Black plate (9,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
Vehicle Care
10-9
starting. These numbers on the
oil container show its viscosity,
or thickness. Do not use
other viscosity oils such as
SAE 10W
‐
30, SAE 10W-40,
or SAE 20W-50.
.
American Petroleum Institute
(API) symbol
This doughnut-shaped logo
(symbol) is used on most oil
containers to help you select the
correct oil. It means that the oil has
been certified by the American
Petroleum Institute.
Look for this on the oil container,
and use only those oils that display
this logo.
Notice:
Use only engine oils that
have the designation CJ-4 for the
diesel engine. Failure to use the
recommended oil can damage the
DPF and result in engine damage
not covered by the vehicle
warranty.
Engine Oil Additives/Engine
Oil Flushes
Do not add anything to the oil.
The recommended oils with the
API service symbol are all that is
needed for good performance and
engine protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty.
What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
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