Oil CHEVROLET COBALT 2007 1.G Owner's Manual

When to Add Engine Oil
If the oil is below the MIN (minimum) mark,
you need to add at least one quart/liter of oil.
But you must use the right kind. This section
explains what kind of oil to use. For engine
oil crankcase capacity, seeCapacities and
Specications on page 390.
Notice:Do not add too much oil. If the
engine has so much oil that the oil level gets
above the upper mark that shows the proper
operating range, the engine could be damaged.SeeEngine Compartment Overview on page 290
for the location of the engine oil ll cap.
Be sure to add enough oil to put the level
somewhere in the proper operating range.
Push the dipstick all the way back in when
you are through.
2.2L L4 Engine and
2.4L L4 Engine2.0L L4 Supercharged
Engine
294

What Kind of Engine Oil to Use
For Vehicles With the 2.2L or
2.4L L4 Engine
Look for three things:
GM6094M
Your vehicle’s engine requires oil meeting GM
Standard GM6094M. Look for and use only
an oil that meets GM Standard GM6094M.
SAE 5W-30As shown in the viscosity chart, SAE 5W-30 is
best for your vehicle.
These numbers on an oil container show its
viscosity, or thickness. Do not use other
viscosity oils such as SAE 20W-50.
Oils meeting these
requirements should
have the starburst
symbol on the
container. This
symbol indicates
that the oil has
been certied by the
American Petroleum
Institute (API).
Look for this information on the oil container, and
use only those oils that are identied as meeting
GM Standard GM6094M and have the starburst
symbol on the front of the oil container.
Notice:Use only engine oil identied as
meeting GM Standard GM6094M and showing
the American Petroleum Institute Certied For
Gasoline Engines starburst symbol. Failure to
use the recommended oil can result in engine
damage not covered by your warranty.
295

GM Goodwrench®oil meets all the requirements
for your vehicle.
If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both provide
easier cold starting and better protection for
the engine at extremely low temperatures.For Vehicles with the 2.0L L4
Supercharged Engine Only
Look for three things:
GM4718M
Your vehicle’s engine requires a special oil
meeting GM Standard GM4718M, such as
Mobil 1
®or equivalent. Oils meeting this
standard may be identied as synthetic.
However, not all synthetic oils will meet this
GM standard. Look for and use only an oil that
meets GM Standard GM4718M.
296

Notice:If you use oils that do not have the
GM4718M Standard designation, you can cause
engine damage not covered by your warranty.
SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is
best for your vehicle.
These numbers on an oil container show its
viscosity, or thickness. Do not use other
viscosity oils such as SAE 20W-50.
Oils meeting these
requirements should
have the starburst
symbol on the
container. This
symbol indicates
that the oil has been
certied by the
American Petroleum
Institute (API).Look for this on the oil container, and use only
those oils that are identied as meeting GM
Standard GM4718M and have the starburst
symbol on the front of the oil container.
Your vehicle’s engine is lled at the factory with
a synthetic oil which meets all requirements
for your vehicle.
Substitute Engine Oil: When adding oil to maintain
engine oil level, oil meeting GM Standard
GM4718M may not be available. You can add
substitute oil designated SAE 5W-30 with the
starburst symbol at all temperatures. Substitute oil
not meeting GM Standard GM4718M should not be
used for an oil change.
Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet GM
standards are all you need for good performance
and engine protection.
297

Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you
know when to change the engine oil and lter.
This is based on engine revolutions and engine
temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change
will be indicated can vary considerably. For the
oil life system to work properly, you must reset
the system every time the oil is changed.
When the system has calculated that oil life has
been diminished, it will indicate that an oil change
is necessary. A CHANGE OIL SOON message in
the Driver Information Center (DIC) will come on.
SeeDIC Warnings and Messages on page 184.
Change your oil as soon as possible within the next
600 miles (1 000 km). It is possible that, if you are
driving under the best conditions, the oil life system
may not indicate that an oil change is necessary for
over a year. However, your engine oil and ltermust be changed at least once a year and at this
time the system must be reset. Your dealer has
GM-trained service people who will perform this
work using genuine GM parts and reset the system.
It is also important to check your oil regularly and
keep it at the proper level.
If the system is ever reset accidentally, you
must change your oil at 3,000 miles (5 000 km)
since your last oil change. Remember to reset the
oil life system whenever the oil is changed.
How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to
change your engine oil and lter based on vehicle
use. Anytime your oil is changed, reset the system
so it can calculate when the next oil change is
required. If a situation occurs where you change
your oil prior to a CHANGE OIL SOON message
being turned on, reset the system.
298

After changing the engine oil, the system must be
reset as follows:
1. Turn the ignition to RUN, with the engine off.
2. Press the information and reset buttons
on the DIC at the same time to enter the
personalization menu. SeeDIC Vehicle
Personalization on page 186.
3. Press the information button to scroll through
the available personalization menu modes
until the DIC display shows OIL-LIFE RESET.
4. Press and hold the reset button until the DIC
display shows ACKNOWLEDGED. This will
tell you the system has been reset.
5. Turn the key to LOCK.
If the CHANGE OIL SOON message comes back
on when you start your vehicle, the engine oil
life system has not reset. Repeat the reset
procedure.What to Do with Used Oil
Used engine oil contains certain elements that may
be unhealthy for your skin and could even cause
cancer. Do not 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
dispose of 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 threat to the environment. If you
change your own oil, be sure to drain all the oil from
the lter before disposal. Never 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.
299

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 290
for the location of the engine air cleaner/lter.
When to Inspect the Engine
Air Cleaner/Filter
Inspect the air cleaner/lter at the MaintenanceII
intervals and replace it at the rst oil change
after each 50,000 mile (85 000 km) interval.
SeeScheduled Maintenance on page 396for
more information. If you are driving in dusty/dirty
conditions, inspect the lter at each engine oil
change.
How to Inspect the Engine
Air Cleaner/Filter
2.2L and 2.4L L4 Engines
To inspect the air cleaner/lter remove the lter
from the vehicle and lightly shake the lter to
release loose dust and dirt. If the lter remains
caked with dirt, a new lter is required. Never use
compressed air to clean the lter.To inspect or replace the lter, remove the screws
that hold the cover on and lift off the cover.
Be sure to reinstall the cover tightly.
2.0L L4 Supercharged Engine
There is a special procedure for inspecting and
replacing the lter. Because this procedure is
difficult, you should have it done at your dealer
service department. Contact your dealer for
additional information, or the procedure can be
found in the service manual. To purchase a service
manual, seeService Publications Ordering
Information on page 430.
300

Hydraulic Clutch
The hydraulic clutch linkage in your vehicle is
self-adjusting. This system does not have its own
reservoir. It receives uid from the brake master
cylinder reservoir.
SeeBrakes on page 318for more information.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®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, seeEngine
Overheating on page 309.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down
to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would
not be covered by your warranty. Always
use DEX-COOL
®(silicate-free) coolant in
your vehicle.
302

What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®coolant which will
not damage aluminum parts. If you use this coolant
mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as 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 would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.Notice:If you use an improper coolant
mixture, your engine could overheat and be
badly damaged. The repair cost would not be
covered by your warranty. Too much water
in the mixture 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 extra inhibitors and/or
additives in your vehicle’s cooling system,
you could damage your vehicle. Use only the
proper mixture of the engine coolant listed
in this manual for the cooling system.
SeeRecommended Fluids and Lubricants
on page 406for more information.
303

Adding Coolant to the Intercooler System
Fill Neck
If coolant is not visible in the ll neck, add a 50/50
mixture of clean, drinkable water and DEX-COOL®
coolant at the ll neck, but be sure that the
cooling system, including the ll neck pressure
cap, is cool before you do so.
{CAUTION:
Steam and scalding liquids from a hot
cooling system can blow out and burn
you badly. They are under pressure, and if
you turn the intercooler system pressure
cap — even a little — they can come out
at high speed. Never turn the cap when
the intercooler system, including the
intercooler system pressure cap, is hot.
Wait for the intercooler system and
intercooler system pressure cap to cool
if you ever have to turn the pressure cap.
{CAUTION:
Adding only plain water to your
intercooler system can be dangerous.
Plain water, or some other liquid such as
alcohol, can boil before the proper coolant
mixture will. With plain water or the wrong
mixture, your engine could get too hot.
Your engine could catch re and you or
others could be burned. Use a 50/50
mixture of clean, drinkable water and
DEX-COOL
®coolant.
Notice:In cold weather, water can freeze
and crack the engine, intercooler, and other
parts. Use the recommended coolant and
the proper coolant mixture.
307