC,” “SG/CD,” \
“SF, SG, CC”,
etc. These letters show American Petroleum Institute (API) lev\
els
of
quality.
NOTICE
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Service & Appearance Care
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SAE 1OW-30
Ib NEITH€H SA€ 5W-30 NOR SAE 1OW-30
GRADE OILS ARE AVAILABLE, SAE 30
GRADE MAY BE USED AT TEMPERATURFS
ABOVE
40 DEGREES F (4 DEGREES C).
DO NOT USE SAE 1OW-40, SAE 20W-50 OL.
ANY OTHER GRADE OIL NOT RECOMMENDED
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PO344
SAE 5W-30
As shown in this chart,
SAE 5W-30 is best for your vehicle. However,
you can use
SAE IOW-30 if it's going to be 0°F (-1 8°C) or above.
These numbers on an
oil container show its viscosity, or thickness. Do
not use other viscosity oils such as SAE 1OW-40 or SAE 2OW-50.
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Oils with these words on the container will help you save fuel.
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 c)k
See if any one of these is true for you:
Most trips are less than 4 miles (6 km).
It’s below freezing outside and most trips are less than 10 miles
(16 km).
The engine is at low speed most of the time (as in door-to-door delivery,
You tow a trailer often.
or in stop-and-go traffic).
Most trips are through dusty places.
The vehicle is frequently operated off-road.
If any one of these is true for your vehicle, you need to chang\
e your oil and
filter every 3,000 miles (5000 km) or 3 months-whichever comes first.
If none of them are true, change the oil every 7,500 miles (12 500 km) or
12 months-whichever comes first. Change the filter at the first oil change
and at every other oil change after that.
If your vehicle has 4-wheel drive, you ,will have a remote oil filter located
under the hood.
It is mounted to the front left inner fender, behind the
headlights.
Engine Block Heater:
An engine block heater can be a big help if you have to park outside in very
cold weather,
-0°F (-18°C) or colder. If your vehicle has this option, see
“Engine Block Heater” in the Index.
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What to Do with Used Oil:
I A Used engine oil contains things that have caused skin cancer in
- laboratory animals. 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
I used engine oil. I
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 disposing of your used oil, ask
your dealer, a service station
or a local recycling center for help.
Air Cleaner
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KO61 8
To remove the round air cleaner filter for the 2.5L (VIN A), 2.8L (VIN R), and
4.3L (VIN
Z) engines, turn the wing nut counterclockwise. Remove the cover
and change the filter. Care should be taken during reassembly to ensure that
the cover is on straight and the wingnut properly tightened.
To remove the square air cleaner filter for the 4.3L (VIN W) high performance
engine, loosen both wingnuts (one on the duct and one on the\
cover).
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Lift the air cleaner assembly up from the vehicle. Open both \
clamps and lift
off cover to change the filter. While reassembling the air cleaner assembly, \
ensure that the air cleaner cover tabs are fully inserted into\
the slots in the
air cleaner housing, the two wingscrews are secure, and the
PCV air tube is
properly seated in the left hand valve cover.
Refer
to the Maintenance Schedule to determine when to replace the air
cleaner filter. See "Scheduled Maintenance Services'' in the Index.
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4 Operating thie engine with the air cleaner off can cause you or others
i to be burned. The air deaner not only cleans the air, it stops filame
if the engine backfires. If it isn't there, and the englinle backfires, yolu
could be burned. Doin't drive with it dig and be careful wor'king oin
the enlgine with tihe air cleane:r off.
I YOTICE I
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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 de\
termine 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 choo\
se to have this
done at a dealership 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 NOTICE
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.
While pulling a trailer.
To get the right reading, the fluid must be at normal operating \
temperature,
which is 180°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). If
it’s colder then 50°F (IO’C), drive the vehicle in D (3rd gear) until the
temperature gage moves and then remains steady for ten minutes.\
Then
follow the hot check procedures.
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 (lO°C), you
may have to idle the engine longer. A hot check must follow when fluid is
added during a cold check.
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