2008 CHEVROLET IMPALA engine 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 5-26 for what
to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and filler neck. Pressure test the cooling
system and pressure cap.
(j)Check throttle system for interference or binding and
for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator or
cruise control cables.(k)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the fluid level checked. Add fluid if needed.
(m)If you drive regularly under dusty conditions, inspect
the filter at each engine oil change.
(n)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.
6-8

At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
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 5-17.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-26.
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 5-61. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-78.
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 5-68.
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 5-17.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-26.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor,
and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293,
in Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and
Door HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
6-12

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer/retailer.
Normal Maintenance Replacement Parts
Part GM Part NumberAC Delco
Part Number
Engine Air Cleaner/Filter 10350737 A2962C
Engine Oil Filter
3.5L V6, 3.5L V6 Flexible Fuel and 3.9L V6 Flexible Fuel
Engines89017342 PF61
5.3L V8 Engine 89017524 PF48
Passenger Compartment Air Filter 15284938 CF132
Spark Plugs
3.5L V6, 3.5LV6 Flexible Fuel and 3.9L V6 Flexible Fuel
Engines12591131 41-100
5.3L V8 Engine 12571164 41-985
Windshield Wiper Blades
Driver’s – 22 inches (55.0 cm) 15941731 —
Passenger’s-Driver’s – 22 inches (55.0 cm) 15941732 —
6-13

Engine
Air Cleaner/Filter.........................................5-22
Check and Service Engine Soon Light............3-39
Coolant......................................................5-26
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-38
Coolant Temperature Warning Light................3-37
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-14
Exhaust.....................................................2-34
Oil .............................................................5-17
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-31
Overheating................................................5-29
Running While Parked..................................2-34
Starting......................................................2-23
Entry Lighting.................................................3-17
Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-22
Finish Damage...............................................5-96
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-77
Flat Tire, Changing.........................................5-78
Flat Tire, Storing.............................................5-87
Fluid
Automatic Transmission................................5-24
Power Steering...........................................5-37
Windshield Washer......................................5-38
Fog Lamp
Fog ...........................................................3-16
Fog Lamp Light..............................................3-42
Folding Rear Seat............................................ 1-8
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
E85 (85% Ethanol)........................................ 5-8
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage.........................................................3-43
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Fuses
Fuses and Circuit Breakers...........................5-99
Instrument Panel Fuse Block.........................5-99
Underhood Fuse Block...............................5-100
Windshield Wiper.........................................5-99
5

J
Jump Starting.................................................5-43
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-55
Lamps
Courtesy....................................................3-17
Dome........................................................3-17
Mirror Reading............................................3-19
Reading.....................................................3-19
Lap Belt........................................................1-29
Lap-Shoulder Belt...........................................1-24
LATCH System
Child Restraints...........................................1-41
License Plate Lamps.......................................5-51
Light
Airbag Readiness........................................3-31
Antilock Brake System Warning.....................3-35
Brake System Warning.................................3-34Light (cont.)
Charging System.........................................3-34
Cruise Control.............................................3-43
Electronic StabiliTrak
®Control Indicator...........3-36
Engine Coolant Temperature Warning.............3-37
Fog Lamp..................................................3-42
Highbeam On.............................................3-43
Malfunction Indicator....................................3-39
Oil Pressure...............................................3-42
Passenger Airbag Status Indicator..................3-32
Safety Belt Reminders..................................3-30
Security.....................................................3-42
TCS Warning Light......................................3-36
Tire Pressure..............................................3-38
Traction Control System (TCS) Warning..........3-36
Lighting
Delayed Entry.............................................3-18
Delayed Exit...............................................3-18
Entry.........................................................3-17
Parade Dimming..........................................3-18
Lights
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-9
High/Low Beam Changer................................ 3-8
Loading Your Vehicle.......................................4-21
Lockout Protection..........................................2-13
7

O
Odometer......................................................3-29
Off-Road Recovery..........................................4-11
Oil
Engine.......................................................5-17
Pressure Light.............................................3-42
Oil, Engine Oil Life System..............................5-20
Older Children, Restraints................................1-31
Online Owner Center........................................ 7-4
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-38
Operation, Universal Home Remote System........2-42
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-25
Outlets
Accessory Power.........................................3-20
Outside
Convex Mirror.............................................2-37
Power Heated Mirrors..................................2-37
Power Mirrors.............................................2-37
Overheated Engine Protection Operating Mode.....5-31
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-96
Parade Dimming.............................................3-18
Park Brake....................................................2-30
Park (P)
Shifting Into................................................2-30
Shifting Out of............................................2-32
Parking
Over Things That Burn.................................2-33
Passenger Airbag Status Indicator.....................3-32
Passenger Compartment Air Filter.....................3-26
Passenger Sensing System..............................1-62
Passing.........................................................4-11
PASS-Key
®III+..............................................2-19
PASS-Key®III+ Operation................................2-20
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................2-11
Electrical System.........................................5-99
Retained Accessory (RAP)............................2-23
Seat............................................................ 1-3
Steering Fluid.............................................5-37
Windows....................................................2-16
Pressure Cap.................................................5-29
9