2004 DODGE RAM 1500 GAS oil

speeds will reduce fogging. Interior fogging on the
windshield can be quickly removed by selecting the
defrost mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.
Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant during summer to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50 %
concentration is recommended. Refer to Recommended
Fluids and Genuine Parts for the proper coolant type.
When using the air conditioner in extremely heavy traffic
in hot weather especially when towing a trailer, addi-
tional engine cooling may be required. If this situation isencountered, operate the transmission in a lower gear to
increase engine RPM, coolant flow and fan speed. When
stopped in heavy traffic, it may be necessary to shift into
NEUTRAL and depress the accelerator slightly for fast
idle operation to increase coolant flow and fan speed.
NOTE:On models equipped with Diesel engines, the
idle speed will automatically increase to 1000 rpm at
elevated coolant temperatures to improve engine cooling.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other obstruc-
tions.
UNDERSTANDING YOUR INSTRUMENT PANEL 197
4

NTire Spinning........................248
NTread Wear Indicators..................249
NReplacement Tires.....................249
NAlignment And Balance.................250
mSupplemental Tire Pressure Information.......251
mTire Chains...........................251
mSnow Tires...........................253
mTire Rotation Recommendations............253
NDual Rear Wheels.....................255
mFuel Requirements......................256
NReformulated Gasoline.................257
NGasoline/Oxygenate Blends..............257
NMMT In Gasoline.....................258NSulfur In Gasoline.....................258
NMaterials Added To Fuel................259
NAdding Fuel.........................259
NFuel System Cautions..................261
NCarbon Monoxide Warnings..............262
mFlexible FuelÐ(Fleet Vehicles Only)..........262
NE-85 General Information................262
NEthanol Fuel (E-85)....................263
NFuel Requirements....................263
NSelection Of Engine Oil.................264
NStarting............................265
NCruising Range.......................265
NReplacement Parts.....................265
STARTING AND OPERATING 201
5

NMaintenance.........................265
mCatalytic Converter.....................266
mVehicle Loading........................267
NCertification Label.....................267
mTrailer Towing.........................270
NTo Maintain Warranty Coverage...........270
NAxle Lubricant And Trailer Towing.........272
NTrailer Towing Recommendations..........273
NTrailer Towing Ð Hitches...............274
NConnecting Trailer Lighting And Electric
Trailer Brakes........................275
NTrailer Weight And Trailer Tongue Weight....276
NTrailer Towing Information
(Maximum Trailer Weight Ratings).........277NTrailer Towing Mirrors Ð If Equipped......278
NCooling System Tips Ð Trailer Towing......278
NAutomatic Transmission Oil Temperature
Warning Light.......................279
NTowing With An Automatic Transmission....279
mSnowplow............................280
NDodge Ram 1500 Models................280
NBefore Plowing.......................281
NSnowplow Model Prep Package Availability . . 281
NOver The Road Operation With Snowplow
Attached...........................282
NMethods For Removing Snow............283
NOperating Tips.......................283
NGeneral Maintenance...................284
202 STARTING AND OPERATING

3500 Dual Rear Wheel Models Only
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
system. You may experience some clicking or hissing
noises from the hydro-boost system during hard braking
conditions.
NOTE:Under cold temperatures, pedal effort will be
higher than normal until the power steering oil reaches
operating temperature.
Brake Noise
During normal operation of the brake system certain
noises may be present from time to time. Occasional
9groan9or9squeal9noises may occur during normal
operation of the brake system which may not be indica-
tive of a problem. These noises may be heard at any time
the brakes are applied but may be more noticeable during
the first few brake applications in the morning. Moisture,
hot or cold temperature, dust, and or other debris mayalso contribute to the noise condition. Repeated or con-
tinuous noises during braking may be an indication that
the brake linings are worn and in need of replacement.
Rear Wheel Anti-Lock Brake System Ð RWAL
The Anti-lock Brake System provides increased vehicle
stability and brake performance under most braking
conditions. The system automatically controls the opera-
tion of the rear brakes to prevent rear wheel lockup.
The system remains operational in the four-wheel drive
mode. The level of performance is reduced when the
front brakes are locked up. This may cause the rear
brakes to lockup through the drivetrain, which may
reduce the effectiveness of the Anti-lock Brake System.
During severe braking conditions, particularly with
changing road surfaces, such as ice to concrete, a slight
drop or minor pulsation may be felt in the brake pedal.
STARTING AND OPERATING 231
5

NOTE:When the ambient temperature is above 90ÉF,
you may experience hard starting and rough idle follow-
ing start up even if the above recommendations are
followed.
Selection Of Engine Oil
For best performance and protection of your vehicle, use
only crankcase engine oils that meet the following re-
quirements:
²Engine Oil Selection for Operating on E-85
If you operate the vehicle on E-85 fuel either full or
part-time, use only Mopar Flexible Fuel 5W-30 engine
oil (P/N 4318086) or an equivalent that meets
DaimlerChrysler Standard MS-9214. Equivalent com-
mercial Flexible Fuel engine oils may be labeled as
Flexible Fuel (FFV) or Alternate Fuel (AFV). These
engine oils may be satisfactory if they meet the
DaimlerChrysler Standard.The 5W-30 engine oil installed at the factory meets the
DaimlerChrysler requirements for Flexible Fuel engine
oil.
SAE 5W-30 engine oil is preferred for use in Flexible Fuel
engines.
CAUTION!
If Flexible Fuel engine oil is not used when using
E-85, engine wear may be increased significantly.
This may void your warranty.
²Engine Oil Selection for Operating on Gasoline
If you operate the vehicle on regular unleaded gasoline
ONLY, use Mopar oil or an equivalent that meets certified
API (American Petroleum Institute) Quality.
264 STARTING AND OPERATING

²Air ConditioningÐturn it off temporarily.
²Hilly TerrainÐTurn overdrive off.
See Cooling System Operating information in the Service
and Maintenance section of this manual for more infor-
mation.
Automatic Transmission Oil Temperature Warning
Light
All vehicles with automatic transmissions are equipped
with a transmission sump oil temperature sensor and
warning light. If elevated transmission temperatures are
encountered, the engine controller will select the most
desirable gear until the transmission temperatures are
reduced. If transmission oil temperatures continue to
rise, a warning light located in the instrument cluster will
illuminate. If this should occur, stop the vehicle, shift to
Neutral, and run the engine at idle or faster until the light
goes off.
Towing With An Automatic Transmission
Vehicles equipped with an automatic transmission may
shift into and out of Overdrive, or a lower gear, when
driving in hilly areas, when heavily loaded, or when
towing into heavy winds.
When this condition occurs, select TOW/HAUL mode or
shift into a lower gear to prevent excessive transmission
wear and/or overheating, and to provide better engine
braking.
NOTE:Do not exceed the following RPM while manu-
ally downshifting:
²5800 rpm with 3.7L engines.
²5800 rpm with 4.7L engines.
²5600 rpm with 5.7L engines.
STARTING AND OPERATING 279
5

WARNING!
A loose tire or jack thrown forward in a collision or
hard stop could injure someone in the vehicle.
Always stow the jack parts and the extra tire and
wheel in the places provided.
7. Install wheel center cap and remove wheel blocks. Do
not install chrome or aluminum wheel center caps on the
spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. If the bottle
jack will not lower by turning the dial (thumb wheel) by
hand, it may be necessary to use the jack drive tube in
order to lower the jack. Stow the replaced tire, jack, and
tools as previously described.
9. Adjust the tire pressure when possible.NOTE:Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel nuts.
Hub Caps
The hub caps must be removed before raising the vehicle
off the ground.
For 2500/3500 single rear wheel (SRW) models, use the
blade on the end of the lug wrench to pry the cap off.
On 3500 models with dual rear wheels (DRW), you must
first remove the hub caps. The jack handle driver has a
hook at one end that will fit in the pry off notch of the
rear hub caps. Position the hook and pull out on the
ratchet firmly. The cap should pop off. The wheel skins
can now be removed. For the front hub cap on 3500
models use the blade on the end of the lug wrench to pry
the caps off. The wheel skin can now be removed.
You must use the flat end of the lug wrench to pry off the
wheel skins. Insert the flat tip completely and using a
308 WHAT TO DO IN EMERGENCIES

back and forth motion, loosen the wheel skin. Repeat this
procedure around the tire until the skin pops off.
Replace the wheel skins first using a rubber mallet. When
replacing the hub caps, tilt the cap retainer over the
lugnut bolt circle and strike the high side down with a
rubber mallet. Be sure that the hub caps and wheel skins
are firmly seated around the wheel.
8-Stud Ð Dual Rear Wheels
Dual wheels are flat mounted, center piloted. The lug
nuts are a two piece assembly. When the tires are being
rotated or replaced, clean these lug nuts and add 2 drops
of oil at the interface between the hex and the washer.Slots in the wheels will assist in properly orienting the
inner and outer wheels. Align these slots when assem-
bling the wheels for best access to the tire valve on the
inner wheel. The tires of both dual wheels must be
completely off the ground when tightening to insure
wheel centering and maximum wheel clamping.
WHAT TO DO IN EMERGENCIES 309
6