oil additives CHEVROLET TRAIL BLAZER 2008 1.G Owners Manual

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-17
Engine Oil Life System..................................5-22
Engine Air Cleaner/Filter................................5-24
Automatic Transmission Fluid.........................5-25
Engine Coolant.............................................5-28
Radiator Pressure Cap..................................5-30
Engine Overheating.......................................5-30
Cooling System............................................5-32Engine Fan Noise.........................................5-37
Power Steering Fluid.....................................5-38
Windshield Washer Fluid................................5-39
Brakes........................................................5-40
Battery........................................................5-43
Jump Starting...............................................5-44
All-Wheel Drive..............................................5-49
Rear Axle.......................................................5-49
Four-Wheel Drive............................................5-50
Front Axle......................................................5-51
Headlamp Aiming...........................................5-52
Bulb Replacement..........................................5-52
Halogen Bulbs..............................................5-52
Taillamps and Turn Signal Lamps...................5-53
License Plate Lamp......................................5-54
Replacement Bulbs.......................................5-54
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-58
Winter Tires.................................................5-59
Tire Sidewall Labeling...................................5-60
Tire Terminology and Denitions.....................5-62
Ination - Tire Pressure.................................5-65
High-Speed Operation...................................5-66
Tire Pressure Monitor System.........................5-67
Section 5 Service and Appearance Care
5-1

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.
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 on. See the 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 might 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/retailer has
trained people who will perform this work using genuine
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 the 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.
5-22

What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL®coolant. 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/retailer 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 6-12for more information.
Checking Coolant
The engine coolant
recovery tank is in the
engine compartment on the
passenger’s side of the
vehicle. The cap has this
symbol on it. SeeEngine
Compartment Overview on
page 5-12for more
information on location.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at FULL
COLD, or a little higher.
5-29

Engine (cont.)
Coolant......................................................5-28
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-40
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-36
Fan Noise..................................................5-37
Oil .............................................................5-17
Oil Life System...........................................5-22
Overheating................................................5-30
Reduced Power Light...................................3-46
Starting......................................................2-21
Entry Lighting.................................................3-18
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-29
F
Filter
Engine Air Cleaner......................................5-24
Finish Damage.............................................5-107
Fixed Mast Antenna.......................................3-106
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-84Flat Tire, Changing.........................................5-85
Flat Tire, Storing.............................................5-97
Fluid
Automatic Transmission................................5-25
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp
Fog ...........................................................3-16
Four-Wheel Drive....................................2-28, 5-50
Front Axle......................................................5-51
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-48
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-48
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-48
Running Out of...........................................2-36
Fuses
Engine Compartment Fuse Block.................5-111
Fuses and Circuit Breakers.........................5-110
Rear Underseat Fuse Block.........................5-118
Windshield Wiper.......................................5-110
5