2015 Ram 1500 differential fluid

something goes wrong. You should never stop or shut a
vehicle off when crossing deep water unless you ingested
water into the engine air intake. If the engine stalls do not
attempt to restart it. Determine if it has ingested water
first. The key to any crossing is low and slow. You want
to use first gear in 4L (Low Range) and proceed very
slowly with a constant slow speed (3-5 mph [5–8 km/h]
maximum) and light throttle. Keep the vehicle moving;
do not try to accelerate through the crossing. After
crossing any water higher than the bottom of the axle
differentials, you should inspect all of the vehicle fluids
for signs of water ingestion.
CAUTION!
Water ingestion into the axles, transmission, transfer
case, engine or vehicle interior can occur if you drive
too fast or through too deep of water. Water can cause
(Continued)
CAUTION!(Continued)
permanent damage to engine, driveline or other
vehicle components and your brakes will be less
effective once wet and/or muddy.
•Before You Cross Any Type Of Water–Asyou
approach any type of water you need to determine if
you can cross it safely and responsibly. If necessary, get
out and walk through the water or probe it with a
stick. You need to be sure of its depth, approach angle,
current and bottom condition. Be careful of murky or
muddy waters, check for hidden obstacles. Make sure
you will not be intruding on any wildlife and you can
recover the vehicle if necessary. The key to a safe
crossing is the water depth, current and bottom con-
ditions. On soft bottoms the vehicle will sink in,
effectively increasing the water level on the vehicle. Be
sure to consider this when determining the depth and
the ability to safely cross.
5
STARTING AND OPERATING 543

NOTE:The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Limited-Slip Differentials
1500 Model rear axles equipped with a Limited Slip
Differential require that 5 oz. (148 ml) MOPAR® Limited
Slip Additive be added to the gear lubricant. Refer to
“Fluids, Lubricants, and Genuine Parts” in “Maintaining
Your Vehicle” for further information. The MOPAR®
Limited Slip Additive should be added to the gear
lubricant whenever a fluid change is made to an axle
equipped with a Limited Slip Differential.
2500/3500 Model axlesDO NOT REQUIREany limited
slip oil additive (friction modifiers).
NOTE:When refilling an axle with a Limited Slip Differ-
ential, (which requires a Limited Slip Additive), the
Limited Slip Additive should be added before the gear
lubricant is added to insure proper additive fill.
Transfer Case
Drain And Refill
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Lubricant Selection
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further information.
Fluid Level Check
This fluid level can be checked by removing the filler
plug. The fluid level should be to the bottom edge of the
filler plug hole with the vehicle in a level position.
7
MAINTAINING YOUR VEHICLE 785

Flooded Engine Starting....................451
Fluid, Brake.............................824
Fluid Capacities..........................819
Fluid Leaks.............................118
Fluid Level Checks
Brake................................782
Power Steering.........................577
Fluids, Lubricants and Genuine Parts...........821
Fog Lights..............................171
Fold Flat Load Floor.......................247
Four-Way Hazard Flasher...................685
Four Wheel Drive.........................494
Freeing A Stuck Vehicle.....................734
Front Axle (Differential).....................784
Fuel...................................634
Adding..............................643
Additives.............................637
Clean Air.............................635
Ethanol..............................636
Filler Cap (Gas Cap).....................645
Gasoline..............................634
Materials Added........................637
Methanol.............................636
Octane Rating..........................634
Requirements..........................634
Tank Capacity..........................819
Fuel, Flexible............................639
Fuel System Caution.......................644
Fuses..................................797
Garage Door Opener (HomeLink®)............214
Gas Cap (Fuel Filler Cap)...................645
Gasoline, Clean Air........................635
Gasoline (Fuel)...........................634
Gasoline, Reformulated.....................635
Gauges
Speedometer..........................294
Tachometer............................289
854 INDEX

Tire Pressure Monitoring (TPMS)............294
Traction Control........................591
Transfer Case..........................497
Turn Signal............................118
Warning (Instrument Cluster Description)......289
Limited-Slip Differential....................551
Loading Vehicle..........................646
Ti re s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..603
Locks..................................37
Automatic Door.........................40
Child Protection.........................41
Door.................................37
Power Door............................39
Low Tire Pressure System...................626
Lubrication, Body.........................767
Lug Nuts...............................686
Maintenance Free Battery....................764
Maintenance Procedures....................754
Maintenance Schedule......................828
Malfunction Indicator Light (Check Engine).......752
Manual, Service..........................844
Manual Transmission
Fluid Level Check.......................785
Lubricant Selection......................824
Memory Seat............................158
Methanol...............................636
Mirrors................................126
Electric Powered........................138
Heated...............................139
Memory..............................158
Outside..............................134
Rearview.............................126
Trailer Towing.........................140
Modifications/Alterations, Vehicle...............7
Monitor, Tire Pressure System................626
MOPAR® Parts...........................753
MTBE/ETBE............................636
858 INDEX

Personal Settings..........................324
Pets...................................113
Pets, Transporting.........................113
Pickup Box..............................251
Placard, Tire and Loading Information..........604
Power
Distribution Center (Fuses)................798
Door Locks............................39
Mirrors..............................138
Outlet (Auxiliary Electrical Outlet)...........227
Seats................................143
Sliding Rear Window....................246
Steering..............................575
Sunroof..............................224
Windows..............................46
Power Steering Fluid.......................824
Pregnant Women and Seat Belts................64
Pretensioners
Seat Belts..............................62
Programmable Electronic Features.............324
Programming Transmitters (Remote Keyless Entry). . .24
Radial Ply Tires...........................611
Radiator Cap (Coolant Pressure Cap)...........775
Radio Operation..........................398
Radio (Sound Systems).....................394
Rain Sensitive Wiper System.................180
Ramp Travel Index........................533
Rear Axle (Differential).....................784
Rear Cargo Area Utility Rails.................266
Rear ParkSense System.....................191
Rear Seat, Folding.........................153
Rear Window Features.....................245
Rear Window, Sliding......................247
Reclining Rear Seats.......................152
Recorder, Event Data.......................82
Recreational Towing.......................673
Shifting into Transfer Case Neutral (N)........676
860 INDEX