Ram Trucks 2012 Chassis Cab - User Guide - Manual (Page 66)

ENGINE BREAK-IN RECOMMENDATIONS
• 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.
• Because of the construction of the Cummins ® turbocharged diesel engine,
engine run-in is enhanced by loaded operating conditions which allow the
engine parts to achieve final finish and fit during the first 6,000 miles
(10 000 km).
DIESEL ENGINE STARTING PROCEDURES
Engine Block Heater
• For ambient temperatures below 0°F (-18°C), engine block heater usage is
recommended.
• For ambient temperatures below –20°F (-29°C), engine block heater usage is
required.
• The engine block heater cord is routed under the hood to the right side and
can be located just behind the grille near the headlamp.
• Connect the heater cord to a ground-fault interrupter protected 110–115 volt
AC electrical outlet with a grounded, three-wire extension cord.
NOTE: The block heater will require 110 volts AC and 6.5 amps to activate the
heater element.
• The block heater must be plugged in at least one hour to have an adequate
warming effect on the coolant.
Water In Fuel Message
• If a Water In Fuel message or indicator appears in the cluster and a
chime sounds five times, the fuel/water separator will need to be drained
immediately to prevent engine damage.
• Refer to Maintaining Your Vehicle in this guide for draining instructions or see
your dealer.
DIESEL
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