Page 257 of 338

Downloaded from www.Manualslib.com manuals search engine 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
5,000 miles (8 000 km) or 3 months -- whichever
occurs first. (See “Check Oil Light” in the Index.)
If none of them is true, use the long triphighway
maintenance schedule. Change the oil and filter at the
first
5,000 miles (8 000 km) or 3 months -- whichever
occurs first. Then, change the oil and filter every
10,000 miles
( 16 000 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. (See “Check Oil Light”
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.
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Page 258 of 338
Downloaded from www.Manualslib.com manuals search engine Air Cleaner
L
The air cleaner is located behind the headlamps on the
passenger’s side
of the engine. Be sure the engine has
cooled before following these steps
to replace the air filter.
I
1. Unhook the five clips that attach the air cleaner lid to
the housing.
2. Loosen the retaining clamp on the air intake tube
and then disconnect the tube (as shown by the
arrow above).
3. Move the hose going to the coolant surge tank out
of the way so the air cleaner lid can be lifted.
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Page 259 of 338

Downloaded from www.Manualslib.com manuals search engine 4. Lift the lid, take out the air filter and remove any
loose debris that may be found laying in the air
cleaner base.
5. Install a new air filter element. See “Normal
Maintenance Replacement Parts”
in the Index.
To reinstall the air cleaner assembly, replace the air
cleaner lid, reattach the five clips, replace the air intake
tube and tighten the clamp. Return the coolant surge
tank hose
to its proper position.
Refer
to the Maintenance Schedule to determine when to
replace the air filter. See
“Scheduled Maintenance Services” in the
Maintenance Schedule booklet.
‘
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 flames
if the
engine 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.
NOTICE:
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.
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Page 260 of 338
Downloaded from www.Manualslib.com manuals search engine Passenger Compartment Air
Filter Replacement
The passenger compartment air filter traps most of the
pollen from the air entering your vehicle and air
circulated inside the vehicle. Like your vehicle’s air
cleaner filter, it may need to be changed periodically.
For how often to change the passenger compartment air
filter, see your Maintenance Schedule booklet. The access panel
for the passenger compartment
air
filter is on the grille, at the base of the windshield,
on the passenger’s side.
1. Open the hood of your vehicle.
2. Lift the engine compartment rear seal (see the arrow
in the illustration) and pull it back far enough to be
able to lift open the grille flap.
3. Unhook both retaining clips that secure the filter
in place.
4. Slide the filter toward the front of the car and then
pull the filter straight out.
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Page 261 of 338

Downloaded from www.Manualslib.com manuals search engine 5. Replace the filter by sliding it back in, reattaching
6. Replace the engine compartment rear seal.
7. Close the engine hood.
For the type of filter to use, see “Normal Maintenance
Replacement Parts” in the Index. both
retainer clips and closing the grille flap.
Auto-- ’ic Transmission Fluid
It is not necessary to check the transmission fluid level.
A transmission fluid leak is the only reason for fluid
loss. If a leak occurs, take your Catera to a Catera dealership
service department and have it repaired as
soon as possible. You may also have your fluid level
checked by your dealer or service center when
you have
your
oil 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:
0 In heavy city traffic where the outside temperature
0 In hilly or mountainous terrain.
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, the fluid and filter do not require changing.
regularly reaches
90°F (32°C) or
higher.
NOTICE:
We recommend you use only fluid labeled
DEXRON@-111, because fluid with that label is
made especially for your automatic transmission.
Damage caused by fluid other than
DEXRON-I11
is not covered by your new vehicle warranty.
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Page 262 of 338

Downloaded from www.Manualslib.com manuals search engine Rear Axle
When to Check Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant. See “Periodic Maintenance
Inspections” and “Scheduled Maintenance Services” in
the Maintenance Schedule booklet.
How to Check Lubricant
I
What to Use
Refer to the Maintenance Schedule to determine what
kind
of lubricant to use. See “Recommended Fluids and
Lubricants” in
the Maintenance Schedule booklet.
Engine Coolant
The cooling s stem in your vehicle is filled with new
DEX-COOL
J 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-COOL6 extended life coolant.
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.
If the level is below the bottom of the filler plug hole,
you’ll need
to add some lubricant. Add enough lubricant
to raise the level to the bottom of the filler plug hole.
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Page 263 of 338

Downloaded from www.Manualslib.com manuals search engine A 50/50 mixture of water and the proper coolant for
your Catera will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 "F (1 29 " C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
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 mix will. Your vehicle's coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, 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 mix of clean
water and
DEX-COOL@ coolant.
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Page 264 of 338
Downloaded from www.Manualslib.com manuals search engine NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn't be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
The surge tank is located behind the air cleaner on the
passenger's side of the engine.
The cooling system when hot is under a lot of pressure.
If the low coolant warning light on the instrument panel
appears,
you will need to add coolant.
6-21