Engine Oil Additives
Don’t add anything to your oil. Your Geo
dealer is ready to advise
if you think
something should be added.
When to Change Engine Oil
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 (1 6 km).
The engine is at low speed most of the
time (as
in door-to-door delivery, or
stop-and-go traffic).
You tow a trailer often.
Most trips are through dusty places.
The vehicle is frequently operated
If any one of these is true for your
vehicle, then you need to change your
and filter every
3,000 miles (5 000 km) or
3 months - whichever comes first.
If none of them is true, change oil and
filter every
7,500 miles (1 2 500 km) or
7.5 months - whichever comes first.
off-road.
Engine
Coolant Heater (Engine Block
Heater)
An engine coolant heater can be a big
help
if you have to park outside in very
cold weather,
0°F (-I 8°C) or colder. If
your vehicle has this option, see “Engine
Coolant Heater”
in the Index.
What to Do with Used Oil
Did you know that used engine oil
contains 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-tlowing 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.
Air Cleaner
Refer to the Maintenance Schedule to
detertnine when to replace the
air filter.
See “Scheduled Maintenance Services“
ir
the Index.
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 flame 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.
165.
ProCarManuals.com
I A utomatic Transmission FIuid
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 determine 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 choose to have
this
done at your Geo 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 tluid 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 tluid. Wait
at least 30 minutes before checking
the transmission fluid level
if you have
been driving:
0 When outside temperatures are above
0 At high speed for quite a while.
0 In heavy traffic - especially in hot
While pulling a trailer.
To get the right reading, the fluid should
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 IS
miles (24 km) when outside temperatures
are above 50°F
( 10°C). If it’s colder than
50°F (IOOC), drive the vehicle in “D”
(Third Gear) until the engine 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 (IO’C),
you
may have to idle the engine longer.
90°F (32°C).
weather. Should
the
fluid level be low during a
cold check, you must perform a hot check
before adding fluid. This will give you a
more accurate reading
of the fluid level.
To check the fluid hot or cold
0 Park your vehicle on a level place.
0 With the parking brake applied, place
0 With your foot on the brake pedal,
Keep the
engine running.
the shift lever
in “P’ (Park).
move the shift lever through each gear
range, pausing for about three seconds
in each range. Then, position the shift
lever
in “P” (Park).
minutes or more.
0 Let the engine run at idle for three
167.,
ProCarManuals.com
Service and Appearance Care
Then, without shutting off the engine,
follow these steps:
1. Pull out the dipstick and wipe it with a
clean rag or paper towel.
2. Push it back in all the way, wait three
seconds and then pull it back out
again.
. . .I68
~
3. Check both sides of the dipstick, and
read the lower level. The fluid level
must be in the “COLD’ area for a
cold check or
in the “HOT” area or
cross-hatched area for a hot check.
4. If the fluid level is in the acceptable
range, push the dipstick back
in all
the way.
How to Add Fluid
Refer to the Maintenance Schedule to
determine what kind of transmission fluid
to use. See “Recommended Fluids and
Lubricants”
in the Index.
[f the fluid level is low, add only enough
of the proper fluid to bring the level up to
the “COLD” area for a cold check or the
“HOT” area for a hot check. It doesn’t take
much fluid, generally less than a
pint.
Don’t overfill. We recommend you use
only fluid labeled DEXRON@-III
or
DEXRON@-IIE, because fluids with that
label are made especially for
your
automatic transmission. Dama e caused
by fluid other than DEXRON
8 -m or
DEXRON@-IIE is not covered by your
new vehicle warranty.
0 After adding fluid, recheck the fluid
level as described under “How to
Check.”
obtained, push
the dipstick back in
all the way.
When the correct fluid level is
Manual Transmission Fluid
When to Check and Change
A good time to have it checked is when
the engine oil is changed. Refer to the
Maintenance Schedule to determine when
to change your transmission fluid. 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 Geo dealership Service
Department.
ProCarManuals.com
~~
~~ ~ ~~~~ ~ Service and Appearance Care
Four- Wheel Drive
Most
lubricant checks in this section also
apply to four-wheel-drive vehicles.
However, they have
two additional
systems that need lubricatiog.
Transfer Case
When to Check qnd Change Lubricant
Refer to the Maintenance Schedule to
determine how often to check the
lubricant and when to change
it. See
“Scheduled Maintenance Services”
in the
Index.
How to Check Lubricant
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.
What to Use
Refer to the Maintenance Schedule to
determine what kind of lybricant to use.
See “Recommended Fluids and
Lubricants”
in the Index.
Front Axle
When
to Check and Change Lubricant
Refer to the Maintenance Schedule to a
determine how often to check the
lubricant and when to change it. See
“Periodic Maintenance Inspections” and
“Scheduled Maintenance Services”
in the
Index.
How to Check Lubricant
If the level is below the bottom of the
filler plug hole, you’ll need to add some
lubricant.
If the differential is at operating
temperature (warm), add enough lubricant
to raise the level to the bottom of the filler
plug hole.
If the differential
is cold, add enough
lubricant to raise the level to
1/2 inch (12
mm) below the filler plug hole.
What to Use
Refer to the Maintenance Schedule to
determine
what kind of lubricant to use.
See “Recommended Fluids and
Lubricants”
in the Index.
Engine 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.
The proper coolant for your Geo will:
Give freezing protection down to
-20°F (-29”C), or -34°F (-37°C)
in
Canada and for vehicles with the cold
climate option.
Give boiling protection up to 258°F
(125°C).
Protect against rust and corrosion.
Help keep the proper engine
temperature.
Let the warning lights work as they
should.
What to Use:
Use a mixture of one-half clean water
(preferably distilled) and one-half
antifreeze that meets “GM Specification
6038-M,” which won’t damage aluminum
parts.
You can also use a recycled coolant
conforming to
“GM Specification
6038-M”
with a complete coolant flush
. . .I70
ProCarManuals.com
and refill. If you use this mixture. you
don't need to add anything else.
A CAUTION:
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
cool-
ant 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 a proper antifreeze.
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 war-
ranty.
Too much water in the mix can
freeze and crack the engine, radiator,
heater core and other parts. Some conditions, such
as air
trapped in
the cooling system, can af't'ect the coolant
level
in the radiator. Check the coolant
level when the engine is cold and follow
the steps under "Adding Coolant" for the
proper way
to add coolant.
If you have to add coolant Inore 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 thc
system. These can
be harmful.
%-Valve Engine
Adding Coolant
To Check Coolant: When your engine is
cold.
the coolant level should be at
"LOW," or a little higher. When your
engine
is warm. the level should be up to
"FULL." or a little higher.
171 ..
ProCarManuals.com
correct a leak. If you add fluid when your
linings are worn, then you’ll have too
much fluid when you get new brake
linings. You should add (or remove)
brake fluid, as necessary, only when work
is done on the brake hydraulic system.
Refer to the Maintenance Schedple to
determine when to check
yoqr drake
fluid. See “Periodic Maintenance
Inspections” in the Index.
To Check Brake Fluid:
You can check the brake fluid without
taking
off the cap. Just look at the
windows on the brake fluid reservoir. The
fluid levels should be above “MIN.” If
they aren’t, have your brake system
checked to see if there is a leak.
After work is done
on the brake hydraulic
system, make sure the levels are above
“MIN’ and below the top
of each
window.
What to Add:
When you do need brake fluid, use only
DOT-3 brake fluid
- such as Delco-
Supreme 11s (GM Part
No. 1052535).
Use new brake fluid from a sealed container
only, and always clean the brakl
fluid reservoir cap before removing it.
NOTICE:
Don’t let someone put in the
wrong kind of fluid. For example,
just a few drops of mineral-based
oil, such as engine oil, in your
brake system can damage brake system parts
so badly that they’ll
have to be replaced.
Brake fluid can damage paint, so
be careful not to spill brake fluid
on your vehicle. If
you do, wash it
off immediately. See “Appearance
Care” in the Index.
Brake Wear
Your Geo has front disc brakes and rear
drum brakes.
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads are
worn and new pads are needed. The
sound may come and
go or be heard all
the time your vehicle is moving (except
when you are pushing on the brake pedal
firmly).
175 ...
ProCarManuals.com
Service and Appearance Care
Use a clean cloth or sponge, and
change to
a clean area often. A soft
brush
may be used if stains are
stubborn.
Use solvent-type cleaners
in a
well-ventilated area only. If you use
them, don’t saturate the stained area.
If a ring forms after spot cleaning,
clean the entire area immediately or
it
will set.
Using Foam-Type Cleaner on Fabric
Vacuum and brush the area to remove
any loose dirt.
Always clean a whole trim panel or
section. Mask surrounding trim along
stitch or welt lines.
Mix Multi-Purpose Powdered Cleaner
following the directions on the
container label.
Use suds only and apply with a clean
sponge.
Don’t saturate the material.
Don’t rub
it roughly.
As soon as you’ve cleaned the section,
use a sponge to remove the suds.
Rinse the section
with a clean, wet
sponge.
Wipe off what’s left with a slightly
0 Then dry it immediately with a blow
damp
paper towel or cloth.
dryer or
a heat lamp.
I NOTICE:
I
Be careful with a hair dryer or heat
lamp. You could scorch the fabric.
Wipe with a clean cloth.
Using Solvent-Type Cleaner an Fabric
First, see if you have to use solvent-type
cleaner at all. Some spots and stains
will
clean off better with just water and mild
soap.
If you need to use a solvent:
0 Gently scrape excess soil from the
trim material with a clean, dull knife
or scraper. Use very
little cleaner, light
pressure and clean cloths (preferably
cheesecloth). Cleaning should start
at
the outside of the stain, “feathering”
toward the center. Keep changing
to a
clean section of the cloth.
0 When you clean a stain from fabric,
immediately dry the area
with an air
hose, hair dryer, or heat
lamp to help
prevent a cleaning ring.
(See the
previous
NOTICE.)
Fabric Protection
Your Geo has upholstery that has been
treated
with Scotchgard Fabric
Protector,
a 3M product. Scotchgard”
protects fabrics by repelling
oil and water,
which are the carriers of most
stains.
Even with this protection, you still need
to clean your upholstery often to keep
it
looking new.
Further information on cleaning
is
available by calling 1-800-433-3296
(in Minnesota, 1-800-642-6167).
Special Cleaning Problems
Greasy or
oily stains: Such as grease,
oil, butter, margarine, shoe polish, coffee
with cream, chewing gum, cosmetic
creams, vegetable oils, wax crayon, tar
and asphalt.
0 Carefully scrape off excess stain.
Follow the solvent-type instructions
described earlier.
. . .I90 ProCarManuals.com
0 Shoe polish, wax crayon, tar and
asphalt will stain if left on a vehicle
seat fabric. They should be removed
as soon as possible. Be eareful,
because the cleaner
will dissolve
them and may cause them to spread.
Non-greasy stains: Such as catsup,
coffee (black), egg, fruit, fruit juice, milk,
soft drinks, wine, vomit, urine and blood.
Carefully scrape off excess stain, then
sponge the soiled area
with cool water.
If a stain remains, follow the
foam-type instructions described
earlier.
If an odor lingers after cleaning
vomit or urine, treat the area with
a waterhaking soda solution:
1 teaspoon (5 ml) of baking soda to
1 cup (250 ml) of lukewarm water.
solvent-type cleaner.
If needed, clean lightly with
Combination stains: Such as candy,
ice cream, mayonnaise, chili sauce and
unknown stains.
Carefully scrape off excess stain, then
0 If a stain remains, clean it with
clean with cool water and allow to dry.
solvent-type cleaner.
Cleaning Vinyl
Use warm water and a clean cloth.
0 Rub with a clean, damp cloth to
remove dirt.
You may have to do it
more than once.
Things like tar, asphalt and shoe
polish will stain
if yoa don’t get them
off quickly. Use a clean cloth and
solvent-type
vinyl cleaner.
Cleaning Leather
Use a soft cloth with lukewarm water and
a mild soap or saddle soap.
For stubborn stains, use a mild
solution of
10% isopropyl alcohol
(rubbing alchohol) and 90% water.
solvent-based or abrasive cleaners,
furniture polish
or shoe polish on
leather.
immediately.
If dirt is allowed to work
into finish,
it can harm the leather.
Never use oils, varnishes,
Soiled leather should be cleaned
ueaning the Top of the Instrument
Panel
Use only mild soap and water to clean
the top surfaces of the instrument panel.
Sprays containing silicones or waxes
may cause annoying reflections in the
windshield and even make it difficult to
see through the windshield under certain
conditions.
Care of Safety Belts
Keep belts clean and dry.
Do not; bleach or dye safety belts.
If you do, it may severely weaken
them, In a crash they might not be
able to provide adequate protection.
Clean safety belts only with mild
soap
and lukewarm water.
Glass
Glass should be cleaned often. GM Glass
Cleaner
(GM Part No. 1050427) or a
liquid household glass cleaner will
remove normal tobacco smoke and dust
films.
191 ... ProCarManuals.com