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TECHNICAL SPECIFICATIONS 401
FUEL REQUIREMENTS – DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier in your vehicle. Federal law requires that
you must fuel this vehicle with Ultra Low Sulfur
Highway Diesel fuel (15 ppm Sulfur maximum) and
prohibits the use of Low Sulfur Highway Diesel fuel
(500 ppm Sulfur maximum) to avoid damage to the
emissions control system.
For most year-round service, Number 2 diesel fuel
meeting ASTM (formerly known as the American
Society for Testing and Materials) specification
D-975 Grade S15 will provide good performance. If
the vehicle is exposed to extreme cold (below 20°F
or -7°C), or is required to operate at
colder-than-normal conditions for prolonged
periods, use climatized Number 2 diesel fuel or
dilute the Number 2 diesel fuel with 50% Number
1 diesel fuel. This will provide better protection
from fuel gelling or wax-plugging of the fuel filters.
Diesel fuel is seldom completely free of water. To
prevent fuel system trouble, drain the
accumulated water from the fuel/water separator
using the fuel/water separator drain provided on
both fuel filters. If you buy good quality fuel and
follow the cold weather advice above, fuel
conditioners should not be required in your vehicle.
If available in your area, a high cetane “premium”
diesel fuel may offer improved cold-starting and
warm-up performance.
FUEL SPECIFICATIONS
The Cummins® Turbo Diesel engine has been
developed to take advantage of the high energy
content and generally lower cost Number 2 Ultra
Low Sulfur diesel fuel or Number 2 Ultra Low Sulfur
climatized diesel fuels. Experience has shown that
it also operates on Number 1 Ultra Low Sulfur
diesel fuels or other fuels within specification.
NOTE:
If you accidentally fill the fuel tank with gasoline
on your diesel vehicle, Do not start the vehicle.
If you restart your vehicle you risk damaging the
engine and fuel system. Please call an autho-
rized dealer for service.
A maximum blend of 20% biodiesel meeting
ASTM specification D-7467 may be used with
your Cummins® diesel engine. (Models config-
ured with B20 Capability.)
In addition, commercially available fuel addi-
tives are not necessary for the proper operation
of your Cummins® diesel engine. However, if
seasonably adjusted fuel is not available and
you are operating below 20°F (-6°C), Mopar®
Premium Diesel Fuel Treatment (or equivalent)
may be beneficial to avoid fuel gelling.
Number 1 Ultra Low Sulfur diesel fuel should
only be used where extended arctic conditions
(0°F or -18°C) exist.
BIODIESEL FUEL REQUIREMENTS
Chassis Cab Models Ordered With
B20 Option
Your vehicle has been validated and approved for
the use of biodiesel in blends up to 20% (B20)
provided that you comply with the requirements
outlined below. It is important that you understand
and comply with these requirements. Failure to
WARNING!
Do not use alcohol or gasoline as a fuel blending
agent. They can be unstable under certain
conditions and hazardous or explosive when
mixed with diesel fuel.
CAUTION!
If the Water in Fuel Indicator Light remains on,
DO NOT START engine before you drain the water
from the fuel filter(s) to avoid engine damage
Ú page 347.
9
22_DPF_OM_EN_USC_t.book Page 401
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