2001 CHEVROLET CORVETTE oil viscosity

Service Station Guide
Oil Viscosity
Engine Oil
See Section 6
Tire Pressure
See Section 6
Engine Oil Dipstick
See Section 6
Cooling System
See Section 5
Battery
See Section 6
Windshield Washer
Fluid
See Section 6
Hood Release
See Section 6
Remote Fuel
Release Door
See Section 6

For
a More
Detailed Look at
What's Under the Hood
See Section 6
Alternate
Fuel Door Release
See Section 6
Fuel
Use unleaded only.
See Section 6
for octane ratings.

2-90
Emissions Inspection and Maintenance Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
CHECK ENGINE light is on or not working properly.
Your vehicle will not pass this inspection if the
OBD (on
-board diagnostic) system determines that
critical emission control systems have not been
completely diagnosed by the system. The vehicle would
be considered not ready for inspection. This can happen
if you have recently replaced your battery or if your
battery has run down. The diagnostic system is designed
to evaluate critical emission control systems during
normal driving. This may take several days of routine
driving. If you have done this and your vehicle still does
not pass the inspection for lack of OBD system
readiness, see your dealer or qualified service center to
prepare the vehicle for inspection.
Engine Oil Pressure Gage
United States Canada
The engine oil pressure gage shows the engine oil
pressure in psi (pounds per square inch) or
kPa (kilopascals) when the engine is running.
Oil pressure should be 20 to 80 psi (140 to 550 kPa).
In certain situations such as long, extended idles on hot
days, it could read as low as 6 psi (40 kPa) and still be
considered normal. It may vary with engine speed,
outside temperature and oil viscosity, but readings above
the shaded area show the normal operating range.
Readings in the shaded area tell you that the engine is
low on oil, or that you might have some other oil
problem. See ªEngine Oilº in the Index.

6-15

SAE 5W-30
As shown in the viscosity chart, SAE 5W
-30 is best
for your vehicle. However, you can use SAE
10W
-30 if it's going to be 0F (-18C) or above.
These numbers on an oil container show its viscosity,
or thickness. Do not use other viscosity oils such
as SAE 20W
-50.
Oils meeting these
requirements should also
have the starburst symbol
on the container. This
symbol indicates that the
oil has been certified by
the American Petroleum
Institute (API).You should look for this on the oil container, and use
only those oils that are identified as meeting GM
Standard 4718M and have the starburst symbol on the
front of the oil container.
Your vehicle's engine is filled at the factory with a
Mobil 1
 synthetic oil, which meets all requirements for
your vehicle.
Substitute Engine Oil: When adding oil to maintain
engine oil level, oil meeting GM Standard GM4718M
may not be available. You can add substitute oil
designated SAE 5W
-30 with the starburst symbol at all
temperatures. If temperatures are above 0F (
-18C),
you may substitute SAE 10W
-30 with the starburst
symbol. Substitute oil not meeting GM Standard
GM4718M should not be used for an oil change.
Engine Oil Additives
Don't add anything to your oil. The recommended oils
with the starburst symbol are all you will need for good
performance and engine protection.

7-19
Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by
name, part number or specification may be obtained
from your dealer.
USAGE
FLUID/LUBRICANT
Engine OilThe engine requires a special
engine oil meeting GM
Standard GM4718M. Oils meeting
this standard may be identified as
synthetic, and should also be
identified with the American
Petroleum Institute Certified for
Gasoline Engines starburst
symbol. However, not all synthetic
API oils with the starburst symbol
will meet this GM standard.
You should look for and use
only an oil that meets GM
Standard GM4718M. For the
proper viscosity, see ªEngine Oilº
in the Index.
USAGEFLUID/LUBRICANT
Engine Coolant50/50 mixture of clean, drinkable
water and use only GM
Goodwrench

DEX-COOL
or
Havoline
DEX-COOL

Coolant. See ªEngine Coolantº in
the Index.
Hydraulic
Brake SystemDelco Supreme 11
Brake Fluid
(GM Part No. 12377967 or
equivalent DOT
-3 brake fluid).
Windshield
Washer SolventGM Optikleen
Washer
Solvent (GM Part No. 1051515)
or equivalent.
Hydraulic
Clutch SystemHydraulic Clutch Fluid
(GM Part No. 12345347 or
equivalent DOT
-3 brake fluid).
Power
Steering SystemGM Power Steering Fluid
(GM Part No. 1052884
- 1 pint,
1050017
- 1 quart, or equivalent).