Page 92 of 372

When the fuel tank is low on fuel,
a Fuel Level Low message will
appear on the Driver Information
Center (DIC). For more information
seeFuel System Messages on
page 4-33.
Here are some situations that can
occur with the fuel gage. None of
these indicate a problem with
the fuel gage.
•At the gas station, the fuel pump
shuts off before the gage
reads full.
•It takes a little more or less fuel to
fill up than the fuel gage indicated.
For example, the gage may have
indicated the tank was half full,
but it actually took a little more or
less than half the tank’s capacity
to fill the tank.
•The pointer on the fuel gage is on
empty when the ignition is off.
Engine Oil
Pressure Gage
The oil pressure gage, located in
front of the shifter, shows the engine
oil pressure in psi (pounds per
square inch) when the engine is
running. Canadian vehicles indicate
pressure in kPa (kilopascals).
Oil pressure may vary with engine
speed, outside temperature and oil
viscosity, but readings above the low
pressure zone indicate the normal
operating range. When the oil
pressure reaches the low pressure
zone, a message appears in the
Driver Information Center (DIC). United States
Canada
4-12 Instruments and Controls
Page 243 of 372

What Kind of Engine Oil to
Use (V6 Engine)
Look for three things:
•GM6094M
Use only an oil that meets GM
Standard GM6094M.
•SAE 5W-30
SAE 5W-30 is best for the
vehicle. These numbers on an
oil container show its viscosity,
or thickness. Do not use
other viscosity oils such
as SAE 20W-50.
•American Petroleum Institute
(API) starburst symbol
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).Notice:Use only engine oil
identi ed as meeting GM Standard
GM6094M and showing the
American Petroleum Institute
Certi ed For Gasoline Engines
starburst symbol. Failure to use
the recommended oil can result
in engine damage not covered by
the vehicle warranty.
Cold Temperature Operation
If in an area of extreme cold,
where the temperature falls
below−29°C (−20°F), use either
an SAE 5W-30 synthetic oil or an
SAE 0W-30 engine oil. Both provide
easier cold starting for the engine at
extremely low temperatures. Always
use an oil that meets the required
specification, GM6094M.
Vehicle Care 9-11
Page 244 of 372

What Kind of Engine Oil to Use
(V8 Engines)
Look for three things:
•GM4718M
This vehicle’s engine requires a
special oil meeting GM Standard
GM4718M. Oils meeting this
standard may be identified as
synthetic. However, not all
synthetic oils will meet this GM
standard. Use only an oil that
meets GM Standard GM4718M.
Notice:Using oils that do not
have the GM4718M Standard
designation can cause engine
damage not covered by the
vehicle warranty.
•SAE 5W-30
SAE 5W-30 is best for the
vehicle. These numbers on an
oil container show its viscosity,
or thickness. Do not use
other viscosity oils such
as SAE 20W-50.
•American Petroleum Institute
(API) starburst symbol
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.
9-12 Vehicle Care
Page 335 of 372

Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil (V6 Engine) Engine oil which meets GM Standard GM6094M and displays the
American Petroleum Institute Certified for Gasoline Engines starburst
symbol. To determine the proper viscosity for the vehicle’s engine, see
Engine Oil on page 9-10
.
Engine Oil (V8 Engines) The engine requires a special engine oil meeting GM Standard GM4718M.
Oils meeting this standard can be identified with the American Petroleum
Institute (API) Certified for Gasoline Engines starburst symbol. However,
not all synthetic API oils with the starburst symbol will meet this GM
standard. Look for and use only an oil that meets GM Standard GM4718M.
For the proper viscosity, see
Engine Oil on page 9-10.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®
Coolant. See
Engine Coolant on page 9-19 .
Hydraulic Brake System Hydraulic Brake Fluid (GM Part No. U.S. 88862806, in Canada 88862807).
Hydraulic Clutch System Hydraulic Brake Fluid (GM Part No. U.S. 88862806, in Canada 88862807). Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Power Steering System DEXRON®-VI Automatic Transmission Fluid.
Parking Brake Cable Guides Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Manual Transmission (V6 Engine) SAE 75W-90 GL5 Gear Oil (GM Part No. U.S. 88862475,
in Canada 88862476).
Service and Maintenance 10-7