
Oils meeting these
requirements should have
the starburst symbol on
the container. This symbol
indicates that the oil has
been certified by the
American Petroleum
Institute (API).
This vehicle's engine was filled at the factory with a
Mobil 1
®synthetic oil meeting all requirements for this
vehicle.
Substitute Engine Oil: When adding oil to maintain
engine oil level, oil meeting GM Standard GM4718M
might not be available. You can add substitute oil
designated SAE 5W-30 with the starburst symbol at all
temperatures. Substitute oil not meeting GM Standard
GM4718M should not be used for an oil change.
Engine Oil Additives / Engine Oil
Flushes
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet GM Standard
GM4718M 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.
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
engine revolutions and engine temperature, and not
on mileage. 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.
6-25

Z06, ZR1, and Grand Sport models 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. See Engine Oil on page 6‑19.
When the system has calculated that oil life has been
diminished, it indicates that an oil change is necessary.
A CHANGE ENGINE OIL message comes on. Change
the oil as soon as possible within the next 1 000 km
(600 miles). It is possible that, if driving under the best
conditions, the oil life system might not indicate that
an oil change is necessary for over a year. However,
the engine oil and filter must be changed at least once
a year and at this time the system must be reset.
Your dealer/retailer has trained service people who
will perform this work using genuine parts and reset
the system. It is also important to check the oil regularly
and keep it at the proper level.
If the system is ever reset accidentally, the oil must be
changed at 5 000 km (3,000 miles) since the last oil
change. Remember to reset the oil life system
whenever the oil is changed.How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to
change the engine oil and filter based on vehicle use.
Whenever the oil is changed, reset the system so it
can calculate when the next oil change is required.
If a situation occurs where the oil is changed prior to
a CHANGE ENGINE OIL message being turned on,
reset the system.
To reset the CHANGE ENGINE OIL message after an
oil change: 1. Press the TRIP button so the OIL LIFE percentage is displayed.
2. Press RESET and hold for two seconds. OIL LIFE REMAINING 100% will appear.
If the CHANGE ENGINE OIL message comes back on
when the vehicle is started, the engine oil life system
has not reset. Repeat the procedure.
6-26

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, 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 Air Cleaner/Filter
See Engine Compartment Overviewon page 6‑14for
the location of the engine air cleaner/filter.
Notice: If you spray water into the engine air
cleaner/filter intake and water enters the engine
air cleaner/filter housing, you could damage your
vehicle's engine. The repairs would not be covered
by your warranty. Do not spray water into the
engine air cleaner/filter intake and/or housing. If you are cleaning the vehicle with the hood open, take
care not to spray water directly near the filter opening of
the air cleaner, as shown in the illustration, as this could
damage the vehicle's engine.
When to Inspect the Engine Air Cleaner/
Filter
Inspect the air cleaner/filter at the Maintenance
II
intervals and replace them at the first oil change after
each 80 000 km (50,000 mile) interval. See Scheduled
Maintenance
on page 7‑3for more information. If you
are driving in dusty/dirty conditions, inspect the filter at
each engine oil change.
How to Inspect the Engine Air Cleaner/
Filter
To inspect the air cleaner/filter, remove the filter from
the vehicle and lightly shake the filter to release loose
dust and dirt. If the filter remains caked with dirt, a new
filter is required.
6-27

Capacities and Specifications
The following approximate capacities are given in English and metric conversions.
See Recommended Fluids and Lubricants
on page 7‑10for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more information.
Cooling System
6.2L LS3 V8 Engine 11.3 L11.9 qt
6.2L LS9 V8 Supercharged Engine –Cooling System 12.0 L12.7 qt
6.2L LS9 V8 Supercharged Engine –Supercharger
Intercooler Cooling System 4.9 L
5.2 qt
7.0L LS7 V8 Engine 11.3 L11.9 qt
Engine Oil with Filter 6.2L LS3 V8 5.7 L6.0 qt
6.2L LS3 V8 with Z52 Dry Sump Oil System 9.9 L10.5 qt
6.2L LS9 V8 Supercharged Engine 9.9 L10.5 qt
7.0L LS7 V8 Engine 9.9 L10.5 qt
Fuel Tank 68.0 L18.0 gal
6-108

Scheduled Maintenance
When the Change Engine Oil Message
Displays
Change engine oil and filter. See Engine Oilon
page 6‑19. An Emission Control Service.
When the Change Engine Oil message displays,
service is required for the vehicle as soon as possible,
within the next 1 000 km/600 miles. If driving under the
best conditions, the engine oil life system might not
indicate the need for vehicle service for more than a
year. The engine oil and filter must be changed at least
once a year and the oil life system must be reset. Your
dealer/retailer has trained service technicians who will
perform this work and reset the system. If the engine
oil life system is reset accidentally, service the vehicle
within 5 000 km/3,000 miles since the last service.
Reset the oil life system whenever the oil is changed.
See Engine Oil Life System on page 6‑25. When the Change Engine Oil message displays,
certain services, checks, and inspections are
required. The services described for Maintenance
I
should be performed at every engine oil change.
The services described for Maintenance IIshould
be performed when:.Maintenance Iwas performed the last time the
engine oil was changed.
.It has been 10 months or more since the Change
Engine Oil message has displayed or since the last
service.
Maintenance I
.Change engine oil and filter. See Engine Oilon
page 6‑19. An Emission Control Service.
.Engine coolant level check. See Engine Coolanton page 6‑34.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑42.
.Tire inflation check. See Inflation - Tire Pressureon page 6‑70.
7-3

.Tire wear inspection. SeeTire Inspection and
Rotation on page 6‑76.
.Fluids visual leak check (or every 12 months,
whichever occurs first). A leak in any system must
be repaired and the fluid level checked.
.Engine air cleaner filter inspection (vehicles
driven in dusty conditions only). See Engine Air
Cleaner/Filter on page 6‑27.
.Brake system inspection (or every 12 months,
whichever occurs first).
Maintenance II
.Perform all services described in Maintenance I.
.Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts
or signs of wear.
.Engine cooling system inspection. Visual
inspection of hoses, pipes, fittings, and clamps
and replacement, if needed.
.Windshield wiper blade inspection for wear,
cracking, or contamination and windshield and
wiper blade cleaning, if contaminated. See
Windshield and Wiper Blades
on page 6‑96.
Worn or damaged wiper blade replacement.
See Windshield Wiper Blade Replacement
on
page 6‑59.
.Body hinges and latches, key lock cylinders, any
folding seat hardware, and rear compartment,
hood, and console door hinges and latches
lubrication. See Recommended Fluids and
Lubricants
on page 7‑10. More frequent
lubrication may be required when vehicle is
exposed to a corrosive environment. Applying
silicone grease on weatherstrips with a clean cloth
makes them last longer, seal better, and not stick
or squeak.
.Restraint system component check. See Checking
the Restraint Systems on page 2‑60.
.Engine air cleaner filter inspection. See Engine Air
Cleaner/Filter on page 6‑27.
.Passenger compartment air filter replacement
(or every 12 months, whichever occurs first). More
frequent replacement may be required if vehicle is
driven regularly under dusty conditions.
Additional Required Services
At Each Fuel Stop
.Engine oil level check. See Engine Oilon
page 6‑19.
.Engine coolant level check. See Engine Coolanton page 6‑34.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑42.
7-4

Once a Month
.Tire inflation check. SeeInflation - Tire Pressureon page 6‑70.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑76.
Once a Year
.Starter switch check. See Owner Checks and
Services on page 7‑8.
.Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services on page 7‑8.
.Automatic transmission shiftlock control system
check. See Owner Checks and Serviceson
page 7‑8.
.Engine cooling system and pressure cap pressure
check. Radiator and air conditioning condenser
outside cleaning. See Cooling System (Engine)
on
page 6‑32or Cooling System (Intercooler)on
page 6‑33.
.Exhaust system and nearby heat shields
inspection for loose or damaged components.
.Accelerator pedal check for damage, high effort,
or binding. Replace if needed.
Once Every Two Years
.Clutch hydraulic system drain, flush, and refill.
Service at a regular service interval (I or II) every
two years. This service can be complex; have your
dealer/retailer perform this service. See Hydraulic
Clutch on page 6‑31.
First Engine Oil Change After Every
40 000 km/25,000 Miles
.Fuel system inspection for damage or leaks.
.ZR1 Only: Engine air cleaner filter replacement.
See Engine Air Cleaner/Filter on page 6‑27.
7-5

First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. See Engine
Air Cleaner/Filter on page 6‑27.
.Automatic transmission fluid change (severe
service) for vehicles mainly driven in heavy city
traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used
for taxi, police, or delivery service. See Automatic
Transmission Fluid on page 6‑31.
First Engine Oil Change After Every
160 000 km/100,000 Miles
.Automatic transmission fluid change (normal
service). See Automatic Transmission Fluidon
page 6‑31.
.Spark plug replacement and spark plug wires
inspection. An Emission Control Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
.Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs
first). See Engine Coolant
on page 6‑34.An
Emission Control Service.
.ZR1 Only: Intercooler system drain, flush, and refill
(or every 5 years, whichever occurs first). See
Engine Coolant on page 6‑34.
.Engine accessory drive belt inspection for fraying,
excessive cracks, or obvious damage and
replacement, if needed. An Emission Control
Service.
7-6