RAM 1500 2WD 2021 Owner's Manual page 151

Driving Condition
Stop and Go
Stop and Go
Highway Speeds
City Traffic
Highway Speeds
Uphill Grade
NOTE:
Under certain conditions the engine fan will run
after the engine is turned off. These conditions
are under high load and high temperature
conditions.
Do Not Operate The Engine With Low Oil
Pressure
If the low oil pressure warning light turns on
while driving, stop the vehicle and shut down
the engine as soon as possible. A chime will
sound when the light turns on.
Load Turbocharger Temperature
Empty
Medium
Medium
Maximum GCWR
Maximum GCWR
Maximum GCWR
NOTE:
Do not operate the vehicle until the cause is
corrected. This light does not show how much
oil is in the engine. The engine oil level must be
checked under the hood.
CAUTION!
If oil pressure falls to less than normal
readings, shut the engine off immediately.
Failure to do so could result in immediate and
severe engine damage.
STARTING AND OPERATING
Idle Time (min.) Before Engine
Cool
Warm
Hot
Do Not Operate The Engine With Failed
Parts
All engine failures give some warning before the
parts fail. Some important observations are:
Engine misfiring or vibrating severely

Sudden loss of power

Unusual engine noises

Fuel, oil or coolant leaks

Sudden change, outside the normal operating

range, in the engine operating temperature
Excessive smoke

Oil pressure drop

149
Shutdown
None
0.5
1.0
1.5
2.0
4
2.5