Black plate (18,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
9-18
Driving and Operating
What Fuel to Use in
The U.S.
Notice:
Use of diesel fuel other
than Ultra Low Sulfur Diesel
(15 ppm sulfur maximum) will
cause permanent damage to the
exhaust after
‐
treatment system.
This damage would not be
covered by the vehicle warranty.
The emission control system
requires the use of diesel fuel with
ultra low sulfur content (15 ppm or
0.0015% by weight, maximum).
Look for the following label on the
dispenser to ensure you are filling
with Ultra Low Sulfur Diesel fuel.
At a minimum, the diesel fuel you
use should meet the latest version
of ASTM specification D 975
(Grades No. 2
‐
D or No. 1
‐
D S15,
commonly known as Ultra Low
Sulfur Diesel) in the United States.
If there are questions about the fuel
you are using, contact your fuel
supplier.
Diesel Fuel Grades
For best results use No. 2
‐
D diesel
fuel year-round (above and below
freezing conditions) as oil
companies blend No. 2
‐
D fuel to
address climate differences. No. 1
‐
D
diesel fuel can be used in very cold
temperatures (when it stays below
−
18°C or 0°F); however, it will
produce a power and fuel economy
loss. Avoid the use of No. 1
‐
D diesel
fuel in warm or hot climates. It can
result in stalling, poor starting when
the engine is hot, and could damage
the fuel injection system.
Premium Diesel Fuel
Diesel fuel corresponding to the
Engine Manufacturers Association
(EMA) Recommended Guideline on
Premium Diesel Fuel (FQP
‐
1A)
could provide better starting,
less noise, and better vehicle
performance, but its use is not
required.
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