
Downloaded from www.Manualslib.com manuals search engine To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is attached to the outside of the underhood
fuse box.
3. Plug it into a normal, grounded 110-volt AC outlet.
A CA’ TIQ‘T:
I
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into a properly grounded three-prong
110-volt AC outlet.
If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least 15
amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts.
If you don’t, it could
be damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your dealer in the area where you’ll be parking your
vehicle. The dealer can give you the best advice for
that particular area.
2-29

Downloaded from www.Manualslib.com manuals search engine It may vary with engine speed, outside temperature and
oil viscosity, but readings above the red area show the
normal operating range. Readings in the red area tell
you that the engine is low on oil, or that you might have
some other oil problem. See “Engine Oil” in
the Index.
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:
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
Low Oil Light
This warning light should
come on while you are
starting your engine.
If
the light doesn’t come on,
have
it repaired.
LOW OIL
I
If the light stays on after starting your engine, your
engine oil level may be too low. You may need to add
oil. See “Engine Oil’’ in the Index.
NOTICE:
The oil level monitoring system only checks the
oil level when you are starting your engine. It
does not keep monitoring the level once the
engine is running. Also, the oil level check only
works when the engine has been turned
off long
enough for the
oil to drain back into the oil pan.
2-84

Downloaded from www.Manualslib.com manuals search engine RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COUl STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANBE.
HOT
WEATHER
'OF "C -
+loo- +38 -
+EO- +27 -
c60- +16 -
+4Q- +b -
+20---7
0---18
-I I SAL SW-30 I
WOK
FOR THIS
SYMBOL
.bow 0°F (-1 8'C)
COLD
WEATHER
DO NOT USE SAE 2OW.50 OR ANY OTHER
As shown in the chart, if you have the 3800 engine, SAE
low-30 is best for your vehicle. However, you can use
SAE 5W-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 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.
3800 V6 Engine

Downloaded from www.Manualslib.com manuals search engine 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 first.
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 slun
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.
6-17

Downloaded from www.Manualslib.com manuals search 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.
Change both the fluid and filter every
15,000 miles
(25 000 km) if the vehicle is mainly driven under one
or more of these conditions:
0 In heavy city traffic where the outside temperature
0 In hilly or mountainous terrain.
Uses such as high performance operation.
regularly reaches
90°F (32°C) or
higher.
0 When doing frequent trailer towing.
0 Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, change
the fluid and filter every
50,000 miles (83 000 km).
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
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.
See “Scheduled Maintenance Services’’ in the Index.
6-20

Downloaded from www.Manualslib.com manuals search engine A 50/50 mixture of water and DEX-COOL@ coolant will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265°F (129°C).
0 Protect against rust and corrosion.
0 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.
What to Use
Use a mixture of one-half clean water (preferably
distilled)
and one-half DEX-COOL’ coolant which
won’t damage aluminum parts.
If you use this mixture,
you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water,
or some other
liquid like alcohol, can boil before the proper
coolant mixture will. Your vehicle’s coolant
warning system is set for the proper coolant
mixture. With plain water
or the wrong mixture,
your engine could get too hot but you wouldn’t
get the overheat warning. Your engine could
catch fire and you or others could be burned.
Use a
50/50 mixture of clean water and
DEX-COOL@ coolant.
6-27

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
I Short Trip/City Definition 1
Follow the Short TripKity Maintenance Schedule if any
one
of these conditions is true for your vehicle:
a
a
a
a
a
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.
If the vehicle is used for delivery service, police, taxi
or other commercial application.
One of the reasons you should follow this schedule if
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down soonex
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Tire Rotation.
Every 6,000 Miles (10 000 km) of Trailering: Rear
Axle Fluid Change (Vehicles Towing Trailers).
At the First 6,000 Miles (10 000 km): Rear Axle Fluid
Change (Limited-Slip Differential).
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving
in dusty conditions. Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
7-5

Downloaded from www.Manualslib.com manuals search engine I Short TripKity Maintenance Schedule I
15,000 Miles (25 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Inspect air cleaner filter if you are driving in dusty conditions. Replace
An Emission Control Service.
filter if necessary.
An Emission Control Service. (See footnote?.)
Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more
of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
rf you do not use your vehicle under any of these conditions, change the-fluid
andfilter every
50,000 miles (83 000 km).
(32°C) or higher.
18,000 Miles (30 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
0 Change the rear axle gear lubricant if vehicle is used to pull a trailer.
An Emission Control Service.
rotation pattern and additional information. (See footnote +.)
DATE I
1 MILEAGE ACTUAL I SERVICEDBY I
I DATE I
I MILEAGE ACTUAL I SERVICEDBY I
7-9