operators_manual

bearings and gives ample time to
allow the oil pressure to stabilize.
CAUTION
The use of starting aids, such as
ether, may result in damage to
the engine and aftertreatment
system.
3. For coolant temperatures below
150°F (70°C), use a low gear and
drive at moderate engine speed until
the engine coolant has reached
operating temperature. Do not let the
engine idle longer than necessary. If
the vehicle cannot be driven, an
elivated idle speed may be used
instead to warm the engine.
CAUTION
Do not operate the engine at low
idle for long periods of time when
the coolant temperature is below
the normal operating range. This
could result in the following:
• Fuel dilution of the lubri-
cating oil
• Carbon buildup in the
combustion chamber
• Sticking of the valves in
the cylinder head
• Reduced performance
• Damage to aftertreatment
components
Starting Procedure After Extended
Shutdown or Oil Change
Guideline on starting the engine after
prolonged shutdown or oil change.
After extended shutdown or an oil change
follow the Normal Starting Procedure on
page 23 .
The engine will run at idle only until the
minimum oil pressure is detected by the
ECM. It can take more cranking time to
start the engine after an extended shut
down or oil change.
Operating the Engine
After the engine starts:
Monitor the oil pressure and coolant
temperature gauges frequently. Refer to
Engine Oil Capacities and Pressures on
page 46 and
Engine Coolant
Specifications on page 54 for
recommended operating pressures and
temperatures. Shut off the engine if any
pressure or temperature does NOT meet
the specifications.
Continuous operation with engine coolant
temperature above or below the engine
coolant temperature specifications listed in
“ Engine Coolant Specifications on page
54 ” can damage the engine.
ENGINE OPERATION - Operating Instructions
24 Y53-1183-1E1 (04/16/18)
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