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Use the following procedure to check the transmission
fluid level properly:
1. Monitor the transmission temperature using the EVIC
display, and operate the vehicle as required to reach
the normal operating temperature.
2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60
seconds, and leave the engine running for the rest of
this procedure.
4. Fully apply the parking brake and press the brake
pedal.
5. Place the shift lever momentarily into each gear posi-
tion (allowing time for the transmission to fully en-
gage in each position), ending with the transmission in
PARK.6. Remove the dipstick, wipe it clean and reinsert it until
seated.
7. Remove the dipstick again and note the fluid level on
both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid
if the actual level is at or above the hole. The fluid level
should be between the “HOT” (upper) reference holes
on the dipstick at normal operating temperature. If the
fluid level is low, add fluid through the dipstick tube
to bring it to the proper level.Do not overfill.Use
ONLY the recommended fluid (seeFluids, Lubri-
cants, and Genuine Partsfor fluid specifications).
After adding any quantity of oil through the dipstick
tube, wait a minimum of two minutes for the oil to
fully drain into the transmission before rechecking the
fluid level.
320 MAINTAINING YOUR VEHICLE
Page 330 of 360

FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use MOPAR Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT
(Organic Additive Technology).
Engine Oil In ambient temperatures above 0°F (-18°C), we recommend you use 15W-40 engine oil such
as MOPAR, Shell Rotella and Shell Rimula that meets FCA US Material Standard MS-10902
and the API CJ-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 5W-40synthetic
engine oil such as MOPAR, Shell Rotella and Shell Rimula that meets FCA US Material
Standard MS-10902 and the API CJ-4 engine oil category is required.
Engine Oil Filter We recommend you use MOPAR Engine Oil Filters.
Fuel Filters We recommend you use MOPAR Fuel Filter. Must meet 3 micron rating.Using a fuel filter
that does not meet the manufacturers filtration and water separating requirements can
severely impact fuel system life and reliability.
328 MAINTAINING YOUR VEHICLE
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Component Fluid, Lubricant, or Genuine Part
Diesel Exhaust Fluid MOPAR Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been API
Certified to the ISO 22241 standard. Use of fluids not API Certified to ISO 22241 may result
in system damage. You can receive assistance in locating DEF in the United States by calling
866-RAM-INFO (866-726-4636). In Canada call 1–800–465–2001 (English) or 1–800–387–9983
(French).
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – If
Equipped (Six-Speed 68RFE) –
Pickup models without PTOWe recommend you use MOPAR® ATF+4® Automatic Transmission Fluid
or equivalent licensed ATF+4® product. Failure to use ATF+4® fluid may
affect the function or performance of your transmission.
Automatic Transmission – If
Equipped (Six-Speed AS69RC) –
Pickup models with PTO, and all
Chassis Cab modelsWe recommend you use MOPAR® ASRC Automatic Transmission Fluid or
equivalent. Failure to use the proper fluid may affect the function or
performance of your transmission.
330 MAINTAINING YOUR VEHICLE
Page 349 of 360

Diesel Fuel...............................69
Diesel Fuel Requirements....................69
Bulk Storage of.........................95
Diesel Fuel System, Re-Priming...............109
Disposal
Antifreeze (Engine Coolant)................117
Draining Fuel/Water Separator Filter...........105
Electronic Vehicle Information Center (EVIC)......30
Engine.................................100
Air Cleaner...........................104
Block Heater........................62,68
Break-In Recommendations.................14
Compartment..........................100
Coolant (Antifreeze).....................122
Identification..........................100
Idling................................65
Oil..............................102 , 122
Oil Filler Cap..........................103Filters
Air Cleaner...........................104
Engine Fuel...........................105
Engine Oil........................104 , 122
Engine Oil Disposal.....................104
Flashers
Turn Signal............................19
Fluid Capacities..........................121
Fluid Level Checks
Brake................................118
Fluid, Brake.............................125
Fluids, Lubricants and Genuine Parts...........122
Fog Lights...............................26
Fuel...................................69
Adding...............................92
Diesel............................69,122
Filter................................105
Requirements...........................69
Specifications...........................70
INDEX - RAM 1500 347
Page 355 of 360

Engine Oil Disposal.....................296
Flashers
Turn Signal...........................155
Fluid Capacities..........................327
Fluid Level Checks
Brake................................316
Manual Transmission....................318
Transfer Case..........................317
Fluids, Lubricants and Genuine Parts...........328
Fog Lights..............................162
Fuel...................................248
Adding..........................253 , 256
Diesel........................248 , 256 , 328
Filter................................300
Requirements..........................248
Specifications..........................249
Tank Capacity..........................327
Fueling................................253Gauges
Speedometer..........................159
Tachometer............................154
Voltmeter.............................214
Gear Ranges.............................228
Gross Axle Weight Rating...................262
Gross Vehicle Weight Rating..................262
Hitches
Trailer Towing.........................265
Idle Up Feature...........................218
Information Center, Vehicle..................166
Instrument Cluster........................152
Integrated Trailer Brake Controls..............270
Intervention Regeneration Strategy.............178
Jump Starting............................282
INDEX - RAM 2500 / 3500 / 4500 / 5500 353