oil viscosity CHEVROLET ASTRO 1997 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine If you experience one or more of these conditions,
change the
fuel brand you use. It will require at least one
full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn
off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools
to fix any mechanical or electrical
problems that may have developed.
Oil Pressure Gage
The oil pressure gage 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.
A reading in the low pressure zone may be caused by a
dangerously low oil level or other problems causing low
oil pressure.
I
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.
1
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
2-67

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 at least one quart
of 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 (APT).
Do not use any oil which
does
not carry this Starburst symbol.
~ NOTICE:
~~ ~~~ ~~~~~~~
~
Don’t add too much oil. If your engine has
so much oil that the oil level gets above the
cross-hatched area that shows the proper
operating range,
your engine could be damaged.
Be sure to 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:
6-12

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 OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
“F
c 100 -
+80.
+60.
+ 40.
+20.
0-
I
7
“C
t 38
t 21
t 16
tb
-7
- 18
LOOK
FOR THIS
SYMBOL
COLD
WEATHM
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
As shown in the chart, 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.
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.
6-13

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.
I USAGE
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 GM
Goodwrench@ DEX-COOL
or
Havoline@ DEX-COOL TM
(silicate-free) antifreeze. See
“Engine Coolant’’ in the Index.
GM Part No. 3634621 or
equivalent with a complete flush
and refill.
-_
USAGE
Delco Supreme 11 @ Brake Fluid Hydraulic Brake
FLUIDLUBRICANT
(GM Part No. 12377967 or System equivalent DOT-3 brake fluid).
Parking Brake Chassis lubricant (GM
Part
Cable Guides No. 1052497 or equivalent) or
lubricant meeting requirements
of NLGI
# 2, Category LB
or GC-LB.
Power Steering
GM Power Steering Fluid
System (GM
Part No. 1052884 - 1 pint,
Automatic DEXRON@-I11 Automatic
Transmission Transmission Fluid.
Key
Lock Multi-Purpose lubricant, Superlube@
Cylinders
(GM Part No. 12346241
or equivalent).
1050017
- 1 quart, or equivalent).
Chassis Chassis lubricant
(GM Part
Lubrication No. 1052497 or equivalent)
or
lubricant meeting requirements
of NLGI # 2, Category LB
or GC-LB.
7-49