Engine Warm-Up; Engine Idling; Stopping The Engine - Dodge RAM 2017 Owner's Manual

38 STARTING AND OPERATING
below 0°F (-17°C) the four flaps need to be closed. A
suitable cold weather cover is available from your MOPAR
dealer.

Engine Warm-Up

Avoid full throttle operation when the engine is cold. When
starting a cold engine, bring the engine up to operating
speed slowly to allow the oil pressure to stabilize as the
engine warms up.
If temperatures are below 32°F (0°C), operate the engine at
moderate speeds for five minutes before full loads are
applied.

Engine Idling

Avoid prolonged idling, long periods of idling may be
harmful to your engine because combustion chamber tem-
peratures can drop so low that the fuel may not burn
Driving Condition
Stop and Go
Stop and Go
Highway Speeds
City Traffic
Load
Empty
Medium
Medium
Maximum GCWR
completely. Incomplete combustion allows carbon and
varnish to form on piston rings, cylinder head valves, and
injector nozzles. Also, the unburned fuel can enter the
crankcase, diluting the oil and causing rapid wear to the
engine.

Stopping The Engine

After full load operation, idle the engine for a few minutes
before shutting it down. This idle period will allow the
lubricating oil and coolant to carry excess heat away from
the turbocharger.
NOTE: Refer to the following chart for proper engine
shutdown.
Turbocharger Temperature
Cool
Warm
Idle Time (min.) Before
Engine Shutdown
None
0.5
1.0
1.5