What Kind of Oil to Use:
Look for three things:
SG
SG must be on the oil container,
either by itself or combined with other
quality designations, such
as SGKC,
SG/CD, SF, SG, CC, etc. These
letters show American Petroleum
Institute (API) levels
of quality.
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
1-1
@ 1 5W.30
c~coNs.8
LOOK
FOR THIS
LABEL
4$
--
SAE 1OW-30
SAE 5W-30 PREFERRED
COLD
WEATHER
you use oils that don’t have the IF NEITHER SAE 5W-30 NOR SAE 1OW-30
GRADE OILS ARE AVAILABLE, SAE 30 GRADE
MAY BE USED AT TEMPERATURES ABOVE BG designation, you can cause
engine damage not covered
Sy 40 DEGREES F (4 DEOREES C).
your warranty. DO NOT USE SAE 10W-40, SAE 2OW-50 OR 1 ANY OTHER GRADE OIL NOT RECOMMENDED.
SAE 5W-30
As shown in the viscosity 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
1OW-40 or SAE 2OW-50.
Energy Conserving I1
Oils with these words on the container
will help you save fuel.
231
ProCarManuals.com
Service & Appearance Care
c
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.
... 234
Air Filter Replacement
To check or replace the filter, remove
the screws and lift up the cover.
Automatic Tmnsmissian Fluid
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 a 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.
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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 Transmiisioon 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 find out
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 a Geo dealership Service
Department.
If you do
it yourself, be sure to follow
all the instructions here, or you could
get
a false reading.
90 much or too little fluid can
...anage your transmission.
Too
much can mean that some of the
fluid could come
out and fall on I
hot engine parts, starting a fire.
I sure to get an accurate reading if
you check your transmission fluid.
I
Check the fluid level only when your
engine is off, the vehicle is parked on a
level place and the transmission
is cool
enough
for you to rest your fingers on
the transmission case.
237 8
ProCarManuals.com
Service & Appearance Care
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
Give boiling protection up to 258°F
Protect against rust and corrosion.
Help keep the proper engine
Let the warning lights work as they
-34°F (-37°C).
(125°C).
temperature. should.
What to Use:
Use a mixture of one-half clean water
(preferably distilled) and one-half
antifreeze or approved recycled coolant
that meets “GM Specification 6038M,”
which won’t damage aluminum parts.
Also use GM Engine Coolant
Supplement (sealer) with a complete
coolant change. If you use these, you
don’t need to add anything else.
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r
Adding only plain water to
b your cooling system can be
dmgemus. Plaia 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 a proper
antifreeve or approved recycled
coolant.
I
Some conditions, such as air trapped in
the cooling system, can affect 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
more than
four time
a year, have your dealer check
your cooling system.
If
you use the proper coolant, you
don’t have to add extra inhibitors
or additivies which claim to
II
241
ProCarManuals.com
Service & Appearance Care
CA U TlON
R
d
fl
I1
A If you have too much brake
L,,E;ine. The fluid will burn
if the
engine is hot enough.
You or
others could be burned, and your
vehicle could be damaged. Add
brake fluid only when work
is
done on the brake hydraulic
system.
L fluid, it can spill on the
Lefer to
the Maintenance Schedule to
etermine when to check your brake
hid. See ‘‘Periodic Maintenance
Ispections” in the Index.
’ To Check Brake Fluid:
1
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 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
II@ (GM Part No.
I DOT-5 silicone brake fluid can
damage your llehicle. Don’t use
it.
I D0n.t so1 : put In tf
wrong mnd 01 kd. For
example, just a few drops
mineral-based oil,
such as
engine oil,
in your brake systt
can damage brake system part
so badly that they’ll have to b
replaced.
Brake fluid
I Ige paint,
be careful not to spill
fluid
on your vehicle
1052535). Use new brake fluid from a
sealed container only.
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Service & Appearance Care
Capacities (Approximate)
The following approximate capacities are given in U.S. and metric conversions.
Automatic Transmission Air
Conditioning?.
................ .See the refrigerant information label under hood.
.............................................
................................................... Drain and Refill .3.0 qt. (2.8 L)**
Overhaul .4.9 qt. (4.6 L)
Cooling System
Automatic Transmission. ...................................... S.5 qt. (5.2 L)
I Manual Transmission. ........................................ S.6 qt. (5.3 L)
FuelT ank....................................................llgal.(42.0L) .
Crankcase
..........................................
........................................
With Filter Change. .4.5 qt. (4.2 L)*
Without Filter Change .4.2 qt. (4.0 L)*
Front Differential ............................................... 1 1 qt. (1 .O L)
Manual Transmission. .1.6 qt. (1.5 L)**
Rear Differential. .2.3 qt. (2.2 L)
Transfer Case .................................................. 1 .8 qt. (1.7 L)
..........................................
..............................................
Wheel Nuts
Wheel Nut Torque .60 lb. ft. (80 N-m)
? Not all air conditioning refrigerants are the same. If the air conditioning system in
your vehicle needs refrigerant, be sure
the proper refrigerant is used. If you’re not
sure, ask your Geo dealer.
after filling.
See “Engine Oil” in the Index.
Transmission Fluid” in the Index.
.........................................
*.When changing the oil filter, additional oil may be needed. Recheck the oil level
** Recheck fluid level after filling. See “Automatic Transmission Fluid” or “Manual
9 278
ProCarManuals.com
IMPORTANT:
KEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE AS
RECOMMENDED
I
This part covers the maintenance
required for your Geo
. Your vehicle
needs these services to retain its
safety. dependability and emission
control performance
.
Part 7
Maintenance Schedule
Section
Introduction: A Word about Maintenance ........................... 282
Your Vehicle and the Environment
............................ 282
How This Part Is Organized
................................. 283
Using Your Maintenance Schedules
........................... 285
Selecting the Right Schedule
................................. 285
Schedule1
................................................ 286
Schedule11
............................................... 288
Explanation
of Scheduled Maintenance Services ................. 290
Other Emission Related Maintenance Service
................... 295
Other Non-Emission Related Maintenance Service
............... 296
At Each Fuel Fill 298
At Least Twice a Year ...................................... 299
At Least Once a Year ....................................... 300
A . Scheduled Maintenance Services ............................... 285
B . OwnerChecksandServices ................................... 298
AtLeastOnceaMonth
..................................... 299
C . Periodic Maintenance Inspections .............................. 303
D . Recommended Fluids and Lubricants ........................... 305
E . MaintenanceRecord ......................................... 308
..........................................
u1 Protection I . Plan
281 9 9
L
Have you purchased the GM Protection Plan ? 7he Plan
supplements your new car warranties
.
See your GM dealer for details .
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