oil viscosity Oldsmobile Achieva 1995 Owner's Manuals

NOTICE:
If you keep driving your vehicle with this light
on, after a while the emission controls won’t
work as well, your fuel economy won’t be as good
and your engine may not run as smoothly. This
could lead to costly repairs not covered by your
warranty.
Check Gages Light (Gage Cluster)
9 ANTI-
CHECK
Q
OAOES
UI
E 4
This light will come
on briefly when you
are starting the engine.
If it stays on, or if
it
comes on and stays on
while you are driving,
check your various
gages to see if they are
in the warning zones.
Oil Pressure Gage (Gage Cluster)
UP
SHIFT
CHECK
OIL
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. Oil pressure
may vary with engine speed, outside temperature and oil
viscosity, but readings above the red warning zone
indicate the normal operating range.
A reading in the red zone may be caused by a
dangerously low oil level or other problem causing low
oil pressure. Have your vehicle serviced immediately.
2-66

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 put
explains what kind
of oil to use. For crankcase capacity,
see “Capacities and Specifications”
in the Index.
I NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the upper
mark that shows the proper operating range,
your engine could be damaged.
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.
What Kind of Oil to Use
Oils of the proper quality for your vehicle can be
identified
by looking for the “Starburst” symbol. The
“Starburst” symbol indicates that the
oil has been
certified by the American Petroleum Institute
(API), and
is preferred for use
in your gasoline engine.
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
certificd
for gasoline engines.
You should also use the proper viscosity oil
for your
vehicle,
as shown in the following chart:
6-13

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE
OIL FOR THE EXPE( 1 TEMPERATURE RANGE.
HOT
WEATHER
,-
I I
+100-4+38
i
I +6O-A+16
+40--+4
+20--’-7
0---I8
I ~
,/
COLD
WEATHER
WOK
FOR MIS
SYMBOL
I
‘-30 REO
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 (- 1 8 “C) or above. These numbers on an oil
container
show its viscosity, or thickness. Do not use
other viscosity oils, such as
SAE 20W-SO.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure
to use the proper oil
can result in engine damage not covered by your
warranty.
I I
GM Goodwrench@ oil (in Canada, GM Engine Oil)
meets all the requirements
for your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your Oldsmobile retailer
is ready
to advise if you think something should be
added.
6-14

Part D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from your
GM retailer.
USAGE
Engine Oil
Engine Coolanl
FLUIDLLUBRICANT
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 water (preferably
distilled) and good quality
ethylene glycol base antifreeze
(GM Part
No. 1052753 or
equivalent) conforming to
GM
Specification 1825M or approved
recycled coolant conforming to
GM Specification
1825M.
USAGE
Coolant
Supplement
Hydraulic Brake System
Hydraulic Clutch
System
Power Steering
System
Manual
Transaxle
Automatic
Transaxle
Key Lock
Cylinders

FLUIDLUBRICANT
GM Part No. 3634621 or
equivalent.
Delco Supreme
11 @ Brake Fluid
(GM Part No. 1052535 or
equivalent
DOT-3 brake fluid).
Hydraulic Clutch Fluid
(GM Part
No. 12345347 or equivalent).
GM Hydraulic Power Steering
Fluid (GM Part
No. 1052884 or
equivalent).
Synchromesh Transmission Fluid
(GM Part No. 12345349 or
equivalent).
DEXRON@-III Automatic
Transmission Fluid.
Lubricate with Multi-Purpose
Lubricant
(GM Part
No. 12345 120) or synthetic
SAE 5W-30 engine oil.
7-41