CHEVROLET TRAIL BLAZER 2007 1.G Owners Manual

A. Engine Coolant Recovery Tank. SeeCooling
System on page 420.
B. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 410.
C. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 427.
D. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 402.
E. Automatic Transmission Fluid Dipstick.
See “Checking the Fluid Level” under
Automatic Transmission Fluid on page 411.
F. Engine Oil Fill Cap (Under Engine Cover).
See “When to Add Engine Oil” underEngine
Oil on page 402.G. Radiator Pressure Cap. SeeRadiator Pressure
Cap on page 418.
H. Remote Negative (−) Terminal (Marked GND).
SeeJump Starting on page 432.
I. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 426.
J. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 428.
K. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 503.
L. Battery. SeeBattery on page 431.
401

Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be
on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 396
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several
minutes to drain back into the oil pan. If you
do not do this, the oil dipstick might not
show the actual level.
2. Pull out the dipstick and clean it with a paper
towel or cloth, then push it back in all the
way. Remove it again, keeping the tip down,
and check the level.
When to Add Engine Oil
If the oil is below the L mark for the L6 engine or
the cross-hatched area at the tip of the dipstick
for the V8 engine, 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.
L6 Engine
V8 Engine
402

For engine oil crankcase capacity, seeCapacities
and Specications on page 513.
Notice:Do not add too much oil. If the engine
has so much oil that the oil level gets above the
cross-hatched area (F) that shows the proper
operating range for the L6 engine or above
the cross-hatched area for the V8 engine,
the engine could be damaged.
SeeEngine Compartment Overview on page 396
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.
SS Model Only
Remove the engine cover for access to the
engine oil ll cap as follows:
1. Undo the screw in the middle of the cover.
2. Pop the cover off of the stud on the
driver side.
3. Angle the cover up and pull it off of the
bracket.
4. Reverse above steps to reinstall the cover.
Except 6.0L V8
(VIN Code H) Engine6.0L V8 (VIN Code H)
Engine
403

What Kind of Engine Oil to Use
Except Vehicles with 6.0L V8 (VIN Code H)
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-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.
404

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.
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.
405

For 6.0L V8 (VIN Code H) Engine
Vehicles OnlyLook for three things:
GM4718M
Your vehicle’s engine requires a special oil
meeting GM Standard GM4718M. 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.
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.
406

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 Mobil 1®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.
407

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 engine oil
light will come on, and, if your vehicle has a
Driver Information Center (DIC), a CHANGE
ENGINE OIL message will come. SeeChange
Engine Oil Light on page 216andDIC
Warnings and Messages on page 224.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, the engine oil
and lter must be changed at least once a year
and at this time the system must be reset.
Your dealer has GM-trained people who will
perform this work using genuine GM parts and
reset the system. It is also important to check the
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 the last oil change. Remember to reset the
oil life system whenever the oil is changed.
408

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 engine oil light
or CHANGE ENGINE OIL message being
turned on, reset the system.
To reset the Engine Oil Life System, do the
following:
1. Turn the ignition key to RUN with the
engine off.
2. Fully press and release the accelerator pedal
slowly three times within ve seconds.
The change engine oil light will ash while
the system is resetting.
3. When the light stops ashing, turn the key
to LOCK.
If the light/message comes back on when you
start the vehicle, the engine oil life system has not
reset. Repeat the 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.
409

Engine Air Cleaner/Filter
SeeEngine
Compartment Overview
on page 396for 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 at the rst oil change
after each 50,000 mile (83 000 km) interval.
SeeScheduled Maintenance on page 519
for 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
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.
To inspect or replace the engine air cleaner/lter,
do the following:
1. Remove the screws on the engine air
cleaner/lter and lift off the cover.
2. Remove the air cleaner/lter from the housing.
Care should be taken to dislodge as little dirt
as possible.
3. Inspect or replace the engine air cleaner/lter.
4. Reinstall the cover and tighten the screws.
4.2L L6 Engine shown,
5.3L and 6.0L V8
Engines similar
410