2008 DODGE RAM 2500 DIESEL check transmission fluid

Shallow Standing Water
Although your vehicle is capable of driving through
shallow standing water, consider the following Caution
and Warning before doing so.
CAUTION!
²Always check the depth of the standing water
before driving through it. Never drive through
standing water that is deeper than the bottom of
the tire rims mounted on the vehicle.
²Determine the condition of the road or the path
that is under water, and if there are any obstacles
in the way, before driving through the standing
water.
²Do not exceed 5 mph (8 km/h) when driving
through standing water. This will minimize wave
effects.
CAUTION!
²Driving through standing water may cause dam-
age to your vehicle's drivetrain components. Al-
ways inspect your vehicle's fluids (i.e., engine oil,
transmission, axle, etc.) for signs of contamination
(i.e., fluid that is milky or foamy in appearance)
after driving through standing water. Do not con-
tinue to operate the vehicle if any fluid appears
contaminated, as this may result in further dam-
age. Such damage is not covered by the New
Vehicle Limited Warranty.
²Getting water inside your vehicle's engine can
cause it to lock up and stall out, and cause serious
internal damage to the engine. Such damage is not
covered by the New Vehicle Limited Warranty.
308 STARTING AND OPERATING

The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. See Maintenance
Schedule in section 8 of this manual for transmission
fluid change intervals.
NOTE:Check the automatic transmission fluid level
before towing.
Towing Tips Ð Tow/Haul (If Equipped)
To reduce potential for automatic transmission overheat-
ing, turn the ªTOW HAULº feature ON when driving in
hilly areas or downshift the transmission (using the
Auto-6 [ERS] switch).
Towing Tips Ð Electronic Speed Control (If
Equipped)
þ
Don't use in hilly terrain or with heavy loads.
þWhen using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
þUse speed control in flat terrain and with light loads to
maximize fuel efficiency.
Towing Tips Ð Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
þCity Driving
When stopped for short periods of time, put transmission
in neutral and increase engine idle speed.
þHighway Driving
Reduce speed.
þAir Conditioning
Turn off temporarily.
STARTING AND OPERATING 369
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Drain And Refill
Follow the Maintenance Schedule for recommended
transfer case fluid change intervals.
Lubricant Selection
Refer to Fluids, Lubricants and Genuine Parts for the
correct lubricant type.
Manual Transmission Ð If Equipped
Fluid Level Check
This fluid level can be checked by removing the filler
plug. If the level of the lubricant is more than 1/4º below
the bottom of the filler hole while the vehicle is on level
ground, enough lubricant should be added to bring the
level to the bottom of the filler hole.
Lubricant Selection for 6-Speed Manual
Transmission Ð If Equipped
If it becomes necessary to add fluid or change the fluid,
be sure to use the same lubricant or equivalent. Refer to
Fluids, Lubricants and Genuine Parts for the correct
lubricant type.
Automatic Transmission
Selection Of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission perfor-
mance. Use only manufacturer 's recommended transmis-
sion fluid; refer to ªAutomatic Transmissionº under
ªFluids, Lubricants and Genuine Partsº in this section
Refer to Fluids, Lubricants and Genuine Parts for correct
fluid type. It is important that the transmission fluid be
maintained at the prescribed level using the recom-
mended fluid.
MAINTAINING YOUR VEHICLE 447
7

CAUTION!
Using a transmission fluid other than the manufac-
turers recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than the
manufacturers recommended fluid will result in
more frequent fluid and filter changes. Refer to
Fluids, Lubricants and Genuine Parts for correct
fluid type.
Fluid Level Check
If equipped with a dipstick, use the following procedure.
If your vehicle has a capped dipstick tube, it is sealed and
should not be tampered with. Your authorized dealer has
the proper tools to ensure that the fluid level is set
properly. The fluid level should be checked when theengine is fully warmed up and the fluid in the transmis-
sion is at normal operating temperature. Operation of the
transmission with an improper fluid level will greatly
reduce the life of the transmission and of the fluid. Check
the fluid level whenever the vehicle is serviced.
Procedure For Checking Fluid Level
To properly check the automatic transmission fluid level,
the following procedure must be used:
1. Operate the engine at idle speed and normal operating
temperature.
2. The vehicle must be on level ground.
3. Fully apply the parking brake and press the brake
pedal.
4. Place the gear selector momentarily in each gear
position ending with the lever in PARK.
448 MAINTAINING YOUR VEHICLE

5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the ªHOTº
(upper) reference holes on the dipstick at normal operat-
ing temperature. Verify that a solid coating of oil is seen
on both sides of the dipstick. If the fluid is low, add as
required into the dipstick tube.Do not overfill.After
adding any quantity of oil through the oil fill 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 transmissionbelow
the operating temperature, the fluid level should be
between the two ªCOLDº (lower) holes on the dipstick
with the fluid at approximately 70ÉF (21ÉC) (room tem-
perature). If the fluid level is correctly established at
room temperature, it should be between the ªHOTº(upper) reference holes when the transmission reaches
180ÉF (82ÉC). Remember it is best to check the level at the
normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50ÉF
(10ÉC) it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release parking brake.
To prevent dirt and water from entering the transmission
after checking or replenishing fluid, make certain that the
dipstick cap is properly reseated. It is normal for the
dipstick cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in the
dipstick tube.
MAINTAINING YOUR VEHICLE 449
7

take some washer fluid and apply it to a cloth or towel
and wipe clean the wiper blades, this will help blade
performance.
Once a Month
²Check tire pressure and look for unusual wear or
damage.
²Inspect the batteries and clean and tighten the termi-
nals as required.
²Check the fluid levels of coolant reservoir, brake
master cylinder, and transmission and transfer case (if
equipped), add as needed.
²Check all lights and all other electrical items for correct
operation.
²Drain water from the fuel filter.
²Check Filter MinderŸ (If Equipped). Replace air
cleaner filter element if necessary.At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect the brake hoses.
²Inspect the U-Joints (if equipped) and front suspension
components.
²Check the automatic transmission fluid level.
²Check the manual transmission fluid level.
²Check the coolant level, hoses, and clamps.
²Lubricate outer tie rod ends (4X4) models only.
²Lubricate Front Drive Shaft Fitting (4X4).
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
MAINTENANCE SCHEDULES 485
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(Miles) (112,500) (120,000) (127,50) (135,000) (142,500) (150,000)
Kilometers 181 000 193 000 205 0000 217 000 229 000 241 000
[Months] [90] [96] [102] [108] [114] [120]
Change engine oil and engine oil filter. X XXXXX
Lubricate Front Drive Shaft Fitting (4X4). X XXXXX
Rotate tires. X XXXXX
Lubricate outer tie rod ends. X XXXXX
Flush and replace engine coolant at 120 months,
if not replaced at 100,000 miles (161 000 km).***X
Inspect drive belt, replace as required.* X X X
Change transfer case fluid (4X4). X
Check transfer case fluid level (4X4).X
Change front and rear axle fluid (4X4). X X X
Change the automatic transmission fluid & filter. X X
Change manual transmission fluid. X
Replace fuel filter element. X X X
Inspect front wheel bearings. X X
MAINTENANCE SCHEDULES 491
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Adding Fuel........................... 349
Adjustable Pedals....................... 138
Air Cleaner, Engine (Engine Air Cleaner
Filter).............................419,452
Air Conditioner Maintenance............... 430
Air Conditioning Refrigerant.............430,431
Air Conditioning System................252,430
Air Conditioning System, Zone Control........ 255
Air Filter.............................. 419
Air Pressure, Tires....................325,333
Airbag............................35,48,55
Airbag Light.......................58,77,190
Airbag On/Off Switch..................... 55
Alarm, Panic............................ 24
Alarm (Security Alarm).................19,192
Alarm System (Security Alarm)............... 19
Alignment and Balance................... 332
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 245Antifreeze (Engine Coolant)..............438,439
Capacities........................... 479
Anti-Lock Warning Light...............195,314
Anti-Theft Security Alarm (Theft Alarm)........ 19
Anti-Theft System.....................19,192
Appearance Care........................ 455
Ashtray............................... 162
Assistance Towing....................... 102
Auto Unlock, Doors...................... 146
Automatic Dimming Mirror................. 85
Automatic Door Locks.................... 146
Automatic Transaxle...................... 12
Interlock System........................ 19
Automatic Transmission................... 447
Adding Fluid......................448,449
Fluid and Filter Changes................. 450
Fluid Level Check...................... 448
Fluid Type........................447,482
Shift Indicator........................ 192
506 INDEX