FCA US RAM 2500 2019, Manual

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ENGINE BREAK-IN RECOMMENDATIONS — 6.7L
DIESEL
The Cummins turbocharged diesel engine does not require
a break-in period due to its construction. Normal operation
is allowed, providing the following recommendations are
followed:
•
Warm up the engine before placing it under load.
•
Do not operate the engine at idle for prolonged periods.
•
Use the appropriate transmission gear to prevent engine
lugging.
•
Observe vehicle oil pressure and temperature indicators.
•
Check the coolant and oil levels frequently.
•
Vary throttle position at highway speeds when carrying
or towing significant weight.
NOTE: Light duty operation such as light trailer towing or
no load operation will extend the time before the engine is
at full efficiency. Reduced fuel economy and power may be
seen at this time.
For additional vehicle break-in requirements, refer to
“Trailer Towing” in “Starting And Operating” of the Own-
ers Manual.
Because of the construction of the Cummins turbocharged
diesel engine, engine run-in is enhanced by loaded oper-
ating conditions which allow the engine parts to achieve
final finish and fit during the first 6,000 miles (10 000 km).
DIESEL EXHAUST BRAKE (ENGINE BRAKING)
The purpose of the exhaust brake (engine braking) feature
is to supply negative (braking) torque from the engine.
Typically, the engine braking is used for, but not limited to,
vehicle towing applications where vehicle braking can be
achieved by the internal engine power, thereby sparing the
mechanical brakes of the vehicle.
Benefits of the exhaust brake are:
•
Vehicle driving control.
•
Reduced brake fade.
•
Longer brake life.
•
Faster cab warm-up.
The exhaust brake feature will only function when the
driver toggles it on by pushing the exhaust brake button
until the
⬙
Exhaust Brake Indicator
⬙
is illuminated. Normal
(Full Strength) exhaust brake mode is indicated by a yellow
⬙
Exhaust Brake Indicator
⬙
.
4
STARTING AND OPERATING 49