2008 CHEVROLET COLORADO oil

(h)Change automatic transmission fluid and filter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-27
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and filler neck. Pressure test
the cooling system and pressure cap.
(j)If you drive regularly under dusty conditions, inspect
the filter at each engine oil change.
(k)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your dealer/retailer can assist you with these
checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
6-8

Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by your warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-27.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Inspect your vehicle’s tires and make sure they are
inated to the correct pressures. Do not forget to check
the spare tire. SeeInflation - Tire Pressure on
page 5-66. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-84.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-74.
6-9

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number, or specication can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets
GM Standard GM6094M and
displays the American Petroleum
Institute Certied for Gasoline
Engines starburst symbol. To
determine the proper viscosity for
your vehicle’s engine, seeEngine
Oil on page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-27.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Manual
TransmissionManual Transmission Fluid
(GM Part No. U.S. 89021806,
in Canada 89021807).
Hydraulic
Clutch SystemHydraulic Clutch Fluid
(GM Part No. U.S. 12345347,
in Canada 10953517) or equivalent
DOT-3 brake uid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front and
Rear AxleSAE 75W-90 Synthetic
Axle Lubricant (GM Part
No. U.S. 89021677,
in Canada 89021678) meeting
GM Specication 9986115.
6-12

Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer/retailer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 15942429 —
Engine Oil Filter
2.9L L4 Engine 88984215 PF46
3.7L L5 Engine 89017342 PF61
5.3L V8 Engine 89017524 PF48
Spark Plugs
2.9L L4 and 3.7L L5 Engines 12598004 41-103
5.3L V8 Engine 12571164 41-985
Wiper Blades
Driver Side — 22 inches (55 cm) 10389562 —
Passenger Side — 19 inches (48 cm) 10389563 —
6-14

Engine (cont.)
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-37
Fan Noise..................................................5-37
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheating................................................5-30
Starting......................................................2-21
Event Data Recorders.....................................7-18
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-32
Exterior Cargo Lamps......................................3-16
Exterior Lamps...............................................3-13
F
Filter
Engine Air Cleaner......................................5-20
Finish Damage.............................................5-112
Fixed Mast Antenna........................................3-69
Flashers, Hazard Warning.................................. 3-5
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-83
Flat Tire, Changing.........................................5-84Flat Tire, Storing.............................................5-99
Fluid.............................................................5-24
Automatic Transmission................................5-21
Power Steering...........................................5-37
Windshield Washer......................................5-38
Fog Lamp
Fog ...........................................................3-16
Four-Wheel Drive....................................2-28, 5-49
Front Axle......................................................5-50
Front Turn Signal, Parking and Daytime
Running Lamps...........................................5-53
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-36
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Running Out of...........................................2-38
Fuses
Engine Compartment Fuse Block.................5-115
Fuses and Circuit Breakers.........................5-115
Windshield Wiper.......................................5-115
5

J
Jump Starting.................................................5-44
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-60
Lamps
Dome ........................................................3-17
Dome Lamp Override...................................3-17
Exterior Cargo.............................................3-16
Lap Belt........................................................1-31
Lap-Shoulder Belt...........................................1-25
LATCH System
Child Restraints...........................................1-43
Latches, Seatback............................................ 1-8
License Plate Lamps.......................................5-56
Light
Airbag Readiness........................................3-26
Anti-lock Brake System (ABS) Warning...........3-31
Brake System Warning.................................3-30Light (cont.)
Charging System.........................................3-29
Cruise Control.............................................3-36
Highbeam On.............................................3-36
Malfunction Indicator....................................3-33
Oil Pressure...............................................3-35
Passenger Airbag Status Indicator..................3-27
Safety Belt Reminders..................................3-25
Security.....................................................3-36
TCS Warning Light......................................3-31
Tire Pressure..............................................3-32
Traction Control System (TCS) Warning..........3-31
Up-Shift.....................................................3-29
Lighting
Exit...........................................................3-17
Lights
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
Interior Lamps.............................................3-16
On Reminder..............................................3-14
Limited-Slip Rear Axle....................................... 4-6
Loading Your Vehicle.......................................4-33
Lockout Protection............................................ 2-9
Locks
Door ........................................................... 2-7
Lockout Protection......................................... 2-9
7

O
Odometer......................................................3-24
Odometer, Trip...............................................3-24
Off-Road Driving.............................................4-11
Off-Road Recovery........................................... 4-9
Oil
Engine.......................................................5-15
Pressure Light.............................................3-35
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-33
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-19
OnStar
®System, see OnStar®Manual...............2-47
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-21
Outlets
Accessory Power.........................................3-18
Outside
Convex Mirror.............................................2-46
Manual Mirrors............................................2-45
Power Mirrors.............................................2-46
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-112
Park
Shifting Into................................................2-34
Shifting Out of............................................2-36
Park Brake....................................................2-32
Parking
Over Things That Burn.................................2-37
Parking Your Vehicle.......................................2-36
Passenger Airbag Status Indicator.....................3-27
Passenger Sensing System..............................1-69
Passing........................................................... 4-9
PASS-KEY
®III+ Electronic Immobilizer...............2-17
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-17
Passlock
®......................................................2-16
Perchlorate Materials Requirements, California...... 5-4
Pickup Conversion to Chassis Cab....................4-40
Power
Door Locks.................................................. 2-8
Lumbar Controls........................................... 1-4
Retained Accessory (RAP)............................2-21
Seat............................................................ 1-3
9