Black plate (4,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
1-4
In Brief
Special DPF Driver Messages
If the vehicle is used for numerous
short trips or extended slow-speed
operation, the engine computer may
not be able to adequately heat up
the exhaust system to clean the
DPF effectively. The engine
computer has been designed to
continuously monitor the condition
of the DPF. When the engine
computer detects that the DPF is
nearly full of particulates and that
the vehicle is not being operated in
a manner that would allow effective
automatic DPF cleaning, the Driver
Information Center will display the
message CLEANING EXHAUST
FILTER KEEP DRIVING UNTIL
MESSAGE IS CLEARED.
If the vehicle continues to be
driven in a manner that prevents
effective DPF cleaning, the DPF will
become plugged with particulates.
If this occurs, the engine computer
will turn on the Service Engine Soon
Light in the instrument cluster and
the DIC will display the message
REDUCED ENGINE POWER.
See
Diesel Particulate Filter
(Exhaust Filter) on page 9
‑
10
and
Engine Power Messages on
page 5
‑
11
.
Fuel
Use Ultra-Low Sulfur Diesel
Fuel (ULSD)
Use Ultra-Low Sulfur Diesel Fuel
(ULSD) only. The emission control
hardware used on the vehicle may
be damaged by using fuel with high
sulfur levels. Use only fuel that is
dispensed from pumps bearing the
ULSD label.
Do Not Use Low Sulfur Diesel
Fuel (LSD)
Do not use fuel that is dispensed
from pumps bearing the LSD label.
Do Not Use Non-Highway Fuel
Fuel labeled as off road or
non-highway is typically very
high in sulfur content and will
damage the emission control
system. Non-Highway fuel is not
intended for use in on-highway
vehicles and does not have the
fuel properties needed by the
DPF-equipped Duramax Diesel.
In addition:
.
Use the correct engine oil.
.
Do not add gasoline to
diesel fuel.
.
Do not modify the induction or
exhaust systems.
See
Fuel for Diesel Engines on
page 9
‑
17
and
Engine Oil on
page 10
‑
7
.
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