1998 CHEVROLET VENTURE oil change

This will be detected by the system and cause the light
to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It
will require at least one
full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to
fix any mechanical or electrical
problems that may have developed.
Oil Pressure Light
Your vehicle is equipped
with an oil pressure warning
light. Your oil pressure light
lets you know when you
may have a problem with
your engine
oil pressure.
When the engine is running and this light comes on, the
engine oil level may be too low. There may
also be
another problem causing low oil pressure. Don’t
keep driving if the
oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your
oil as soon as possible and have your
vehicle serviced.
NOTICE:
r
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
2-95
ProCarManuals.com

Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel.
See “Engine Coolant
Temperature Gage” in the Index.
You also have a low
coolant level light on your instrument panel. See “Low
Coolant Light’’ in the Index.
Overheated Engine Protection
Operating
Mode
Should an overheated engine condition exist, an
overheat protection mode which alternates firing groups
of three cylinders helps prevent engine damage. In this
mode, you will notice a significant loss in power and
engine performance. The low coolant light may come
on
and the temperature gage will indicate an overheat
condition exists. This emergency operating mode allows
your vehicle to be driven to a safe place in an
emergency. Towing
a trailer in the overheat protection
mode should be avoided.
NOTICE:
I
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss and change the
oil. See
“Engine Oil, When
to Change” in the Index.
5-13
ProCarManuals.com

A CAUTION:
8. Remove any rust or dirt
from the wheel bolts,
mounting surfaces and
spare wheel.
Rust or dirt on the wheel, or on the parts to
which it
is fastened, can make the wheel nuts
become loose after
a time. The wheel could come
off and cause an accident. When you change a
wheel, remove any rust or dirt from the places
where the wheel attaches
to the vehicle. In an
emergency, you can use a cloth or a paper towel
to do this; but be sure to use a scraper or wire
brush later,
if you need to, to get all the rust or
dirt off.
'
A CAUTION:
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel could
fall off, causing
a serious accident. -1
~~
9. Install the spare tire and replace the wheel nuts with
the rounded end of the nuts toward the wheel.
Tighten each nut by hand until the wheel is held
against the hub.
5-31
ProCarManuals.com

What Kind of Engine Oil to Use RECOMMENDED SAE YlSCOSlTT GRADE ENGINE OILS
Oils recommended for your vehicle can be identified
by loolung for the “Starburst” symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute (API).
Do not use any oil which
does not carry this Starburst symbol.
b _- 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.
You should also use the proper viscosity oil for your
vehicle, as shown in the following chart:
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE YlSCOSlTv GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
1 WEATHER
I- SA€ I 1OW-30
COLD
I WEATHER
DO NOT USE SA€ 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
6-13
ProCarManuals.com

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.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
"Starburst" symbol. Failure to use the
recommended oil can result in engine damage not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20°F (-29"C), consider using either an
SAE 5W-30
synthetic oil or an
SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. Your dealer is ready to
advise
if you think something should be added.
When to Change Engine Oil
If any one of these is true for you, use the short tripkity
maintenance schedule:
0
0
0
0
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.
You frequently tow
a trailer or use a carrier on top of
your vehicle.
The vehicle is used for delivery service, police, taxi
or other commercial application.
Driving under these conditions causes engine oil to
break down sooner.
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
occurs fust
.
6-14
ProCarManuals.com

If none of them is true, use the long triphighway
maintenance schedule. Change the oil and filter every
7,500 miles (12 500 km) or 12 months -- whichever
occurs first. Driving a vehicle with a fully warmed
engine under highway conditions causes engine oil to
break down slower.
.
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.)
Air Cleaner
Used oil can be a real threat to the environment. If you The air cleaner is located at the front of the engine
change your own oil, be sure
to drain all free-flowing Oil compartment (on the driver’s side of the vehicle),
from the filter before disposal. Don’t ever dispose of oil under the engine coolant reservoir.
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.
6-15
ProCarManuals.com

Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every
50,000 miles
(83 000 km) if the vehicle is mainly driven under one
or more of these conditions:
In heavy city traffic where the outside temperature
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery service.
regularly reaches
90°F (32 O C) or higher.
If you do
not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
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 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.
NOTICE:
Too much or too little fluid can damage your
transaxle.
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
transaxle fluid.
6-18
ProCarManuals.com

Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain
in your vehicle for 5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOLd extended life coolant.
J
The following explains your cooling system and how
to add coolant
when it is low. If you have a problem
with engine overheating, see “Engine Overheating”
in the Index.
A 50/50 mixture of water and DEX-COOL@
coolant will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 OF ( 129 O C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
~
~
NOTICE:
When adding coolant, it is important that you
use
only DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs
first. Damage caused by the
use
of coolant other than DEX-COOL@ is not
covered by your new vehicle warranty.
6-21
ProCarManuals.com