1997 Pontiac Firebird Owner's Manual - Page 260
1997 Pontiac Firebird Manual
Page 260 highlights
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 + 38 . +27 . 7 LOOK FOR THIS SYMBOL As shown in thechart, if you have the 5.7L engine, SAE 5W-30 is best for yourvehicle. However, you can use SAE 1OW-30 if it's going to be 0°F (-18°C) or above. These numbers on an oil containershow its viscosity, or thickness. Do not use other viscosity oils, such as SAE 20W-50. 4-100- +80+60- + 16 +4 +40t 20 - -7 0- - 18 SAE SW-30 PREFERRED \ COLD WEATHER 00 NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENOEO 5 7 Engine .L 6-15
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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
/
4
\
-
“F
-100-
+80-
+60-
+40-
t
20
-
0 -
7
“C
+
38
.
+27
.
+
16
+ 4
- 7
-
18
LOOK
FOR
THIS
SYMBOL
SAE
SW-30
PREFERRED
COLD
WEATHER
00
NOT
USE
SAE
2OW-50
OR
ANY OTHER
GRADE
OIL
NOT
RECOMMENOEO
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