Cadillac SRX 2011 Owner's Manual page 351

Extensive use of oils that do not
meet the dexos specification,
however, may result in reduced
performance or engine damage
under certain circumstances.
Maintaining the proper oil level is
very important. However, if you
use a substitute oil for any reason,
we recommend that you perform a
complete oil change back to dexos
as soon as possible to protect the
engine and maintain the engine's
peak performance.
Viscosity Grade
SAE 5W-30 is the best viscosity
grade for the vehicle. Do not
use other viscosity oils such as
SAE 10W 30, 10W 40, or 20W-50.
I n f o r ma t i o n P r o v i d e d b y :
Vehicle Care
Cold Temperature Operation: In
an area of extreme cold, where
the temperature falls below
29°C ( 20°F), an SAE 0W-30
oil should be used. An oil of this
viscosity grade will provide easier
cold starting for the engine at
extremely low temperatures.
When selecting an oil of the
appropriate viscosity grade, be
sure to always select an oil that
meets the required specification,
dexos. See Specification earlier
in this section for more information.
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