fuel CHEVROLET CORVETTE 2012 6.G Owner's Manual

Black plate (13,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-13
WARNING (Continued)
Clear away snow from around the
base of your vehicle, especially
any that is blocking the exhaust.
Run the engine for short periods
only as needed to keep warm,
but be careful.
To save fuel, run the engine for only
short periods as needed to warm
the vehicle and then shut the engine
off and close the window most of
the way to save heat. Repeat this
until help arrives but only when you
feel really uncomfortable from the
cold. Moving about to keep warm
also helps.
If it takes some time for help to
arrive, now and then when you run
the engine, push the accelerator
pedal slightly so the engine runs
faster than the idle speed. This
keeps the battery charged to restart the vehicle and to signal for
help with the headlamps. Do this as
little as possible to save fuel.
If the Vehicle Is Stuck
Slowly and cautiously spin the
wheels to free the vehicle when
stuck in sand, mud, ice, or snow.
If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method.
{WARNING
If the vehicle's tires spin at high
speed, they can explode, and you
or others could be injured. The
vehicle can overheat, causing an
engine compartment fire or other
damage. Spin the wheels as little
as possible and avoid going
above 55 km/h (35 mph).
For information about using tire
chains on the vehicle, see Tire
Chains on page 10‑80.
Rocking the Vehicle to Get
it Out
Turn the steering wheel left and
right to clear the area around the
front wheels. Turn off any traction
system. Shift back and forth
between R (Reverse) and a forward
gear, or with a manual transmission,
between 1 (First) or 2 (Second) and
R (Reverse), spinning the wheels
as little as possible. To prevent
transmission wear, wait until the
wheels stop spinning before shifting
gears. Release the accelerator
pedal while shifting, and press
lightly on the accelerator pedal
when the transmission is in gear.
Slowly spinning the wheels in the
forward and reverse directions
causes a rocking motion that could
free the vehicle. If that does not get
the vehicle out after a few tries, it
might need to be towed out. If the
vehicle does need to be towed out,
see Towing the Vehicle on
page 10‑86.

Black plate (17,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-17
The GVWR includes the weight
of the vehicle, all occupants,
fuel and cargo. Never exceed
the GVWR for your vehicle,
or the Gross Axle Weight
Rating (GAWR) for either the
front or rear axle.
Do not load your vehicle
with more weight than it was
designed to carry. See“Steps
for Determining Correct Load
Limit” earlier in this section.
{WARNING
Do not load the vehicle any
heavier than the Gross
Vehicle Weight Rating
(GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
(Continued)
WARNING (Continued)
This can cause systems to
break and change the way the
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
shorten the life of the vehicle.
Notice : Overloading the
vehicle may cause damage.
Repairs would not be covered
by the vehicle warranty. Do
not overload the vehicle.
If you put things inside your
vehicle —like suitcases,
tools, packages or anything
else —they will go as fast as
the vehicle goes. If you have to
stop or turn quickly, or if there is
a crash, they will keep going.{WARNING
Things you put inside your
vehicle can strike and injure
people in a sudden stop or
turn, or in a crash.
.Put things in the rear area
of your vehicle. Try to
spread the weight evenly.
.Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
.Do not leave an
unsecured child restraint
in your vehicle.
.When you carry something
inside the vehicle, secure
it whenever you can.

Black plate (18,1)Chevrolet Corvette Owner Manual - 2012
9-18 Driving and Operating
Starting and
Operating
New Vehicle Break-In
Follow these recommended
guidelines during the first 2 414 km
(1,500 miles) 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 miles):
.To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first 322 km
(200 miles).
.New brake linings also need a
break- in period. Avoid making
hard stops during the first
322 km (200 miles). This is
recommended every time brake
linings are replaced.For the first 80 km (500 miles):
.Avoid full throttle starts and
abrupt stops.
.Do not exceed 4,000 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 in high
gear at low speeds. With a
manual transmission, shift to
the next lower gear. This rule
applies at all times, not just
during the break-in period.
For the first 2 414 km (1,500 miles):
.Do not participate in track
events, sport driving schools,
or similar activities during the
first 2 414 km (1,500 miles).
.Check engine oil with every
refueling and add if necessary.
Oil and fuel consumption may be
higher than normal during the
first 2 414 km (1,500 miles).
Front Air Dam
The vehicle is equipped with a front
air dam which has minimal ground
clearance.
Vehicles with the ZR1 package,
or Z06 vehicles with RPO CFZ, also
come with a splitter made from
carbon fiber.

Black plate (28,1)Chevrolet Corvette Owner Manual - 2012
9-28 Driving and Operating
The vehicle has an automatic
transmission shift lock control
system. You have to fully apply the
brakes and then press the shift lever
button before you can shift from
P (Park) when the vehicle is
running. If you cannot shift out of
P (Park), ease pressure on the shift
lever and push the shift lever all the
way into P (Park) as you maintain
brake application. Then press the
shift lever button and move the shift
lever into another gear. SeeShifting
out of Park on page 9‑25.
R (Reverse): Use this gear to
back up.
Notice: Shifting to R (Reverse)
while the vehicle is moving
forward could damage the
transmission. The repairs would
not be covered by the vehicle
warranty. Shift to R (Reverse) only
after the vehicle is stopped.
To rock the vehicle back and forth to
get out of snow, ice, or sand without
damaging the transmission, see If
the Vehicle Is Stuck on page 9‑13. N (Neutral):
In this position, the
engine does not connect with the
wheels. To restart the engine when
the vehicle is already moving, use
N (Neutral) only. If the vehicle needs
towing, see Towing the Vehicle on
page 10‑86.
{WARNING
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift
into a drive gear while the engine
is running at high speed.
Notice: Shifting out of P (Park) or
N (Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure the
engine is not running at high
speed when shifting the vehicle. D (Drive):
This position is for
normal driving. It provides the best
fuel economy. If you need more
power for passing, push the pedal
down to achieve the desired level of
acceleration.
Downshifting the transmission in
slippery road conditions could result
in skidding. See “Skidding”under
Loss of Control on page 9‑5.
S (Sport Mode): When in
S (Sport Mode), the transmission will
work as an automatic until you use
the Manual Paddle Shift Controls,
which activates driver manual gear
selection. See Manual Mode on
page 9‑29. While in S (Sport Mode),
the transmission will have more
noticeable upshifts for sportier
vehicle performance.

Black plate (31,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-31
For vehicles with a 2.56:1 Axle
Ratio (RPO GM8)
.Up-shifts to 4 (Fourth) gear
require approximately
35 km/h (22 mph).
.Up-shifts to 5 (Fifth) gear
require approximately
45 km/h (28 mph).
.Up-shifts to 6 (Sixth) gear
require approximately
65 km/h (41 mph).
To prevent damage to the
powertrain, Manual Paddle
downshifts to a lower gear cannot
be done above certain speeds.
The maximum speed allowed for
downshifting of gears 1 (First)
through 4 (Fourth) are:
.Into 4 (Fourth) gear over
250 km/h (155 mph).
.Into 3 (Third) gear over
188 km/h (117 mph).
.Into 2 (Second) gear over
120 km/h (75 mph).
.Into 1 (First) gear over
68 km/h (42 mph).
For vehicles with a 2.73:1 Axle
Ratio (RPO GU2)
.Up-shifts to 4 (Fourth) gear
require approximately
31 km/h (19 mph).
.Up-shifts to 5 (Fifth) gear require
approximately 39 km/h (24 mph).
.Up-shifts to 6 (Sixth) gear
require approximately
57 km/h (35 mph).
To prevent damage to the
powertrain, Manual Paddle
downshifts to a lower gear cannot
be done above certain speeds. The maximum speed allowed for
downshifting of gears 1 (First)
through 4 (Fourth) are:
.Into 4 (Fourth) gear over
234 km/h (145 mph).
.Into 3 (Third) gear over
176 km/h (109 mph).
.Into 2 (Second) gear over
113 km/h (70 mph).
.Into 1 (First) gear over
64 km/h (40 mph).
If the driver does not request an
upshift 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 for more information.

Black plate (33,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-33
Shift Speeds
(Manual Transmission)
{WARNING
If you skip a gear when you
downshift, you could lose control
of the vehicle. You could injure
yourself or others. Do not shift
down more than one gear at a
time when you downshift.This chart shows when to shift to the next higher gear for the best
fuel economy.
Manual Transmission RecommendedShift Speeds in km/h (mph)
Engine Acceleration Shift Speed
1 to 2 2 to 3 3 to 4 4 to 5 5 to 6
All Engines 24 (15) 40 (25) 64 (40) 72 (45) 80 (50)
If the engine speed drops below
900 rpm, or if the engine is not
running smoothly, you should
downshift to the next lower gear.
You may have to downshift two or
more gears to keep the engine
running smoothly or for good
engine performance. Notice:
When shifting gears, do
not move the shift lever around
unnecessarily. This may damage
the transmission. Shift directly
into the next gear.

Black plate (34,1)Chevrolet Corvette Owner Manual - 2012
9-34 Driving and Operating
One to Four Shift Light
(Manual Transmission)
When this light comes on, you can
only shift from 1 (First) to 4 (Fourth)
instead of 1 (First) to 2 (Second).
SeeOne-to-Four Shift Light (Manual
Transmission) on page 5‑23 for
more information.
Downshifting
(Manual Transmission)
Do not downshift into the gear
shown below at a speed greater
than shown in the table:
1 (First) 80 km/h (50 mph)
2 (Second) 119 km/h (74 mph)
3 (Third) 163 km/h
(101 mph)
4 (Fourth) 209 km/h
(130 mph)
Notice: If you skip more than one
gear when you downshift, or if
you race the engine when you
release the clutch pedal while
downshifting, you could damage
the engine, clutch, driveshaft or
the transmission. Do not skip
gears or race the engine when
downshifting. The six-speed transmission has a
spring that centers the shift lever
near 3 (Third) and 4 (Fourth). This
spring helps you know which gear
you are in when you are shifting.
Be careful when shifting from
1 (First) to 2 (Second) or
downshifting from 6 (Sixth) to
5 (Fifth). The spring will try to pull
the shift lever toward 4 (Fourth) and
3 (Third). Make sure you move the
lever into 2 (Second) or 5 (Fifth).
If you let the shift lever move in the
direction of the pulling, you may end
up shifting from 1 (First) to 4 (Fourth)
or from 6 (Sixth) to 3 (Third).
If the driver does not upshift 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
for more
information.

Black plate (48,1)Chevrolet Corvette Owner Manual - 2012
9-48 Driving and Operating
Fuel
Use of the recommended fuel
is an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
The eighth digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that
identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. SeeVehicle
Identification Number (VIN) on
page 12‑1.
Recommended Fuel
If the vehicle has the 6.2L V8 engine
(VIN Code W), use premium
unleaded gasoline with a posted
octane rating of 91 or higher. You
can also use regular unleaded
gasoline rated at 87 octane or
higher, but the vehicle's acceleration
could be slightly reduced, and a
slight audible knocking noise,
commonly referred to as spark
knock, might be heard. If the octane
is less than 87, a heavy knocking
noise might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. Otherwise, you could
damage the engine. If heavy
knocking is heard when using
gasoline rated at 87 octane or
higher, the engine needs service.

Black plate (49,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-49
If the vehicle has the 6.2L V8 engine
(VIN Code T) or the 7.0L V8 engine
(VIN Code E), use premium
unleaded gasoline with a posted
octane rating of 91 or higher. For
best performance, use premium
unleaded gasoline with a posted
octane rating of 93. In an
emergency, you can use regular
unleaded gasoline with an octane
rating of 87 or higher. If 87 octane
fuel is used, do not perform any
aggressive driving maneuvers such
as wide open throttle applications.
You might also hear audible spark
knock during acceleration. Refill the
tank with premium fuel as soon as
possible to avoid damaging the
engine. If heavy knocking is heard
when using gasoline rated at
91 octane or higher, the engine
needs service.Gasoline Specifications
(U.S. and Canada Only)
At a minimum, gasoline should
meet ASTM specification D 4814in the United States or
CAN/CGSB‐3.5 or 3.511 in
Canada. Some gasolines contain
an octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. See Fuel Additives
on page 9‑50 for additional
information.
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 might
be affected. The malfunction
indicator lamp could turn on and the
vehicle might fail a smog‐check test.
See
Malfunction Indicator Lamp on
page 5‑19. 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 might not be covered by
the vehicle warranty.
Fuels in Foreign
Countries
Never use leaded gasoline or any
other fuel not recommended in the
previous text on fuel. Costly repairs
caused by use of improper fuel
would not be covered by the
vehicle warranty.
To check the fuel availability, ask an
auto club, or contact a major oil
company that does business in the
country where you will be driving.

Black plate (50,1)Chevrolet Corvette Owner Manual - 2012
9-50 Driving and Operating
Fuel Additives
To provide cleaner air, all gasolines
in the United States are now
required to contain additives that
help prevent engine and fuel system
deposits from forming, allowing the
emission control system to work
properly. In most cases, nothing
should have to be added to the fuel.
However, some gasolines contain
only the minimum amount of
additive required to meet U.S.
Environmental Protection Agency
regulations. To help keep fuel
injectors and intake valves clean
and avoid problems due to dirty
injectors or valves, look for gasoline
that is advertised as TOP TIER
Detergent Gasoline. Look for the
TOP TIER label on the fuel pump to
ensure gasoline meets enhanced
detergency standards developed by
the auto companies. A list of
marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.For customers who do not use
TOP TIER Detergent Gasoline
regularly, one bottle of GM Fuel
System Treatment PLUS, added to
the fuel tank at every engine oil
change, can help clean deposits
from fuel injectors and intake
valves. GM Fuel System Treatment
PLUS is the only gasoline additive
recommended by General Motors.
It is available at your dealer.
Gasolines containing oxygenates,
such as ethers and ethanol, and
reformulated gasolines might be
available in your area. We
recommend that you use these
gasolines, if they comply with the
specifications described earlier.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must not be used in
vehicles that were not designed for
those fuels.
Notice:
This vehicle was not
designed for fuel that contains
methanol. Do not use fuel
containing methanol. It can
corrode metal parts in the fuel
system and also damage plastic
and rubber parts. That damage
would not be covered under the
vehicle warranty.
Some gasolines that are
not reformulated for low
emissions can contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant
where you buy gasoline whether the
fuel contains MMT. We recommend
against the use of such gasolines.
Fuels containing MMT can reduce
spark plug life and affect emission
control system performance. The
malfunction indicator lamp might
turn on. If this occurs, return to
your dealer for service.