1995 CHEVROLET S10 fuel

Downloaded from www.Manualslib.com manuals search engine You should keep a record with all parts receipts and list the mileage and the
date
of any service work you perform. See “Maintenance Record” in the
Index.
NOTICE:
If you try to do your own service work without knowing enough
about it, your vehicle could be damaged.
Fuel
The 8th digit of your vehicle identification number (VIN) shows the code
letter for your engine. You will find the VIN at the top left
of your
instrument panel. (See “Vehicle Identification Number”
in the Index.)
Use regular unleaded gasoline rated at 87 octane or higher. With the
4.3L
(Code W) engine, use premium unleaded gasoline rated at 9 1 octane or
higher for high power performance, when towing
a trailer or with a high
payload requirement. But when operating with a light load
as a normal
condition, you may use middle grade or regular unleaded gasolines.
The gasoline you use should meet specifications
ASTM D48 14 in the
United States and CGSB
3.5-92 in Canada. These fuels should have the
proper additives,
so you should not have to add anything to the fuel.
In the United States and Canada, it’s easy to be sure you get the right kind
of gasoline (unleaded). You’ll see UNLEADED right on the pump. And
only unleaded nozzles will fit into your vehicle’s filler neck.
Be sure the posted octane
is at least 91 for premium, 89 for middle grade
and 87 for regular. If the octane
is less than 87, you may get a heavy
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Downloaded from www.Manualslib.com manuals search engine knocking noise when you drive. If it’s bad enough, it can damage your
engine.
If you’re using fuel rated at
91 octane or higher and you still hear heavy
knocking, your engine needs service. But don’t worry if
you hear a little
pinging noise when you’re accelerating or driving up a hill. That’s normal,
and
you don’t have to buy a higher octane fuel to get rid of it. It’s the heavy,
constant knock that means
you have a problem.
What about gasoline with blending materials that contain oxygen
(oxygenates), such as MTBE or alcohol?
MTBE is “methyl tertiary-butyl ether.” Fuel that is no more than 1 5%
MTBE is fine for your vehicle.
Ethanol is ethyl or grain alcohol. Properly-blended fuel that is no more than
10% ethanol is fine for your vehicle.
Methanol is methyl or wood alcohol.
NOTICE:
Fuel that is more than 5% methanol is bad for your vehicle.
Don’t use it. It can corrode metal parts in your fuel syst\
em and also damage plastic and rubber parts. That damage wouldn’t b\
e
covered under your warranty. And even at
5% or less, there
must be “cosolvents” and corrosion preventers in this fuel\

to
help avoid these problems.
Gasolines for Cleaner Air
Your use of gasoline with deposit control additives will help prevent
deposits from forming in your engine and fuel system. That helps keep your
engine
in tune and your emission control system working properly. It’s good
for your vehicle, and you’ll be doing your part for cleaner air.
Many gasolines are now blended with oxygenates. General Motors
recommends that you use gasolines with these blending materials, such as
MTBE and ethanol. By doing
so, you can help clean the air, especially in
those parts of the country that have high carbon monoxide levels.
In addition, some gasoline suppliers are now producing reformulated
gasolines. These gasolines are specially designed
to reduce vehicle
emissions. General Motors recommends that you use reformulated gasoline.
By doing
so, you can help clean the air, especially in those parts of the
country that have high ozone levels.
You should ask your service station operators if their gasolines contain
deposit control additives and oxygenates, and
if they have been
reformulated to reduce vehicle emissions.
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Downloaded from www.Manualslib.com manuals search engine Fuels in Foreign Countries
If you plan on driving in another country outside the U.S. or Canada,
unleaded fuel may be hard to find. Do not use leaded gasoline. If you use
even one tankful, your emission controls won’t work well or at all. With
continuous use, spark plugs can get fouled, the exhaust system can corrode,
and your engine oil can deteriorate quickly. Your vehicle’s oxygen sensor
will be damaged. All of that means costly repairs that wouldn’t be covered
by your warranty.
To check on fuel availability, ask an auto club, or contact a major oil
company that does business in the country where you’ll be driving.
You can also write us at the following address for advice. Just tell us where
you’re going and give your Vehicle Identification Number (VIN).
General Motors Overseas Distribution Corporation,
North American Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
L1H 8P7
Filling Your Tank
/”
.
The fuel cap is behind
a hinged door on the
left side
of your
vehicle.
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Downloaded from www.Manualslib.com manuals search engine While refueling, hang
the cap inside the fuel
door.
To take off the cap, turn it slowly to the left (counterclockwise).
I
Be careful not to spill gasoline. Clean gasoline from painted surfaces as
soon as possible. See “Cleaning the Outside of Your Vehicle” in the Index.
When you put the cap back
on, turn it to the right until you hear a clicking
noise.
I NOTICE:
If you need a new cap, be sure to get the right type. Your \
dealer
can get one for you. If you get the wrong type, it may not fit or
have proper venting, and your fuel tank and emissions system
might
be damaged.
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Downloaded from www.Manualslib.com manuals search engine Engine Oil
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.
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Downloaded from www.Manualslib.com manuals search engine You should also use the proper viscosity oil for your vehicle, as shown in
the following chart:
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
+20 -
0.
/F
+ 100 .
+80 -
+60 -
+40 -
COLD
WEATHER
- +3a
- +27
- +16
-+4
- -7
- - 18
LOOK
FOR THIS
SYMBOL
.
I SAE IOW-30
IF NEITHER SAE 5W-30 NOR SAE 1OW-30
GRADE MAY BE USED AT TEMPERATURES
ABOVE
40 DEGREES F (4 DEGREES C).
SAE 5w-30 GRADE OILS ARE AVAILABLE, SAE 30
DO NOT USE SAE 1OW-40, 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 1OW-30 if it’s going to be 0°F (-18°C) or above. These
numbers
on an oil container show its viscosity, or thickness. Do not use
other viscosity
oils, such as SAE 20W-50.
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Downloaded from www.Manualslib.com manuals search engine Lock Cylinders
To be sure your locks operate properly, they must be lubricated.
Refer
to the Maintenance Schedule to determine how often to lubricate them
and what type of lubricant to use.
You should not
use penetrating oils because they could wash out the factory
installed lubricant and cause the lock to bind. De-icers which contain
alcohol could also wash away the lubricant,
so be sure to lubricate the lock
after using a de-icer of this type.
Exhaust System
To help prevent damage to your exhaust system, do not continue to drive
your vehicle if you notice:
Engine misfiring
Loss of performance
Exhaust system components hanging lower than normal.
Loud exhaust system noises.
Other unusual operating conditions
Have your engine and exhaust system serviced regularly.
Three-way Catalytic Converter
Your vehicle’s three-way catalytic converter is designed to reduce the
pollutants in your vehicle’s exhaust. Use only unleaded fuel in your vehicle.
If you use leaded fuel, you could damage your three-way catalytic converter
and other engine components.
Engine Control Module System
This system has an oxygen (02) sensor that helps keep your engine’s
air-fuel mixture at a proper level. Use only unleaded fuel in your vehicle. If
you use leaded fuel, you could damage your oxygen
(02) sensor and affect
your vehicle’s emissions.
Malfunction Indicator Lamp (SERVICE ENGINE
SOON)
This light on your instrument panel lets you know when your emission
system needs service. See “Malfunction Indicator Lamp” in the Index.
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Downloaded from www.Manualslib.com manuals search engine NOTICE:
~~
Don’t let anyone tell you that underinflation or overinflation is
all right. It’s not. If your tires don’t have enough air
(underinflation) you can get:
Too much flexing
Too much heat
Tire overloading
Bad wear
Bad handling
Bad fuel economy.
If your tires have too much air (overinflati
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards. can
get
‘e re
When to Check
Check your tires once a month or more. Also, check the tire pressure of the
spare tire.
How to Check
Use a good quality pocket-type gage to check tire pressure. Simply looking
at the tires will not tell you the pressure, especially if you have radial tires
- which may look properly inflated even if they’re underinflated.
If your tires have valve caps, be sure to put them back on. They help prevent
leaks by keeping out dirt and moisture.
Tire Inspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles (10 000 to 13 000 km)
for any signs of unusual wear. If unusual wear is present, rotate your tires as
soon
as possible and check wheel alignment. Also check for damaged tires
or wheels. See “When it’s Time for New Tires” and “Wheel Replacement”
later in
this section for more information.
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