Engine Starting
For cold-weather starting, refer to "Cold Weather
Starting" later in this chapter.
This engine chapter is to serve as a guide for best
practices only. Each make and model engine may
have operating characteristics that are unique to that
particular engine, and will be documented in the en-
gine manufacturer’s literature. Always refer to specific
instructions and recommendations from the engine
manufacturer.
NOTE: Before starting the engine, read
for detailed information on how to read the
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B
1/2
ULTRA LOW SULFUR
DIESEL FUEL ONLY
E
F
DEF
F
E
1/2
ULTRA LOW SULFUR
DIESEL FUEL ONLY
E
F
DEF
F
E
1/2
ULTRA LOW SULFUR
DIESEL FUEL ONLY
E
F
DEF
F
E
A
C
1
2
A. Green bars—DEF level indicators
B. One bar illuminated amber—DEF very low, refill DEF
C. One bar flashing red—DEF empty, refill DEF
1.
Low Fuel Warning Lamp
2.
DEF Warning Lamp
Fig. 7.10, Fuel/DEF Gauge
A
B
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A. DEF Warning Lamp (illuminated)
B. DEF Lightbar (one bar amber)
Fig. 7.11, DEF Level Low Initial Warning
A
B
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NOTE: MIL illuminates. CHECK engine lamp illuminates
if Cummins ISB or ISC/L engine. Engine power is lim-
ited.
A. DEF Warning Lamp (flashing)
B. DEF Lightbar (one bar flashing red)
Fig. 7.12, DEF Empty Warning
A
B
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NOTE: STOP engine light and MIL illuminate, engine
power is limited, speed limit of 5 mph (8 km/h)
A. DEF Warning Lamp (flashing)
B. DEF Lightbar (one bar flashing red)
Fig. 7.13, DEF Empty and Ignored Warning
Engines
7.7
