2008 DODGE RAM 3500 GAS fuel filter

NOTE:Using the ªTOW HAULº or ªOD/OFFº range
while operating the vehicle under heavy operating con-
ditions will improve performance and extend transmis-
sion life by reducing excessive shifting and heat build up.
This action will also provide better engine braking.
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 HAUL OD/OFFº feature ON when
driving in hilly areas or shift the transmission to Drive
position 2 on more severe grades.
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.
STARTING AND OPERATING 399
5

MAINTAINING YOUR VEHICLE
CONTENTS
mEngine CompartmentÐ 3.7L...............444
mEngine CompartmentÐ 4.7L...............445
mEngine CompartmentÐ 5.7L...............446
mOnboard Diagnostic System (OBD II).........447
NLoose Fuel Filler Cap Message............447
mEmissions Inspection And Maintenance
Programs............................448
mReplacement Parts......................449
mAuthorized Dealer Service................450mMaintenance Procedures..................450
NEngine Oil..........................451
NEngine Oil Filter......................454
NDrive Belts Ð Check Condition And Tension . . 454
NSpark Plugs (Gas Engines)...............454
NEngine Air Cleaner Filter................455
NEngine Fuel Filter.....................455
NCatalytic Converter....................455
NEmission-Related Components............457
7

Engine Air Cleaner Filter
Follow the Maintenance Schedule for recommended En-
gine Air Cleaner Filter change intervals.
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.
Engine Fuel Filter
A plugged fuel filter can cause stalling, limit the speed at
which a vehicle can be driven or cause hard starting.
Should an excessive amount of dirt accumulate in the
fuel tank, frequent filter replacement may be necessary.
Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
MAINTAINING YOUR VEHICLE 455
7

Component Fluids, Lubricants and Genuine Parts
Engine Oil Filter (4.7L & 5.7L En-
gine)MopartEngine Oil Filter, P/N 4884899AB or equivalent.
Spark Plugs (5.7L Engine) REC14MCC4 (Gap 0.043 in [1.09 mm])
Spark Plugs (4.7L Engine) Upper Bank Ð FR8TE2 (Gap 0.039 in [.99 mm]) Lower Bank Ð FR8T1332
(Gap 0.051 in [1.30 mm])
Spark Plugs (3.7L Engine) ZFR6F-11G (Gap 0.043 in [1.09 mm])
Fuel Selection (3.7L/4.7L Engine) 87 Octane
Fuel Selection (5.7L Engine) 87 Octane Acceptable - 89 Octane Recommended
Chassis
Component Fluids, Lubricants and Genuine Parts.
Automatic Transmission MopartATF+4, Automatic Transmission Fluid.
Transfer Case MopartATF+4, Automatic Transmission Fluid.
NVG 246 Automatic Transfer Case
OnlyMopartPN 05179014AA, NVG 246 Automatic Transmission Fluid or
equivalent.
Manual Transmission Fluid (G238) MopartATF+4, Automatic Transmission Fluid.
Manual Transmission Fluid (G-56) MopartATF+4, Automatic Transmission Fluid.
MAINTAINING YOUR VEHICLE 511
7

Adding Fuel........................... 375
Adjustable Pedals....................... 144
Air Cleaner, Engine
(Engine Air Cleaner Filter)..............455,481
Air Conditioner Maintenance............... 459
Air Conditioning Refrigerant.............459,460
Air Conditioning System................261,459
Air Conditioning System, Zone Control........ 264
Air Pressure, Tires....................348,357
Airbag............................34,48,56
Airbag Light.......................59,79,197
Airbag On/Off Switch..................... 56
Alarm (Security Alarm).................19,199
Alarm System (Security Alarm)............... 19
Alignment and Balance................... 356
Alterations/Modifications, Vehicle............. 7
Antenna, Satellite Radio................... 254
Antifreeze (Engine Coolant)...........466,467,508
Disposal............................ 469Anti-Lock Brake System (ABS)............320,325
Anti-Lock Warning Light...............202,322
Anti-Theft Security Alarm (Theft Alarm)........ 19
Anti-Theft System.....................19,199
Appearance Care........................ 484
Ashtray............................... 168
Assistance Towing....................... 104
Automatic Dimming Mirror................. 87
Automatic Transaxle...................... 12
Interlock System........................ 19
Automatic Transmission
Adding Fluid......................... 478
Fluid and Filter Changes................. 479
Fluid Level Check...................476,477
Fluid Type........................476,511
Shift Indicator........................ 199
Shifting............................. 283
Special Additives...................... 479
Axle Fluid..........................474,511
532 INDEX

Filters
Air Cleaner........................455,481
Engine Fuel.......................... 455
Engine Oil........................454,510
Engine Oil Disposal.................... 453
Flashers
Turn Signal.......................... 139
Flat Tire Stowage.....................422,433
Flexible Fuel Vehicles
Cruising Range........................ 380
Engine Oil........................... 380
Fuel Requirements..................377,379
Replacement Parts..................... 381
Starting............................. 380
Flooded Engine Starting................... 280
Fluid, Brake............................ 511
Fluid Capacities......................... 508
Fluid Level Checks
Automatic Transmission................. 477Brake............................... 472
Power Steering........................ 460
Fluids, Lubricants and Genuine Parts.......... 510
Fog Lights.......................138,201,498
Fold Flat Load Floor..................... 179
Four Wheel Drive....................... 294
Four-Way Hazard Flasher.................. 416
Freeing A Stuck Vehicle................... 437
Front Axle (Differential)................... 474
Front Wheel Bearings..................... 479
Fuel................................. 371
Adding............................. 375
Filler Cap (Gas Cap).................... 377
Filter............................... 455
Gauge.............................. 207
Hoses.............................. 471
Octane Rating......................371,510
Requirements......................371,508
System Hoses......................... 471
INDEX 537
10

Outside.............................. 87
Rearview............................. 86
Trailer Towing......................89,400
Modifications/Alterations, Vehicle............. 7
Monitor, Tire Pressure System............... 362
Mopar Parts.........................449,526
Multi-Displacement Engine System........... 338
Multi-Function Control Lever............... 139
Navigation Radio........................ 248
Navigation System....................... 248
Noise Control
Maintenance.......................... 480
Tampering Prohibited................480,481
Noise Emission Warranty.................. 482
Occupant Restraints....................... 34
Octane Rating, Gasoline (Fuel).............. 371
Odometer..........................199,207Trip .............................199,207
Off-Pavement Driving (Off-Road)............ 317
Off-Road Driving (Off-Pavement)............ 317
Oil Change Indicator..................... 200
Oil Change Indicator, Reset................. 200
Oil, Engine.........................451,510
Capacity............................ 508
Change Interval....................... 452
Dipstick............................. 451
Disposal............................ 453
Filter............................454,510
Filter Disposal........................ 453
Identification Logo..................... 452
Materials Added to..................... 453
Pressure Gauge....................... 197
Recommendation...................452,508
Synthetic............................ 453
Viscosity..........................452,508
Onboard Diagnostic System..............447,448
542 INDEX