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Chevrolet Corvette Owner Manual - 2011
10-20 Vehicle Care
8. Start the engine and let it run
at idle for at least 15 seconds.
This will circulate the fresh
engine oil through the lubrication
system.
9. Shut off the engine and check
the oil level as described under
“Checking Engine Oil (ZO6,
ZR1, and Grand Sport).”
Selecting the Right Engine Oil
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade:
Specification
Use and ask for engine oils with
the dexos™ certification mark.
Oils meeting the requirements
of your vehicle should have the
dexos™ certification mark on the
container. This certification mark
indicates that the oil has been
approved to the dexos™
specification.
Your vehicle was filled at the factory
with dexos™ approved engine oil.
Notice: Use only engine oil
that is approved to the dexos™
specification or an equivalent
engine oil of the appropriate
viscosity grade. Engine oils
approved to the dexos™
specification will show the
dexos™ symbol on the container.
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered
by the vehicle warranty. If you
are unsure whether your oil
is approved to the dexos™
specification, ask your service
provider.
It is recommended to use
Mobil 1
®
engine oils that meet
the requirements of the dexos™
specification.
Use of Substitute Engine Oils if
dexos™ is unavailable: In the
event that dexos™ approved engine
oil is not available at an oil change
or for maintaining proper oil level,
you may use substitute engine oil
displaying the API Starburst symbol
and of SAE 5W-30 viscosity grade.
Use of oils that do not meet the
dexos™ specification, however,
may result in reduced performance
under certain circumstances.
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.