2015 CHEVROLET CORVETTE engine coolant

Black plate (7,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
Driving and Operating 9-7
Front (per corner)
.Caster: +7.0 degrees
.Camber: -2.0 degrees
.Toe: 0.05 degrees toe in
Rear (per corner)
.Caster: 0 degrees
.Camber: -2.0 degrees
.Toe: 0.05 degrees toe in
Thrust Angle: 0 degrees
Rear Axle Fluid
{Caution
During a first time track or racing
event, high rear axle
temperatures can occur. Damage
could be caused to the rear axle
and would not be covered by the
vehicle warranty. Do not drive as
long or as fast the first time the
vehicle is driven on the track or
raced. The rear axle fluid temperatures
may be higher than when driving in
severe conditions. Drain and refill
with new fluid after the first racing or
competitive driving event, and then
after every 24 hours of racing or
competitive driving. See
Recommended Fluids and
Lubricants on page 11-12.
General Information
If reduced performance is
experienced during track events or
competitive driving, turning off the
A/C will help to improve engine
performance.
Maintain a mixture of 40%
DEX-COOL coolant and 60% clean,
drinkable water to optimize engine
performance.
The front license plate bracket or
aero panel should be removed for
track events and competitive driving
to improve engine performance.
Rotor Cooling Ring
The following installation procedure
is for Z51, and only if the vehicle is
equipped with front dual cast brake
rotors along with the supplied brake
cooling ring kit. See your dealer for
information.
If the vehicle is a Z51 and equipped
with a one piece brake rotor a
cooling ring is not required.
{Caution
Do not leave rotor cooling rings
installed after a track event, as
this can cause corrosion with
long-term use. Rotor cooling rings
are for track use only. Track
driving without the rotor cooling
rings may result in brake
pedal fade.

Black plate (34,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
9-34 Driving and Operating
If the vehicle is not upshifted as the
engine speed approaches fuel shut
off rpm, the engine speed will be
limited to protect the engine. See
Tachometer on page 5-12.
Active Rev Match
Vehicles equipped with a manual
transmission have Active Rev Match
(ARM). ARM aids in smoother
shifting by matching the engine
speed to the next selected gear. By
monitoring shift lever and clutch
operation, ARM adjusts engine
speed to match a calibrated value
based on gear selection. On
upshifts and downshifts, engine
speed will be increased and
decreased to match vehicle road
speed and transmission gear
position. ARM is maintained for a
few seconds between shifts, then
deactivates if the shift is not
completed.
The system is activated and
deactivated by pressing either of the
paddles marked REV MATCH on
the steering wheel. The system
must be activated with each new
ignition cycle.
A gear indicator in the instrument
cluster displays the current gear
selected:
.When ARM is activated, the
gear number is amber.
.When ARM is deactivated, the
gear number is white.
.A white dash indicates that
service is required. ARM will be
disabled, and the malfunction
indicator lamp will be on. See
Malfunction Indicator Lamp on
page 5-18. The clutch and
manual transmission will
continue to operate normally.
ARM will also:
.Be active above 32 km/h
(20 mph).
.Match engine speed up to
5400 rpm.
.Not operate when the
accelerator pedal is applied.
.Be disabled when the coolant
temperature is below 0°C (32°F).

Black plate (1,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-2
Accessories and Modifications . . . . . . . . . . . . . . . 10-2
Lifting the Vehicle . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . . . . . . . 10-5
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil . . . . . . . . . . . . . . . . . . 10-12
Engine Oil Life System . . . . . 10-18
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-19
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-19
Hydraulic Clutch . . . . . . . . . . . . 10-19
Engine Air Cleaner/Filter . . . . 10-20
Cooling System (Engine) . . . 10-22 Cooling System (Aero
Panel) . . . . . . . . . . . . . . . . . . . . . 10-24
Engine Coolant . . . . . . . . . . . . . 10-25
Engine Overheating . . . . . . . . 10-27
Washer Fluid . . . . . . . . . . . . . . . 10-29
Brakes . . . . . . . . . . . . . . . . . . . . . 10-30
Brake Fluid . . . . . . . . . . . . . . . . . 10-32
Battery . . . . . . . . . . . . . . . . . . . . . 10-34
Rear Axle . . . . . . . . . . . . . . . . . . 10-35
Starter Switch Check . . . . . . . 10-35
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-36
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-36
Wiper Blade Replacement . . . . . . . . . . . . . . 10-37
Windshield Replacement . . . 10-37
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-38
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-38
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-38
LED Lighting . . . . . . . . . . . . . . . 10-38
License Plate Lamp . . . . . . . . 10-38
Replacement Bulbs . . . . . . . . . 10-39
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-39
Fuses . . . . . . . . . . . . . . . . . . . . . . 10-40
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-40
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-44
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-47
Winter Tires . . . . . . . . . . . . . . . . 10-48
Run-Flat Tires . . . . . . . . . . . . . . 10-49
Low-Profile Tires . . . . . . . . . . . 10-50
Competition OrientedTires . . . . . . . . . . . . . . . . . . . . . . 10-50
Summer Tires . . . . . . . . . . . . . . 10-51
Tire Sidewall Labeling . . . . . . 10-52
Tire Designations . . . . . . . . . . . 10-53
Tire Terminology and Definitions . . . . . . . . . . . . . . . . 10-54
Tire Pressure . . . . . . . . . . . . . . . 10-57
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . 10-58
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-59
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-60
Tire Inspection . . . . . . . . . . . . . . 10-62

Black plate (8,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
10-8 Vehicle Care
1.Passenger Compartment Air
Filter on page 8-5 (Out of View).
2. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-25.
3. Engine Compartment Fuse
Block on page 10-40.
4. Engine Air Cleaner/Filter on
page 10-20.
5. Engine Cooling Fan (Out of View). See Cooling System
(Aero Panel) on page 10-24 or
Cooling System (Engine) on
page 10-22.
6. Engine Oil Fill Cap. See “When
to Add Engine Oil” underBrake
Fluid on page 10-32.
7. Engine Oil Dipstick. See “Checking Engine Oil” under
Engine Oil on page 10-12.
8. Brake Fluid Reservoir. See “Brake Fluid” underBrakes on
page 10-30. 9. Clutch Master Cylinder
Reservoir (If Equipped). See
Hydraulic Clutch on page 10-19.
10. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-29.

Black plate (10,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
10-10 Vehicle Care
1. Engine Oil Dipstick. See“Checking Engine Oil” under
Engine Oil on page 10-12.
2. Dry Sump Engine Oil Tank Fill Cap. See “Changing Engine Oil
and Filter” Engine Oil on
page 10-12.
3. Passenger Compartment Air
Filter on page 8-5 (Out of View).
4. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-25.
5. Engine Compartment Fuse
Block on page 10-40.
6. Engine Air Cleaner/Filter on
page 10-20.
7. Engine Cooling Fan (Out of View). See Cooling System
(Aero Panel) on page 10-24 or
Cooling System (Engine) on
page 10-22.
8. Brake Fluid Reservoir. See “Brake Fluid” underBrakes on
page 10-30. 9. Clutch Master Cylinder
Reservoir (If Equipped). See
Hydraulic Clutch on page 10-19.
10. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-29.

Black plate (12,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
10-12 Vehicle Care
1. Engine Oil Dipstick. See“Checking Engine Oil” under
Engine Oil on page 10-12.
2. Dry Sump Engine Oil Tank Fill Cap. See “Changing Engine Oil
and Filter” Engine Oil on
page 10-12.
3. Passenger Compartment Air
Filter on page 8-5 (Out of View).
4. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-25.
5. Engine Compartment Fuse
Block on page 10-40.
6. Engine Air Cleaner/Filter on
page 10-20.
7. Engine Cooling Fan (Out of View). See Cooling System
(Aero Panel) on page 10-24 or
Cooling System (Engine) on
page 10-22.
8. Brake Fluid Reservoir. See “Brake Fluid” underBrakes on
page 10-30. 9. Clutch Master Cylinder
Reservoir (If Equipped). See
Hydraulic Clutch on page 10-19.
10. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-29.
Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10-18.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil (Except
Z51 and Z06)
If the ENGINE OIL LOW–ADD OIL
message displays on the Driver
Information Center (DIC), check the
engine oil level right away. See
Engine Oil Messages on page 5-37.
Check the engine oil level regularly.
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the vehicle
must be on level ground. The
engine oil dipstick handle is a loop.
SeeEngine Compartment Overview
on page 10-7 for the location of the
engine oil dipstick.

Black plate (21,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
Vehicle Care 10-21
To remove the hood extractor duct
to gain access:
1. Bolts (4)
2. Hood Extractor Duct
1. Open the hood. SeeHood on
page 10-6.
2. Remove the four bolts (1) and the hood extractor duct (2).
3. Reverse Step 2 to replace the hood extractor duct. To inspect or replace the engine air
cleaner/filter:
1. Surge Tank Coolant Hose
2. Screws (2)
3. Hose Retainers (2)
4. Air Duct Clamp
5. Electrical Connector
{Caution
If the engine coolant surge tank
hose is not carefully lifted out of
the hose retainers on the air
(Continued)
Caution (Continued)
cleaner/filter cover assembly, it
may be damaged and cause
engine coolant to leak. Damage
would not be covered by the
vehicle warranty.
1. Carefully lift the surge tank coolant hose (1) from both hose
retainers (3) and position the
hose to be able to remove the
screws securing the air cleaner/
filter endcap.
2. Loosen the air duct clamp (4) at the air cleaner/filter housing
endcap and move the duct out of
the way.
3. Remove the electrical connector (5) from the sensor.
4. Remove the two screws (2).

Black plate (22,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 10/31/14
10-22 Vehicle Care
5. Turn the air cleaner/filter endcapdownward and disengage the
lower endcap mounting tabs
from the lower retention hinge
features. Be sure to insert the
lower endcap mounting tabs fully
into the housing retention hinge
features before turning the
endcap upward and replacing
the screws.
6. Inspect or replace the air cleaner/filter.
7. Reverse Steps 1–6 to replace the air cleaner/filter endcap. 8. Replace the extractor hood duct.
See above.
{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
{Caution
If the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when you are driving.
Cooling System (Engine)
The cooling system allows the
engine to maintain the correct
working temperature.
LT1 Engine (without Dry Sump
Engine Oil Tank)
1. Coolant Surge Tank withPressure Cap
2. Engine Cooling Fan (Out of View)