2018 CHEVROLET CORVETTE oil additives

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Driving and Operating 211
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:. For vehicles which are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16 –50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control
system and spark plugs.
(Continued)
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
0 111. 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 0210.
Fuel Additives
To keep fuel systems clean, TOP
TIER detergent gasoline is
recommended. See Fuel0210.
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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Vehicle Care 231
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
Use SAE 5W-30 viscosity grade
engine oil.
Cold Temperature Operation: In an
area of extreme cold, where the
temperature falls below −29 °C
(−20 °F), an SAE 0W-30 oil may be
used. An oil of this viscosity grade
will provide easier cold starting for
the engine at extremely low
temperatures. When selecting an oil
of the appropriate viscosity grade, it
is recommended to select an oil of
the correct specification. See
“Specification” earlier in this section.
For track events or competitive
driving, use Mobil 1 15W-50 engine
oil. A Driver Information Center (DIC) message will display at high
oil temperatures. See
Driver
Information Center (DIC) 0118.
Engine Oil Additives/Engine
Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the
dexos1 specification are all that is
needed for good performance and
engine protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty.
What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products. Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer that
indicates when to change the
engine oil and filter. This is based
on a combination of factors which
include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
Z06, Grand Sport, and Stingray with
Z51 have a racetrack-ready dry
sump engine lubrication system.
This high performance system

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
350 Index
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 252
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 251
Overload . . . . . . . . . . . . . . . . . . . . . 251
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 254
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . 115
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 337
Engine Air Cleaner/Filter . . . . . . . . . . . . . 233
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . 111
Compartment Overview . . . . . . . 221
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 108
Coolant Temperature Warning Light . . . . . . . . . . . . . . . .115
Cooling System . . . . . . . . . . 236, 239
Drive Belt Routing . . . . . . . . . . . . 320
Exhaust . . . . . . . . . . . . . . . . . . . . . . 184
Oil Life System . . . . . . . . . . . . . . . 231
Oil Pressure Light . . . . . . . . . . . . .116
Overheating . . . . . . . . . . . . . . . . . . 240
Power Messages . . . . . . . . . . . . . 125
Running While Parked . . . . . . . . 185 Engine (cont'd)
Starting . . . . . . . . . . . . . . . . . . . . . . . 180
Entry Lighting . . . . . . . . . . . . . . . . . . . 141
Event Data Recorders . . . . . . . . . . 333
Exit Lighting . . . . . . . . . . . . . . . . . . . . 141
Extended Parking . . . . . . . . . . . . . . . 184
Extender, Seat Belt . . . . . . . . . . . . . . 70
Exterior Lamp Controls . . . . . . . . . 137
Exterior Lamps Off Reminder . . . 137
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 142
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter, Engine Air Cleaner . . . . . . . . . . . 233
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 138
Flashers, Hazard Warning . . . . . . 140
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 278
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 300
Fluid Automatic Transmission . . . . . . 232
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 243
Washer . . . . . . . . . . . . . . . . . . . . . . . 241
Folding Mirrors . . . . . . . . . . . . . . . . . . 45
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 331 Front Air Dam . . . . . . . . . . . . . . . . . . 178
Front Seats
Heated and Ventilated . . . . . . . . . . 64
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Additives . . . . . . . . . . . . . . . . . . . . . .211
Economy Driving . . . . . . . . . . . . . . . 25
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 213
Filling the Tank . . . . . . . . . . . . . . . 212
Foreign Countries . . . . . . . . . . . . .211
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 106
Low Fuel Warning Light . . . . . . . .117
Management, Active . . . . . . . . . . 184
Requirements, California . . . . . .211
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 252
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 254
G
Garage Door Opener . . . . . . . . . . . 133Programming . . . . . . . . . . . . . . . . . 133
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 248
Gauges Boost . . . . . . . . . . . . . . . . . . . . . . . . . 107
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 108