2008 CHEVROLET CORVETTE coolant

(f)Lubricate all key lock cylinders and body door
hinges. Lubricate all hinges and latches, including those
for the hood, rear compartment, console door, and
any folding seat hardware. More frequent lubrication
may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better, and not stick or squeak.
(g)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.
(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.
Uses such as high performance operation.
(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 5-28
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, the filter
may require replacement more often.
(k)If you drive regularly under dusty conditions, inspect
the filter at each engine oil change.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(m)Drain, flush, and refill clutch hydraulic system at a
regular service interval (IorII) every two years.
This service can be complex; you should have your
dealer/retailer perform this service. See Hydraulic Clutch
on page 5-27.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
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 the vehicle
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 5-28.
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 Inspection and Ination Check
Inspect the vehicle’s tires for wear and make sure
they are inated to the correct pressures.
SeeInflation - Tire Pressure on page 5-66.
At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-32.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
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 OilThe engine requires a special
engine oil meeting GM Standard
GM4718M. Oils meeting this
standard can be identied as
synthetic, and should also be
identied with the American
Petroleum Institute (API) Certied
for Gasoline Engines starburst
symbol. However, not all synthetic
API oils with the starburst symbol
will meet this GM standard. Look for
and use only an oil that meets
GM Standard GM4718M. For the
proper viscosity, seeEngine Oil on
page 5-17.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-28.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Hydraulic
Clutch SystemHydraulic Clutch Fluid. Use only
GM Part No. U.S. 88958860,
in Canada 88901244,
Super DOT-4 brake uid.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Chassis
Lubrication
(Rear Toe-Link
Outer Ends with
ZO6 or Z51
Option)Chassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Manual
TransmissionManual Transmission Fluid
(GM Part No. U.S. 88861800,
in Canada 88861801).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
6-12

Checking Things Under the Hood......................5-12
Chemical Paint Spotting...................................5-96
Child Restraints
Child Restraint Systems...............................1-34
Infants and Young Children...........................1-30
Lower Anchors and Tethers for
Children..........................................1-36, 1-39
Older Children.............................................1-26
Securing a Child Restraint in the
Right Front Seat Position..........................1-39
Cigarette Lighter.............................................3-25
Cleaning
Aluminum or Chrome-Plated Wheels..............5-94
Cargo Cover and Convenience Net................5-90
Coated Moldings.........................................5-89
Convertible Top...........................................5-94
Exterior Lamps/Lenses.................................5-91
Fabric/Carpet..............................................5-88
Fiberglass Springs.......................................5-96
Finish Care.................................................5-92
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-90
Interior.......................................................5-87
Leather......................................................5-89
Removable Roof Panel.................................5-93
Tires..........................................................5-95
Underbody Maintenance...............................5-96Cleaning (cont.)
Washing Your Vehicle...................................5-91
Weatherstrips..............................................5-91
Windshield and Wiper Blades........................5-93
Climate Control System
Air Filter, Passenger Compartment.................3-32
Dual Automatic............................................3-26
Outlet Adjustment........................................3-32
Clock, Setting.................................................3-85
Clutch, Hydraulic.............................................5-27
Collision Damage Repair..................................7-12
Compass
...............................................2-37, 2-39
Competitive Driving, Racing or Other.................4-15
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-55
Convertible Top......................................2-62, 2-68
Coolant
Engine.......................................................5-28
Engine Temperature Gage............................3-44
Surge Tank Pressure Cap.............................5-31
Cooling System..............................................5-34
Courtesy Lamps.............................................3-19
Cruise Control................................................3-11
Cupholders....................................................2-53
Customer Assistance Information
Courtesy Transportation................................7-11
Customer Assistance for Text
Telephone (TTY) Users............................... 7-6
Customer Assistance Offices........................... 7-6
3

Engine
Air Cleaner/Filter.........................................5-25
Check and Service Engine Soon Light............3-45
Coolant......................................................5-28
Coolant Temperature Gage...........................3-44
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-35
Oil .............................................................5-17
Oil Life System...........................................5-23
Oil Pressure Gage.......................................3-48
Overheated Protection Operating Mode...........5-33
Overheating................................................5-31
Starting......................................................2-23
Entry/Exit Lighting...........................................3-19
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-26
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-19
F
Filter
Engine Air Cleaner......................................5-25
Finish Damage...............................................5-95
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass.................................................3-10Flat Tire........................................................5-86
Floor Mats.....................................................2-54
Fluid.............................................................5-27
Automatic Transmission................................5-27
Power Steering...........................................5-39
Windshield Washer......................................5-41
Fog Lamp
Fog ...........................................................3-17
Fog Lamp Light..............................................3-49
Front Air Dam................................................2-21
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-11
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-8
Gage .........................................................3-50
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Running Out of...........................................2-36
Fuses
Engine Compartment Fuse Block.................5-104
Fuses and Circuit Breakers.........................5-100
Instrument Panel Fuse Block.......................5-100
Windshield Wiper.........................................5-99
5

G
Gage
Engine Coolant Temperature.........................3-44
Engine Oil Pressure.....................................3-48
Fuel..........................................................3-50
Speedometer..............................................3-36
Tachometer.................................................3-36
Voltmeter Gage...........................................3-40
Garage Door Opener.......................................2-46
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-53
GM Mobility Reimbursement Program.................. 7-7
H
Hatch/Trunk...................................................2-13
Hazard Warning Flashers................................... 3-6
Headlamp
Aiming .......................................................5-51
Headlamp Wiring............................................5-99
Headlamps
Bulb Replacement.......................................5-52
Daytime Running Lamps...............................3-16
Exterior Lamps............................................3-15
Flash-to-Pass..............................................3-10Headlamps (cont.)
Halogen Bulbs............................................5-52
Headlamps, Front Turn Signal, and
Parking Lamps.........................................5-53
High Intensity Discharge (HID) Lighting...........5-52
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Wiper Activated...........................................3-16
Head-Up Display (HUD)...................................3-20
Heated Seats................................................... 1-4
Heater...........................................................3-26
Highbeam On Light.........................................3-50
High-Speed Operation, Tires.............................5-68
Highway Hypnosis...........................................4-18
Hill and Mountain Roads..................................4-18
Hood
Checking Things Under................................5-12
Release.....................................................5-13
Horn ............................................................... 3-7
How to Wear Safety Belts Properly...................1-14
Hydraulic Clutch.............................................5-27
I
Ignition Positions.............................................2-22
Immobilizer....................................................2-20
Immobilizer Operation......................................2-20
Infants and Young Children, Restraints...............1-30
6