2020 Ram 2500 oil viscosity

STARTING AND OPERATING223
NOTE:
Use of Climatized Ultra Low Sulfur Diesel Fuel
or Number 1 Ultra Low Sulfur Diesel Fuel
results in a noticeable decrease in fuel
economy.
Climatized Ultra Low Sulfur Diesel Fuel is a
blend of Number 2 Ultra Low Sulfur and
Number 1 Ultra Low Sulfur Diesel Fuels
which reduces the temperature at which wax
crystals form in fuel.
The fuel grade should be clearly marked on
the pump at the fuel station.
The engine requires the use of “Ultra Low
Sulfur Diesel Fuel”. Use of incorrect fuel
could result in engine and exhaust system
damage. Refer to “Fuel Requirements” in
“Technical Specifications” for further infor -
mation.
If climatized or diesel Number 1 ULSD fuel is
not available, and you are operating below
(20°F/-6°C), in sustained arctic conditions,
Mopar Premium Diesel Fuel Treatment (or
equivalent) is recommended to avoid gelling
(see Fuel Operating Range Chart).

Under some circumstances increased
engine noise may be audible in the seconds
following a cold start. This is most likely to
occur when using fuel that isn't blended for
the ambient temperature present. This may
occur on an unseasonably cold day or when
a truck is fueled in a warmer climate and
driven to a colder climate. The noise can
typically be prevented by using Mopar
Premium Diesel Fuel Treatment as recom-
mended (see Fuel Operating Range Chart).

Engine Oil Usage
Refer to “Dealer Service” in “Servicing And
Maintenance” for the correct engine oil
viscosity.
Winter Front Cover Usage
A Winter front or cold weather cover is to be
used in ambient temperatures below 32°F
(0°C), especially during extended idle condi -
tions. This cover is equipped with four flaps for
managing total grille opening in varying ambient
temperatures. If a Winter front or cold weather
cover is to be used the flaps should be left in the
full open position to allow air flow to the charge
air cooler and automatic transmission oil
cooler. When ambient temperatures drop below
0°F (-17°C) the four flaps need to be closed. A suitable cold weather cover is available from
your Mopar dealer.
Battery Blanket Usage
A battery loses 60% of its cranking power as the
battery temperature decreases to 0°F (-18°C).
For the same decrease in temperature, the
engine requires twice as much power to crank
at the same RPM. The use of 120 VAC powered
battery blankets will greatly increase starting
capability at low temperatures. Suitable battery
blankets are available from your authorized
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.
NOTE:
High-speed, no-load running of a cold engine
can result in excessive white smoke and poor
engine performance. No-load engine speeds
should be kept under 1,000 RPM during the
warm-up period, especially in cold ambient
temperature conditions.
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228STARTING AND OPERATING
The block heater must be plugged in at least
one hour to have an adequate warming effect
on the coolant.
NOTE:
The block heater will require 110 Volts AC and
6.5 Amps to activate the heater element.
Block Heater Usage
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.
ENGINE BREAK-IN RECOMMENDATIONS —
GAS ENGINE
A long break-in period is not required for the
engine and drivetrain (transmission and axle) in
your vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
While cruising, brief full-throttle acceleration
within the limits of local traffic laws contributes
to a good break-in. Wide-open throttle accelera-
tion in low gear can be detrimental and should
be avoided.
The engine oil installed in the engine at the
factory is a high-quality energy conserving type
lubricant. Oil changes should be consistent with
anticipated climate conditions under which
vehicle operations will occur. For the recom
-
mended viscosity and quality grades, refer to
“Fluids And Lubricants” in “Technical Specifica-
tions”.
NOTE:
A new engine may consume some oil during its
first few thousand miles (kilometers) of opera -
tion. This should be considered a normal part of
the break-in and not interpreted as a problem.
Please check your oil level with the engine oil indicator often during the break in period. Add
oil as required.
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE
The Cummins® Turbo 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 tempera
-
ture indicators.
Check the coolant and oil levels frequently.
Vary throttle position at highway speeds
when carrying or towing significant weight.
WARNING!
Remember to disconnect the cord before
driving. Damage to the 110–115 Volt
electrical cord could cause electrocution.
CAUTION!
Never use Non-Detergent Oil or Straight
Mineral Oil in the engine or damage may
result.

20_DJD2_OM_EN_USC_t.book Page 228

SERVICING AND MAINTENANCE397
American Petroleum Institute (API) Engine Oil
Identification Symbol — Diesel Engine
This symbol means that the oil has
been certified by the American Petro -
leum Institute (API). The manufac -
turer only recommends API Certified
engine oils.
Oils with a high ash content may produce
damaging deposits on cylinder head valves
and/or aftertreatment system damage. A
maximum sulfated ash content of 1.00 mass %
is recommended for all oil used in the engine.
The same oil change interval is to be followed
for synthetic oil as for petroleum based oil. Also,
synthetic oil must meet the same performance
specifications as petroleum oil.
Engine Oil Viscosity — Gas Engine
Use Mopar SAE 0W-40 engine oil approved to
FCA Material Standard MS-12633 such as
Pennzoil Ultra equivalent is recommended for
all operating temperatures.
The engine oil filler cap also shows the recom -
mended engine oil viscosity for your engine. For
information on engine oil filler cap location,
refer to the “Engine Compartment” illustration
in this section.
Lubricants which do not have both the engine
oil certification mark and the correct SAE
viscosity grade number should not be used.
Engine Oil Viscosity — Diesel Engine
In ambient temperatures above 0°F (-18°C),
we recommend you use SAE 10W-30 engine oil
such as Mopar, Shell Rotella and Shell Rimula
that meets FCA Material Standard MS-10902
and the API CK-4 engine oil category is required.
Products meeting Cummins CES 20081 may also be used. The identification of these engine
oils is typically located on the back of the oil
container.
In ambient temperatures below 0°F (-18°C), we
recommend you use SAE 5W-40
synthetic
engine oil such as Mopar, Shell Rotella and
Shell Rimula that meets FCA Material Standard
MS-10902 and the API CK-4 engine oil category
is required.
Engine oil not designated by the FCA or
Cummins Material Standards and API CK-4
should not be used, as engine and exhaust
system durability may be compromised. The
CAUTION!
Do not use chemical flushes in your engine oil
as the chemicals can damage your engine.
Such damage is not covered by the New
Vehicle Limited Warranty.
CAUTION!
Do not use chemical flushes in your engine oil
as the chemicals can damage your engine.
Such damage is not covered by the New
Vehicle Limited Warranty.
CAUTION!
Failure to use SAE 5W-40 synthetic engine oil
in ambient temperatures below 0°F (-18°C)
could result in severe engine damage.
7

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398SERVICING AND MAINTENANCE
engine oil filler cap also shows the recom -
mended engine oil viscosity for your engine. For
information on engine oil filler cap location,
refer to “Engine Compartment” in “Servicing
And Maintenance” for further information.
Synthetic Engine Oils
You may use synthetic engine oils provided the
recommended oil quality requirements are met,
and the recommended maintenance intervals
for oil and filter changes are followed.
Synthetic engine oils which do not have both the
engine oil certification mark and the correct SAE
viscosity grade number should not be used.
Materials Added To Engine Oil
The manufacturer strongly recommends
against the addition of any additives (other than
leak detection dyes) to the engine oil. Engine oil
is an engineered product and its performance
may be impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used
engine oil and oil filters from your vehicle. Used
oil and oil filters, indiscriminately discarded, can
present a problem to the environment. Contact
an authorized dealer, service station or govern -
mental agency for advice on how and where used oil and oil filters can be safely discarded in
your area.
Engine Oil Filter
The engine oil filter should be replaced with a
new filter at every engine oil change.
Engine Oil Filter Selection
This manufacturer's engines have a full-flow
type disposable oil filter. Use a filter of this type
for replacement. The quality of replacement
filters varies considerably. Only high quality
filters should be used to ensure most efficient
service. Mopar engine oil filters are high quality
oil filters and are recommended.
Engine Air Cleaner Filter
Refer to the “Maintenance Plan” in this section
for the proper maintenance intervals.
NOTE:
Be sure to follow the “Severe Duty Conditions”
maintenance interval if applicable.
Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner
filters varies considerably. Only high quality
filters should be used to ensure most efficient
service. Mopar engine air cleaner filters are a
high quality filter and are recommended.
Engine Air Cleaner Filter Inspection And
Replacement — Gas Engine
Inspect engine air cleaner filter for dirt and or
debris, if you find evidence of either dirt or
debris you should change your air cleaner filter.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in
the case of engine backfire. Do not remove
the air induction system (air cleaner, hoses,
etc.) unless such removal is necessary for
repair or maintenance. Make sure that no
one is near the engine compartment before
starting the vehicle with the air induction
system (air cleaner, hoses, etc.) removed.
Failure to do so can result in serious personal
injury.

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542
Differential, Limited Slip
................................ 264
Disabled Vehicle Towing................................ 369
Disposal Antifreeze (Engine Coolant)
....................... 414
Do Not Disturb............................................... 532
Door Ajar........................................................ 133
Door Ajar Light............................................... 133Door LocksAutomatic
.................................................... 31
Doors............................................................... 27Draining Fuel/Water Separator Filter............ 403
Driver’s Seat Back Tilt..................................... 32
DrivingOff-Pavement
............................................ 255
Off-Road.................................................... 255Through Flowing, Rising, Or Shallow Standing Water
..................................... 335
Dual Rear Wheels................................ 437, 444
E
Electric Brake Control System
....................... 145
Anti-Lock Brake System............................. 144
Electronic Roll Mitigation................. 149, 153
Electrical Power Outlets................................... 88Electronic Range Select (ERS)............. 236, 241
Electronic Stability Control (ESC)...................146
Electronic Throttle Control Warning Light...... 132
Electronically Shifted Transfer Case.............. 244
Emergency Braking........................................ 229
Emergency, In Case OfFreeing Vehicle When Stuck
..................... 367
Hazard Warning Flasher........................... 338
Jump Starting........................................... 362
Emission Control System Maintenance........ 142
Engine......................................... 391, 392, 393
Air Cleaner................................................ 398Block Heater.................................... 218, 227
Break-In Recommendations..................... 228
Compartment.................................. 392, 393Compartment Identification...................... 391
Coolant (Antifreeze)......................... 452, 454
Exhaust Gas Caution....................... 208, 448
Fails To Start............................................ 214
Flooded, Starting...................................... 214Fuel Requirements.......................... 446, 451
Identifcation.................................... 392, 393
Idling........................................................ 224
Jump Starting........................................... 362Oil..................................396, 451, 452, 454
Oil Filler Cap.................................... 391, 397
Oil Filter.................................................... 398
Oil Reset................................................... 119
Oil Selection.................................... 396, 451
Oil Synthetic............................................. 398
Overheating.............................................. 367
Runaway................................................... 312
Starting..................................................... 212
Engine Oil Viscosity....................................... 397
Enhanced Accident Response
Feature
................................................ 189, 371
Entry System, Illuminated................................55
Ethanol.......................................................... 446
Exhaust Brake............................................... 230
Exhaust Gas Cautions.......................... 208, 448
Exhaust System..........................208, 410, 419Exterior Lighting...............................................49
Exterior Lights........................................ 49, 210
F
FiltersAir Cleaner
................................................ 398
Air Conditioning................................. 70, 401
Engine Fuel............................................... 403
Engine Oil...............................398, 452, 454
Engine Oil Disposal................................... 398
FlashersTurn Signals
.............................. 52, 140, 210
Flash-To-Pass...................................................51
Flat Tire Stowage.......................................... 350
Fluid Capacities............................................ 451
Fluid Leaks.................................................... 210
Fluid Level ChecksBrake........................................................ 415
Fluid, Brake................................................... 454
Fluids And Lubricants........................... 452, 454
Fog Lights.............................................. 52, 376
Fold Flat Load Floor.........................................86
Fold-Flat Seats.................................................32

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545
Manual Park Release
............................................. 366
Service...................................................... 539
Media Hub..................................................... 525
Memory Seat................................................... 35
Methanol....................................................... 446
Mirrors............................................................. 43Electric Powered......................................... 45
Heated........................................................ 47
Memory....................................................... 35Outside........................................................ 45
Rearview..................................... 43, 44, 338
Trailer Towing.............................................. 46
Modifications/AlterationsVehicle
........................................................ 12Monitor, Tire Pressure System....................... 163
Mopar Parts................................................... 538
MP3 Control.................................................. 525
Multi-Function Control Lever............................ 49
N
Navigation System (Uconnect GPS)
............... 302
New Vehicle Break-In Period.......................... 228
Noise ControlMaintenance............................................. 419
Tampering Prohibited................................ 420
Noise Emission Warranty..................... 419, 420
O
Occupant Restraints
..................................... 171
Octane Rating, Gasoline (Fuel)..................... 446
Off-Pavement Driving (Off-Road).......... 255, 336
Off-Road Driving (Off-Pavement).......... 255, 336
Oil Change Indicator..................................... 385
Oil Filter, Change.......................................... 398Oil Filter, Selection........................................ 398
Oil Pressure Light.......................................... 132
Oil Reset....................................................... 119Oil, Engine................................... 396, 452, 454
Capacity.................................................... 451
Change Interval........................................ 396
Dipstick.................................................... 394
Disposal................................................... 398Filter....................................... 398, 452, 454
Filter Disposal........................................... 398
Identification Logo........................... 396, 397
Materials Added To.................................. 398Pressure Warning Light............................ 132
Recommendation............................ 396, 451
Synthetic.................................................. 398
Viscosity.......................................... 397, 451
Onboard Diagnostic System.......................... 141
Operating Precautions.................................. 141
Operator ManualOwner's Manual
..................................12, 539
Outside Rearview Mirrors.................................45
Overdrive....................................................... 242
Overdrive OFF Switch.................................... 242
Overheating, Engine...................................... 367
P
Paint Care
..................................................... 439
Panic Alarm......................................................15
Parking Brake............................................... 229
ParkSense System, Rear...................... 289, 294Passive Entry....................................................28
Pedals, Adjustable...........................................43
Perform Service Indicator, Reset.................. 385
Pets............................................................... 208
Pickup Box................................................92, 94
Pinch Protection...............................................74
Placard, Tire And Loading Information.......... 426
PowerDistribution Center (Fuses)
....................... 354
Door Locks...................................................27
Mirrors.........................................................45
Outlet (Auxiliary Electrical Outlet)..........88, 90
Seats...........................................................34
Side Steps...................................................28Sliding Rear Window....................................72
Steering.......................................................45
Sunroof........................................................72
Windows......................................................7011

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549
Vehicle User Guide In Vehicle Help
............................................ 13
Navigation................................................... 13
Operating Instructions................................. 13
Searching User Guide.................................. 13
Viscosity, Engine Oil....................................... 397
Voice Recognition System (VR)...................... 529Voltmeter....................................................... 221
W
Warning Lights (Instrument Cluster
Descriptions)
................................................. 134
Warnings And Cautions................................... 12
Warranty Information..................................... 538
Washers, Windshield.............................. 56, 394
Washing Vehicle............................................ 440
WaterDriving Through
........................................ 335
Water SeparatorDiesel Fuel
................................................ 403
Wheel And Wheel Tire Care.......................... 434
Wheel And Wheel Tire Trim........................... 434
Wheel Covers................................................ 352Winch............................................................ 264
Accessories.............................................. 266
Operation................................................. 266Rigging Techniques.................................. 272
Usage....................................................... 264
Wind Buffeting.......................................... 72, 73
Window Fogging............................................... 69
Windows..........................................................70
Power...........................................................70
Rear Sliding.................................................72
Reset Auto-Up..............................................71
Windshield Defroster.................................... 209
Windshield Washers....................... 55, 56, 394
Fluid................................................... 55, 394Windshield Wiper Blades.............................. 409
Windshield Wipers...........................................55
Wipers Blade Replacement........................... 409Wipers, Intermittent.........................................55
Wipers, Rain Sensitive.....................................56
Wireless Charging Pad.....................................91
11

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