recommended oil CHEVROLET CORVETTE C7 2018 Owners Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
22 In Brief
the StabiliTrak OFF lightg
illuminate in the instrument
cluster.
. Press and release
gagain to
turn on both systems.
See Traction Control/Electronic
Stability Control 0192.
The vehicle has Driver Mode
Control and may have Competitive
Driving Mode.
See Driver Mode Control 0194 and
Competitive Driving Mode 0197.
Tire Pressure Monitor
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The low tire pressure warning light
alerts to a significant loss in
pressure of one of the vehicle's
tires. If the warning light comes on,
stop as soon as possible and inflate the tires to the recommended
pressure shown on the Tire and
Loading Information label. See
Vehicle Load Limits
0170. The
warning light will remain on until the
tire pressure is corrected.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the
tire pressures are getting low and
the tires need to be inflated to the
proper pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
See Tire Pressure Monitor System
0 264.
Performance Vehicle
Features
Checking Engine Oil
Your vehicle may have a high
performance dry sump lubrication
system. This system operates differently than a standard engine
lubrication system. See
Engine Oil
0 222.
Check the oil level only after the
engine has been thoroughly warmed
up and then check between five and
10 minutes of shutoff. This ensures
that the oil level reading obtained
will be accurate.
Brake Noise
Under certain weather or operating
conditions, occasional brake squeal
may be heard with the vehicle's
performance braking system. This
brake system is designed for
superior fade resistance and
consistent operation using high
performance brake pads. Brake
squeal is normal and does not affect
system performance.
Tire Chatter/Hop
When driving at slow speeds and in
very tight turns, the vehicle may
have tire chatter/hop. This condition
is normal and the vehicle does not
require service.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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In Brief 23
Road Imperfections/Crown Effects
The vehicle's precise steering and
handling make it very responsive to
road surface feedback. A slight pull
may be felt in the steering
depending on the crown of the road
and/or other road surface variations
such as troughs or ruts. This is
normal and the vehicle does not
require service.
Fuel (LT1 6.2L V8 Engine)
Premium Recommended Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with an octane rating as
low as 87 may be used, but it will
reduce performance and fuel
economy. SeeFuel0206.
Fuel (LT4 6.2L
Supercharged V8 Engine)
Premium Required Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with a 91 octane rating
may be used, but it will reduce
performance and fuel economy. See
Fuel 0206.
E85 or FlexFuel
No E85 or FlexFuel
Gasoline-ethanol fuel blends greater
than E15 (15% ethanol by volume),
such as E85, cannot be used in this
vehicle.
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays a Driver Information
Center (DIC) message when it is
necessary to change the engine oil
and filter. The oil life system should
be reset to 100% only following an
oil change.
Dry Sump Engine Break-In Oil
Change
If equipped with a dry sump engine,
the initial oil and filter change must
be performed at 800 km/500 mi.
Follow the engine oil life system for
every oil change thereafter.
Resetting the Oil Life System
1. Scroll through the DIC Info Pages menu until the
REMAINING OIL LIFE

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
24 In Brief
percentage is displayed. See
Driver Information Center (DIC)
0116.
2. Press and hold SEL on the DIC while the Oil Life display is
active. The oil life will change
to 100%.
See Engine Oil Life System 0227.
Car Wash Guidelines
Caution
Some automatic car washes can
cause damage to the vehicle,
wheels, or convertible top,
if equipped. Automatic car
washes are not recommended,
due to lack of clearance for the
undercarriage and/or wide rear
tires and wheels. See "Washing
the Vehicle" under Exterior Care
0 289
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible:
.
Avoid fast starts and accelerate
smoothly.
. Brake gradually and avoid
abrupt stops.
. Avoid idling the engine for long
periods of time.
. When road and weather
conditions are appropriate, use
cruise control.
. Always follow posted speed
limits or drive more slowly when
conditions require.
. Keep vehicle tires properly
inflated.
. Combine several trips into a
single trip.
. Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size. .
Follow recommended scheduled
maintenance.
. Select Eco Mode for improved
fuel economy. This will result in
better Active Fuel Management
operation. See Active Fuel
Management 0180.
. For recommended shift speeds,
see Manual Transmission 0186.
Premium Fuel
Use the recommended fuel. See
Fuel 0206.
Roadside Assistance
Program
U.S.: 1-800-243-8872
TTY Users (U.S. Only):
1-888-889-2438
Canada: 1-800-268-6800
New Chevrolet owners are
automatically enrolled in the
Roadside Assistance Program.
See Roadside Assistance Program
0 320.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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118 Instruments and Controls
recommended in the Maintenance
Schedule. SeeMaintenance
Schedule 0299.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display accidentally at any time
other than when the oil has just
been changed. It cannot be reset
accurately until the next oil change.
To reset the engine oil life system,
press and hold SEL for several
seconds while the Oil Life display is
active. See Engine Oil Life System
0 227.
Tire Pressure : Displays the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber.
See Tire Pressure Monitor System
0 264 andTire Pressure Monitor
Operation 0265.
Best Average Fuel Economy :
Displays the average fuel economy,
the best fuel economy over the
selected distance, and a bar graph showing instantaneous fuel
economy. Press
pto change the
selected distance.
Fuel Used/Timer : Displays the
approximate liters (L) or
gallons (gal) of fuel that have been
used since last reset. The fuel used
can be reset by pressing and
holding SEL while this display is
active.
This display can also be used as a
timer. To start/stop the timer, press
pwhile this display is active and
then SEL to start/stop the timer. The
display will show the amount of time
that has passed since the timer was
last reset. To reset the timer to zero,
press and hold SEL or use
pto
access the menu while this display
is active.
ECO Index : Aids the driver in
determining how efficiently they are
driving.
This display may also show the
number of cylinders the vehicle is
running on. See Active Fuel
Management 0180. Speed Limit :
Displays sign
information, which comes from a
roadway database in the onboard
navigation.
Engine Hours/Lifetime Revs :
Displays the total number of hours
the engine has run. It also shows
total engine revolutions divided by
10,000.
Head-Up Display (HUD)
{Warning
If the HUD image is too bright,
or too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the
operation of the vehicle is projected
onto the windshield.
The HUD information appears as an
image focused out toward the front
of the vehicle.

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Driving and Operating 157
The vehicle may straighten out.
Be ready for a second skid if it
occurs.
. Slow down and adjust your
driving according to weather
conditions. Stopping distance
can be longer and vehicle
control can be affected when
traction is reduced by water,
snow, ice, gravel, or other
material on the road. Learn to
recognize warning clues —such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
. Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes help
avoid only the braking skid.Track Events and
Competitive Driving
{Danger
High-performance features are
intended for use only on closed
tracks by experienced and
qualified drivers and should not
be used on public roads.
High-speed driving, aggressive
cornering, hard braking, and other
high-performance driving can be
dangerous. Improper driver inputs
for the conditions may result in
loss of control of the vehicle,
which could injure or kill you or
others. Always drive safely.
Participating in track events or other
competitive driving without following
the instructions provided may affect
the vehicle warranty. See the
warranty manual before using the
vehicle for racing or other
competitive driving. See Competitive
Driving Mode 0197. A manual transmission is
recommended for extended track
usage at higher ambient
temperatures. Consult the Track
Preparation Guide for additional
information. See your dealer.
Be sure to follow all service
procedures before driving the
vehicle at track events or
competitively.
Engine Sound Management
Setting
Caution
Do not place the vehicle in
Engine Sound Management
–
Stealth mode. Damage could
result to exhaust valve actuators.
Engine Oil
Caution
If the vehicle is used for track
events and competitive driving,
the engine may use more oil than (Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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158 Driving and Operating
Caution (Continued)
it would with normal use. Low oil
levels can damage the engine.
Check the oil level often and
maintain the proper level. See
Engine Oil0222.
Caution
Not changing the engine oil to
15W-50 may cause engine
damage. Engine oil must be
changed to 15W-50 synthetic.
See Capacities and Specifications
0 313.
Z51 Performance Package, Grand
Sport, and Z06 Only: Check the oil
level often during track events and
competitive driving and keep the
level at or near 0.5 L (0.5 qt) above
the upper mark that shows the
proper operating range on the
engine oil dipstick. After the
competitive driving, remove excess oil so that the level on the dipstick is
not above the upper mark that
shows the proper operating range.
Stingray without Z51 Performance
Package: Additional oil fill above the
upper mark on the dipstick is not
recommended for track events or
other competitive driving. Check the
oil level often during racing or other
competitive driving and keep the
level at or near the upper mark that
shows the proper operating range
on the engine oil dipstick. After the
competitive driving, remove excess
oil so that the level on the dipstick is
not above the upper mark that
shows the proper operating range.
After track use, change the oil back
to 5W-30 for street use. See
Engine
Oil 0222.
Automatic Transmission Fluid
Have the transmission fluid set to
the track specific oil level prior to
track usage. Transmission fluid
should be changed after every
15 hours of track usage. Any
transmission level set or change
should be performed at your dealer. Manual Transmission Fluid
Manual transmission fluid should be
changed after every 15 hours of
track usage.
Brake Fluid
Replace existing brake fluid with a
qualified high performance brake
fluid from a sealed container. Brake
fluid with a dry boiling point >279 °C
(534 °F) is qualified. If high
performance brake fluid is used,
replace it with GM approved brake
fluid before driving on public roads.
If high performance brake fluid is in
the vehicle and the age of the brake
fluid is over a month old or
unknown, replace the brake fluid
before track events and competitive
driving. Do not use silicone or
DOT-5 brake fluids.
Load Limit
Z51 Performance Package Only:
Limit vehicle load to the driver only,
with no other cargo. Inflate tires to
180 kPa (26 psi) and drive at a
maximum speed of 280 km/h
(174 mph).

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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174 Driving and Operating
Starting and
Operating
New Vehicle Break-In
Follow these recommended
guidelines during the first 2 414 km
(1,500 mi) of driving this vehicle.
Parts have a break-in period and
performance will be better in the
long run.
For the first 322 km (200 mi):
.To break in new tires, drive at
moderate speeds and avoid hard
cornering.
. New brake linings also need a
break-in period. Avoid making
hard stops. This is
recommended every time brake
linings are replaced.
For the first 800 km (500 mi):
. Avoid full throttle starts and
abrupt stops.
. Do not exceed 4000 rpm. .
Avoid driving at any one
constant speed, fast or slow,
including the use of cruise
control.
. Avoid downshifting to brake or
slow the vehicle when the
engine speed will exceed
4000 rpm.
. Do not let the engine labor.
Never lug the engine. With a
manual transmission, shift to the
next lower gear. This rule
applies at all times, not just
during the break-in period.
. If equipped with a dry sump
engine (Stingray with Z51,
Grand Sport, and Z06), the initial
oil and filter change must be
performed at 800 km (500 mi).
For the first 2 414 km (1,500 mi):
. Do not participate in track
events, sport driving schools,
or similar activities.
. Check engine oil with every
refueling and add if necessary.
Oil and fuel consumption may be
higher than normal.
Front Air Dam
If equipped, the front air dam has
minimal ground clearance.
Under normal operation, the
components will occasionally
contact some road surfaces (speed
bumps, driveway ramps, etc.). This
can be heard inside the vehicle as a
scraping noise. This is normal and
does not indicate a problem.
Use care when approaching bumps
or objects on road surfaces and
avoid them when possible.
Composite Materials
This vehicle may be equipped with
parts containing carbon fiber,
sheet-molding compound or other
composite materials.
Dealer-installed accessories may
also contain composite materials.
These parts and accessories may
include the splitter or rocker
extensions.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 207
Caution (Continued)
.Fuel with a posted octane
rating of less than the
recommended fuel. Using
this fuel will lower fuel
economy and performance,
and may decrease the life of
the emissions catalyst.
California Fuel
Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. See
the underhood emission control
label. If this fuel is not available in
states adopting California Emissions
Standards, the vehicle will operate
satisfactorily on fuels meeting
federal specifications, but emission
control system performance may be
affected. The malfunction indicator
lamp could turn on and the vehicle
may not pass a smog-check test.
See Malfunction Indicator Lamp
0 109. If this occurs, return to your authorized dealer for diagnosis. If it
is determined that the condition is
caused by the type of fuel used,
repairs may not be covered by the
vehicle warranty.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock
index (AKI). For fuel not to use in a
foreign country, see
“Prohibited
Fuels” inFuel 0206.
Fuel Additives
To keep fuel systems clean, TOP
TIER detergent gasoline is
recommended. See Fuel0206.
If TOP TIER detergent gasoline is
not available, one bottle of GM Fuel
System Treatment Cleaner added to
the fuel tank at every engine oil
change, can help. GM Fuel System
Treatment Cleaner is the only
gasoline additive recommended by
General Motors. It is available at
your dealer.
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death. . To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Do not use a cell phone
while refueling.
. Do not reenter the vehicle
while pumping fuel.
. Keep children away from
the fuel pump and never let
children pump fuel.
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 223
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when
checking a cold engine prior to
starting. Remove the dipstick
and check the level.
. If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is
warm, or at least 30 minutes if
the engine is not warm. Pull out
the dipstick, wipe it with a clean
paper towel or cloth, then push it
back in all the way. Remove it
again, keeping the tip down, and
check the level.
When to Add Engine Oil
(Except Z06, Grand Sport, and
Stingray with Z51)
If the oil is below the cross-hatched
area at the tip of the dipstick and
the engine has been off for at least 15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See
“Selecting the Right
Engine Oil” later in this section for
an explanation of what kind of oil to
use. For engine oil crankcase
capacity, see Capacities and
Specifications 0313.
See Track Events and Competitive
Driving 0157 for additional
information on engine oil.
Caution
Do not add too much oil. Oil
levels above or below the
acceptable operating range
shown on the dipstick are harmful
to the engine. If you find that you
have an oil level above the
operating range, i.e., the engine
has so much oil that the oil level
gets above the cross-hatched
area that shows the proper
operating range, the engine could
be damaged. You should drain
out the excess oil or limit driving
(Continued)
Caution (Continued)
of the vehicle and seek a service
professional to remove the
excess amount of oil.
See Engine Compartment Overview
0 217 for the location of the engine
oil fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 225
paper towel or a cloth.
Re-insert the dipstick into the
external oil tank, pushing it all
the way in until it stops.
5. Remove the dipstick from the oil tank and read the level on
the cross-hatched area.
When to Add Engine Oil (Z06,
Grand Sport, and Stingray
with Z51)
If the oil is below the cross-hatched
area at the tip of the dipstick, add
1 L (1 qt) of the recommended oil
through the oil fill cap opening in the
oil tank and then recheck the level.
See “Selecting the Right Engine Oil”
for an explanation of what kind of oil to use. For engine oil crankcase
capacity, see
Capacities and
Specifications 0313.
See Track Events and Competitive
Driving 0157 for additional
information on engine oil.
Caution
Do not add too much oil. Oil
levels above or below the
acceptable operating range
shown on the dipstick are harmful
to the engine. If you find that you
have an oil level above the
operating range, i.e., the engine
has so much oil that the oil level
gets above the cross-hatched
area that shows the proper
operating range, the engine could
be damaged. You should drain
out the excess oil or limit driving
of the vehicle and seek a service
professional to remove the
excess amount of oil.
See Engine Compartment Overview
0 217 for the location of the external
engine oil tank and fill cap. Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back into the oil tank when through.
Changing Engine Oil and Filter
(Z06, Grand Sport, and
Stingray with Z51)
The vehicle may have a
racetrack-ready dry sump engine
lubrication system. This high
performance system operates
differently than a standard engine
lubrication system and requires a
special procedure when changing
the engine oil and filter. Follow this
procedure closely when changing
the engine oil and filter.