Chevrolet 2008 Silverado 1500 Pickup, Owner'S Manual

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What Kind of Engine Oil to Use
Look for three things:
•
GM6094M
Your vehicle’s engine requires oil meeting
GM Standard GM6094M. Look for and use only
an oil that meets GM Standard GM6094M.
•
SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is best
for your vehicle.
These numbers on an oil container show its
viscosity, or thickness. Do not use other viscosity
oils such as SAE 20W-50.
•
Oils meeting these
requirements should
have the starburst
symbol on the container.
This symbol indicates
that the oil has
been certified by the
American Petroleum
Institute (API).
Look for this information on the oil container, and use
only those oils that are identified as meeting GM
Standard GM6094M and have the starburst symbol on
the front of the oil container.
Notice: Use only engine oil identified as meeting
GM Standard GM6094M and showing 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.
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