Engine Oil Additives; When To Change Engine Oil - Oldsmobile 2001 Silhouette Owner's Manual

As in the chart shown previously, SAE 5W
your vehicle. However, you can use SAE 10W
_ _
-
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
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.
R
GM Goodwrench oil meets all the requirements for
your vehicle.
-
30 is best for If you are in an area where the temperature falls below
_
- -
30 if it's 20 F (
synthetic oil or an SAE 0W
easier cold starting and better protection for your engine
-
50. at extremely low temperatures.

Engine Oil Additives

Don't add anything to your oil. The recommended oils
with the starburst symbol are all you will need for good
performance and engine protection.

When to Change Engine Oil

(GM Oil Life System
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is based
on engine revolutions and engine temperature, and not
on mileage. Based on driving conditions, the mileage
at which an oil change will be indicated can vary
considerably. For the oil life system to work properly,
you must reset the system every time the oil is changed.
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-
29 C), consider using either an SAE 5W
-
30 oil. Both will provide
t
)
-
30
6-15