2004 DODGE RAM 1500 GAS Owners Manual

Starting
The characteristics of E-85 fuel make it unsuitable for use
when ambient temperatures fall below 0ÉF. In the range
of 0ÉF to 32ÉF, you may experience an increase in the time
it takes for your engine to start, and a deterioration in
drivability (sags and/or hesitations) until the engine is
fully warmed up.
Cruising Range
Because E-85 fuel contains less energy per gallon than
gasoline, you will experience an increase in fuel con-
sumption. You can expect your MPG and your driving
range to decrease by about 30% compared to gasoline
operation.
Replacement Parts
Many components in your Flexible Fuel Vehicle (FFV) are
designed to be compatible with ethanol. Always be sure
that your vehicle is serviced with correct ethanol com-
patible parts.
CAUTION!
Replacing fuel system components with non-ethanol
compatible components can damage your vehicle
and may void the warranty.
Maintenance
If you operate the vehicle using E-85 fuel, follow Sched-
ule B in the maintenance schedule section of this manual.
CAUTION!
Do not use ethanol mixture greater than 85% in your
vehicle. It will cause difficulty in cold starting and
may affect driveability.
STARTING AND OPERATING 265
5

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 converter will not
require maintenance. However, you must keep the en-
gine maintained to assure proper operation and prevent
possible damage.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.CAUTION!
Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
As with any vehicle, do not park or operate this vehicle in
areas where combustible materials such as grass or leaves
can come in contact with a hot exhaust system.
A scorching odor may be detected if you continue to run
a malfunctioning engine. The odor may indicate severe
and abnormal catalyst overheating. If this occurs, the
266 STARTING AND OPERATING

vehicle should be stopped, the engine shut off and the
vehicle allowed to cool. Service, including a tune-up to
manufacturer's specifications should be obtained imme-
diately.
To minimize the possibility of catalyst damage:
²Do not try to start the engine by pushing or towing the
vehicle.
²Do not idle the engine with any spark plug wires
disconnected or removed.
²Do not idle the engine for prolonged periods during
very rough idle or malfunctioning operating condi-
tions.
²Do not allow vehicle to run out of fuel.
VEHICLE LOADING
Certification Label
As required by National Highway Traffic Safety Admin-
istration Regulations, your vehicle has a certification
label affixed to the driver's side door or pillar.
This label contains the month and year of manufacture,
Gross Vehicle Weight Rating (GVWR), Gross Axle Weight
Rating (GAWR) front and rear, and Vehicle Identification
Number (VIN). A Month-Day-Hour (MDH) number is
included on this label and indicates the Month, Day and
Hour of manufacture. The bar code that appears on the
bottom of the label is your Vehicle Identification Number
(VIN).
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your vehicle
including driver, passengers, vehicle, options and cargo.
The label also specifies maximum capacities of front and
STARTING AND OPERATING 267
5

rear axle systems (GAWR). Total load must be limited so
GVWR and front and rear GAWR are not exceeded.
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the
driver, all passengers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for in-
creased durability does not necessarily increase the vehi-
cle's GVWR.
Tire Size
This is the minimum allowable tire size for your vehicle.
Replacement tires must be equal to the load capacity of
this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
268 STARTING AND OPERATING

Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
then be determined separately to be sure that the load is
properly distributed over front and rear axle. Weighing
the vehicle may show that the GAWR of either the front
or rear axles has been exceeded but the total load is
within the specified GVWR. If so, weight must be shifted
from front to rear or rear to front as appropriate until the
specified weight limitations are met. Store the heavier
items down low and be sure that the weight is distributed
equally. Stow all loose items securely before driving.Improper weight distributions can have an adverse effect
on the way your vehicle steers and handles and the way
the brakes operate.
CAUTION!
Do not load your vehicle any heavier than the
GVWR or the maximum front and rear GAWR. If
you do, parts on your vehicle can break, or it can
change the way your vehicle handles. This could
cause you to lose control. Also overloading can
shorten the life of your vehicle.
An EXAMPLE of a loaded vehicle is shown in the
following chart. Note that neither GVWR nor GAWR
capabilities are exceeded. Overloading can cause poten-
tial safety hazards and shorten service life.
STARTING AND OPERATING 269
5

NOTE: The weights shown in this chart are not
necessarily the weights for your vehicle. Also, the
amount of load added to both the front and rear axles
can be computed after the vehicle has been weighed
both in its(curb weight(condition, and in its(loaded
and ready for operation(condition.
Gross Vehicle Weight Rating (GVWR) 6500 LBS.TRAILER TOWING
All Dodge Ram Pickup trucks are intended to tow trailers
up to 2,000 lbs (907 kg) without added equipment or
alterations to standard equipment. Your vehicle may be
factory equipped for safe towing of trailers weighing
over 2,000 lbs (907 kg) with the optional Trailer Tow Prep
Package. See your Dodge dealer for package content.
To Maintain Warranty Coverage
Follow the requirements and recommendations in this
manual concerning vehicles used for trailer towing.
Definitions
The following trailer towing related terminology defini-
tions will assist in understanding the subsequent sec-
tions:
GROSS COMBINATION WEIGHT RATING (GCWR)
is the total permissible weight of your vehicle and trailer
when weighed in combination. (Note that GCWR ratings
270 STARTING AND OPERATING

include a 150 lb (68 kg) allowance for the presence of a
driver.) Tongue Weight (of a trailer) is the weight placed
on a vehicle's trailer hitch by the trailer.
GROSS TRAILER WEIGHT (GTW)is the weight of the
trailer plus the weight of all cargo, consumables and
equipment (permanent or temporary) loaded in or on the
trailer in its9loaded and ready for operation9condition.
TRAILER SWAY CONTROLis a telescoping link that
can be installed between the hitch receiver and the trailer
tongue that typically provides adjustable friction associ-
ated with the telescoping motion to dampen any un-
wanted trailer swaying motions while traveling.CAUTION!
²During the first 500 miles (805 km) your new
vehicle is driven, do not tow a trailer. Doing so
may damage your vehicle.
²When first towing a trailer, limit your speed to 50
mph (80 km/h) during the first 500 miles (805 km)
of towing.
Consider the following items when computing the
weight on the rear axle:
²the tongue weight of the trailer
²the weight of any other type of cargo or equipment put
in or on your vehicle
STARTING AND OPERATING 271
5

NOTE:Remember that everything put into or on the
trailer adds to the load on your vehicle. Also, additional
factory-installed options, or dealer-installed options,
must be considered as part of the total load on your
vehicle. Refer to the Certification label located at the
driver's door for the Gross Vehicle Weight Rating.
WARNING!
Improper towing can lead to an injury accident.
Follow these guidelines to make your trailer towing
as safe as possible:
Perform the maintenance listed in the ªMaintenance
Schedulesº section of this manual (Section 8). When
towing a trailer, never exceed the Gross Axle Weight
Rating (GAWR), or Gross Combined Vehicle Weight
(GCVW).
CAUTION!
When hauling cargo or towing a trailer, do not
overload your vehicle or trailer. Overloading can
cause a loss of control, poor performance or damage
to brakes, axle, engine, transmission, steering, sus-
pension, body structure or tires.
Axle Lubricant and Trailer Towing
1500 Models
²
1500 Modelrear axles are trailer tow ready. Limited
slip rear axles on 1500 models require the use of a
limited slip additive (refer to the ªRecommended
Fluids, Lubricants, and Genuine Partsº section.)
²The limited slip additive is included with the factory
fill.
²If the axle fluid is changed, 4 oz. (118 ml) of limited slip
additive must be added.
272 STARTING AND OPERATING