Geo Prizm 1997 Owner's Manual page 234

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I
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
I
FOR
BEST FUEL ECONOMY AWD COW STARTING, SELECT THE
LOWEST
SAE
VISCOSITY GRADE O I L
FOR
THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
+loo-
-
+30
+Ea-
-
+27
+bo-
-
+16
+40-
- + 4
t 2 0 - - - 7
0 - - - 1 8
\
/
COLD
WEATHER
L
LOOK
FOR THIS
SYMBOL
DO NOT USE SAE 2oW-50 OR A N Y OTHER
GRADE OIL NOT RECOMMENDED
As shown in the chart, if you have the 1.6L (Code 6 )
engine, SAE 1OW-30 is best for your vehicle. However,
you can use
S A E
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
S A E
5W-30. These numbers
on an oil container show its viscosity, or thickness.
Do
not use other viscosity oils, such as
S A E
20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
44Starburst9' 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.

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