Buick 2003 Century Owner's Manual page 232

What Kind of Engine 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.
If you choose to perform
the engine oil change
1
L .
service yourself, be sure
the oil you use has
the starburst symbol on
the front of the oil
oil changed for you, be
sure the oil put into
your engine is American
centainer. I f you have
p i l r
I
I
Petroleum Institute certified
for gasoline engines.
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
HOT
WEATHER
-
"F
100
t
80
k
60
t
4 0 1
+
20
0
I
t
L
4
7
"C
-
t38
-
t 2 7
-
+
16
- t 4
- - 7
- - 18
LOOK
FOR THIS
SYMBOL
SAE 5W-30
RECOMMENDED
COLD
WEATHER
DO NOT USE SAE IOW-40, SAE 2OW-50 OR ANY OTHER
V!-CCOS!TV GRADE OIL
Me?
R E C O M Y E ~ D
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