Page 314 of 406
CAUTION!
•Under no circumstances should oil change inter-
vals exceed 15,000 miles (24 000 km) pickup or
12,500 miles (20 000 km) chassis cab if operation
occurs with greater than 5% biodiesel blends. Oil
change intervals should not exceed 6 months in
either case. Failure to comply with these Oil
Change requirements for vehicles operating on
biodiesel blends up to B20 may result in premature
engine wear. Such wear is not covered by the New
Vehicle Limited Warranty.
• B20 Biodiesel capable: The engine may suffer se-
vere damage if operated with concentrations of
Biodiesel higher than 20%.
ADDING FUEL — 2500/3500 DIESEL MODELS
1. Open the fuel filler door.
1 — Diesel Exhaust Fluid Fill Location
2 — Diesel Fuel Fill Location
NOTE: There is no fuel filler cap. A flapper door inside
the filler pipe seals the system.
Diesel Fuel And Diesel Exhaust Fluid Fill Location
312 STARTING AND OPERATING
Page 367 of 406

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 specified fluid (see Fluids, Lubricants, and
Genuine Parts for 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.
NOTE: If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at 60-70°F / 16-21°C for 68RFE transmis-
sion, or 68-86°F / 20-30°C for AS69RC transmission. Only
use the COLD region of the dipstick as a rough reference
when setting the fluid level after a transmission service
or fluid change. Re-check the fluid level, and adjust as
required, once the transmission reaches normal operating
temperature.
CAUTION!
If the fluid temperature is below 50°F (10°C) it may
not register on the dipstick. Do not add fluid until
the temperature is elevated enough to produce an
(Continued)
7
MAINTAINING YOUR VEHICLE 365
Page 394 of 406

Adding Engine Coolant (Antifreeze)............140
Adding Fuel .............................114
Air Bag Light .............................25
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .128
Alarm (Security Alarm) ......................28
Antifreeze (Engine Coolant) ..................139
Capacities ........................... .146
Disposal ............................. .142
Automatic Transmission Fluid Type ........................... .150
Axle Fluid ............................. .150
Battery .................................30
Charging System Light ....................30
Brake Fluid ............................ .150
Brake System ........................... .144
Fluid Check .......................... .144
Master Cylinder ....................... .144Warning Light
..........................26
Capacities, Antifreeze (Engine Coolant) ..........146
Capacities, Fluid ......................... .146
Caps, Filler Oil (Engine) .......................... .127
Radiator (Coolant Pressure) ................142
Charge Air Cooler ........................ .144
Coolant Pressure Cap (Radiator Cap) ...........142
Cooling System .......................... .138
Adding Coolant (Antifreeze) ...............140
Coolant Capacity ...................... .146
Coolant Level ......................... .138
Disposal Of Used Coolant .................142
Drain, Flush, And Refill ...................139
Points To Remember .....................143
Pressure Cap ......................... .142
Radiator Cap ......................... .142
Selection Of Coolant (Antifreeze) ........139 , 147
8
INDEX - RAM 1500 391
Page 399 of 406

Adding Engine Coolant (Antifreeze)............356
Adding Fuel ............................ .312
Air Bag Light ........................... .191
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .340
Air Filter .............................. .340
Alarm (Security Alarm) .....................194
Antifreeze (Engine Coolant) ..................355
Capacities ........................... .373
Disposal ............................. .358
Automatic Transmission Adding Fluid ......................... .365
Fluid Level Check ...................... .364
Fluid Type ........................... .377
Shifting ............................. .286
Axle Fluid ............................. .377
Battery ................................ .196
Blanket .......................... .274 , 354Charging System Light
...................196
Emergency Starting ..................... .326
Brake System ........................... .360
Fluid Check .......................... .360
Master Cylinder ....................... .360
Warning Light ........................ .192
Brake/Transmission Interlock .................286
Capacities, Antifreeze (Engine Coolant) ..........373
Capacities, Fluid ......................... .373
Caps, Filler Oil (Engine) .......................... .338
Radiator (Coolant Pressure) ................358
Charge Air Cooler ........................ .360
Coolant Pressure Cap (Radiator Cap) ...........358
Cooling System .......................... .354
Adding Coolant (Antifreeze) ...............356
Coolant Capacity ...................... .373
Coolant Level ......................... .354
396 INDEX - RAM 2500 / 3500 / 4500 / 5500
Page 401 of 406

Exhaust Brake........................... .281
Exhaust System .......................... .367
Filters Engine Fuel .......................... .344
Engine Oil ....................... .340 , 374
Engine Oil Disposal .....................340
Flashers Turn Signal .......................... .222
Fluid Capacities ......................... .373
Fluid Level Checks Brake ............................... .360
Manual Transmission ....................362
Transfer Case ......................... .362
Fluids, Lubricants And Genuine Parts ...........374
Fog Lights ..............................211
Fuel .................................. .307
Adding ......................... .312 , 315
Diesel ....................... .307 , 315 , 374Filter
............................... .344
Light ............................... .209
Requirements ......................... .307
Specifications ......................... .308
Tank Capacity ......................... .373
Fueling ............................... .312
Gauges Voltmeter ............................ .272
Gear Ranges ............................ .287
Idle Up Feature .......................... .276
Information Center, Vehicle ..................228
Instrument Cluster ....................... .183
Intervention Regeneration Strategy .............233
Jump Starting ........................... .326
Keyless Enter-N-Go ....................... .261
398 INDEX - RAM 2500 / 3500 / 4500 / 5500