Page 137 of 404

Downloaded from www.Manualslib.com manuals search engine Engine Oil Pressure Gage low on oil, or that you might have some other oil
problem. See “Engine Oil” in the Index.
\+
0
/
0 80
ez
\+
0
/
120 0
5.7L Engine 3800 Engine
This gage tells you if there could be a problem with your
engine oil pressure.
The engine oil pressure gage shows the engine oil
pressure
in psi (pounds per square inch) in the U.S., or
kPa (kilopascals) in Canada, when the engine is running.
Oil pressure should be
20 to 80 psi (140 to 550 kPa). On
the
3800 engine, the oil pressure should be between 20
and 120 psi (140 to 827 kPa). It may vary with engine
speed, outside temperature and oil viscosity, but
readings above the red area show the normal operating
range. Readings in the red area
tell you that the engine is
Don’t keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon
as possible and have your
vehicle serviced.
I NOTICE: I
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
Page 260 of 404

Downloaded from www.Manualslib.com manuals search engine When to Add Oil
If the oil is at or below the ADD line, then you’ll need
to add some oil. But you must use the right kind. This
part explains what kind of oil to use. For crankcase
capacity, see “Capacities and Specifications” in
the Index.
What Kind of Oil to Use
Oils recommended for your vehicle can be identified by
looking for the “Starburst” symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute
(API). Do not use any oil which
does not
carry this Starburst symbol.
NOTICE:
I
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
cross-hatched area upper mark that shows
the proper operating range, your engine could
be damaged.
The oil fill cap is located on the valve cover near the
oil dipstick.
Just
fill it enough to put the level somewhere in the
proper operating range. Push the dipstick all the way
back
in when you’re through. If you
change your own oil,
be sure you use oil that has
the Starburst symbol on the
front of the oil container.
If
you have your oil changed
for you, be sure the oil put
into your engine is
American Petroleum
Institute certified for
gasoline engines.
You should also use the proper viscosity oil
for your
vehicle, as shown in the following chart:
6-14
Page 261 of 404
Downloaded from www.Manualslib.com manuals search engine RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE
VISCOSITY GRADE 011 FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
WOK
FOR THIS
SYMBOL
"F
+ 100-
+ 80 -
+ 60 -
+40-
+ 20 -
0-
\I
SAE SW-M PREFERRED
I SAE I law-30
COLD
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER
GRADE OIL NOT RECOMMENDED
5.7L Engine
As shown in the chart, if you have the 5.7L engine,
SAE 5W-30 is best for your vehicle. However, you can
use SAE 1OW-30 if it's going to be 0°F (-18°C) or
above. These numbers on an oil container show its
viscosity, or thickness.
Do not use other viscosity oils,
such as
SAE 20W-50.
6-15
Page 262 of 404

Downloaded from www.Manualslib.com manuals search engine RECOMMENDED SAE VlSCOSlTT GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE
OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
WOK
FOR MIS
SYMBOL
wi
COLD
WEATHER
DO NOT USE SA€ 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
3800 Engine
As shown in the chart, if you have the 3800 engine, SAE
1OW-30 is best for your vehicle. However, you can use
SAE 5W-30 if it’s going to be colder than 60°F (16°C)
before your next oil change. When it’s very cold, you
should use
SAE 5W-30. These numbers on an oil
container show its viscosity,
or thickness. Do not use
other viscosity oils, such as SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines “Starburst” symbol. Failure to use the
recommended oil can result in engine damage not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20°F (-29”C), consider using either an SAE 5W-30
synthetic oil or an
SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
6-16
Page 373 of 404

Downloaded from www.Manualslib.com manuals search engine Part D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from your
GM dealer.
USAGE
Engine Oil
Engine Coolant
Coolant
Supplement Sealer
FLUIDLUBRICANT
Engine oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst”
symbol
of the proper viscosity. To
determine the preferred viscosity
for your vehicle’s engine,
see
“Engine Oil” in the Index.
50/50 mixture of clean water
(preferably distilled) and use only
GM Goodwrench@ DEX-COOL@
or Havoline@ DEX-COOL@
coolant. See “Engine Coolant” in
the Index.
GM Part No. 3634621 or
equivalent with a complete flush
and refill.
USAGE
Hydraulic Brake
System
Hydraulic Clutch
System
Power Steering
System
Manual
Transmission
Automatic
Transmission
Key Lock
Cylinders
Clutch Linkage
Pivot Points
FLUIDLUBRICANT
Delco Supreme 11 @ Brake Fluid
(GM Part No. 12377967 or
equivalent DOT-3 brake fluid).
Hydraulic Clutch Fluid (GM Part
No. 12345347 or equivalent
DOT-3 brake fluid).
GM Power Steering Fluid
(GM Part No. 1052884
- 1 pint,
1050017
- 1 quart, or equivalent).
DEXRONO-I11 Automatic
Transmission Fluid.
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pur ose lubricant,
Superlube
% (GM Part
No. 12346241
or equivalent).
Engine oil.
7-49