2004 DODGE RAM 1500 GAS octane

FUEL REQUIREMENTS
All engines (except 5.7L engines) are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high quality un-
leaded ªregularº gasoline having an oc-
tane rating of 87. The routine use of pre-
mium gasoline is not recommended.
Under normal conditions the use of premium fuel will
not provide a benefit over high quality regular gasolines
and in some circumstances may result in poorer perfor-
mance.
The 5.7L engine is designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high quality unleaded gasoline hav-
ing an octane range of 87 to 89. The manu-
facturer recommends the use of 89 octane
for optimum performance.The routine useof premium gasoline is not recommended. The use of
premium gasoline will provide no benefit over high
quality regular and mid-grade gasolines, and in some
circumstances may result in poorer performance.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required. Engine damage resulting from operation with a
heavy spark knock may not be covered by the new
vehicle warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of ªregularº gasoline be-
fore considering service for the vehicle.
Over 40 auto manufacturers world-wide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) to define fuel properties
necessary to deliver enhanced emissions, performance
All Engines
Except 5.7L
5.7L Engines
256 STARTING AND OPERATING

MMT In Gasoline
MMT is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasolines
blended with MMT provide no performance advantage
beyond gasolines of the same octane number without
MMT. Gasolines blended with MMT reduce spark plug
life and reduce emission system performance. We recom-
mend that gasolines free of MMT be used in your vehicle.
The MMT content of gasoline may not be indicated on
the gasoline pump; therefore, you should ask your gaso-
line retailer whether or not his/her gasoline contains
MMT.
It is even more important to look for gasolines without
MMT in Canada because MMT can be used at levels
higher than allowed in the United States. MMT is pro-
hibited in Federal and California reformulated gasolines.
Sulfur In Gasoline
If you live in the northeast United States, your vehicle
may have been designed to meet California low emission
standards with Cleaner-Burning California reformulated
gasoline with low sulfur. If such fuels are not available in
states adopting California emission standards, your ve-
hicles will operate satisfactorily on fuels meeting federal
specifications, but emission control system performance
may be adversely affected. Gasoline sold outside of
California is permitted to have higher sulfur levels which
may affect the performance of the vehicle's catalytic
converter. This may cause the Check Engine or Service
Engine Soon light to illuminate. We recommend that you
try a different brand of unleaded gasoline having lower
sulfur to determine if the problem is fuel related prior to
returning your vehicle to an authorized dealer for ser-
vice.
258 STARTING AND OPERATING

Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle's
performance:
²The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
damage the emission control system, and could result
in loss of warranty coverage.
²An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
²When pulling a heavy load or driving a fully loaded
vehicle when the humidity is low and the temperature
is high, use a premium unleaded fuel to help prevent
spark knock. If spark knock persists, lighten the load,
or engine piston damage may result.
²The use of fuel additives which are now being sold as
octane enhancers is not recommended. Many of these
products contain high concentrations of methanol.
Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer and may not be
covered under the New Vehicle Warranty.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
STARTING AND OPERATING 261
5

CAUTION!
Only vehicles with the E-85 fuel filler door label can
operate on E-85.
ETHANOL FUEL (E-85)
E-85 is a mixture of approximately 85% fuel ethanol and
15% unleaded gasoline.
WARNING!
Ethanol vapors are extremely flammable and could
cause serious personal injury. Never have any smok-
ing materials lit in or near the vehicle when remov-
ing the fuel filler tube cap (gas cap) or filling the
tank. Do not use E-85 as a cleaning agent and never
use it near an open flame.
Fuel Requirements
Your vehicle will operate on both unleaded gasoline with
an octane rating of 87, or E-85 fuel, or any mixture of
these two.
For best results, a refueling pattern that alternates be-
tween E-85 and unleaded gasoline should be avoided.
When you do switch fuels, it is recommended that
²you do not switch when the fuel gauge indicates less
than 1/4 full
²you do not add less than 5 gallons when refueling
²you operate the vehicle immediately after refueling for
a period of at least 5 minutes
Observing these precautions will avoid possible hard
starting and/or significant deterioration in drivability
during warm up.
STARTING AND OPERATING 263
5

FLUIDS AND CAPACITIES
U.S. Metric
Fuel
3.7L/4.7L, 87 Octane
5.7L, 89 Octane
1500 Shortbed Models 26 gal. 98L
1500 Longbed Models 35 gal. 132L
2500 Shortbed Models 34 gal. 128L
2500 Longbed Models 35 gal. 132L
3500 Shortbed Models 34 gal. 128L
3500 Longbed Models 35 gal. 132L
Engine Oil (with filter)
3.7L Engine V-6, SAE 5W-30, API Certified 5.0 qts. 4.7L
4.7L Engine V-8, SAE 5W-30, API Certified 6.0 qts. 5.7L
5.7L Engine V-8, SAE 5W-30, API Certified 7.0 qts. 6.6L
MAINTAINING YOUR VEHICLE 379
7

RECOMMENDED FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluids, Lubricants and Genuine Parts
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology) P/N 5011764AB or equivalent.
Engine Oil Use SAE 5W-30, API Certified, meeting material standard MS-6395. Refer to
oil viscosity chart for alternative grade.
Engine Oil Filter MopartEngine Oil Filter, P/N 5281090 or equivalent.
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine com-
partment.
Fuel Selection (all except 5.7L) 87 Octane, (R+M)/2 Method
Fuel Selection (5.7L) 89 Octane, (R+M)/2 Method, Mid-Grade Preferred (87 Octane acceptable)
MAINTAINING YOUR VEHICLE 381
7

Exhaust System.......................69,343
Exterior Lighting........................ 101
Filters
Air Cleaner........................334,357
Engine Fuel.......................... 334
Engine Oil........................333,381
Engine Oil Disposal.................... 332
Flashers
Turn Signal.......................... 103
Flat Tire Stowage.....................301,311
Flexible Fuel Vehicles
Cruising Range........................ 265
Engine Oil........................... 264
Fuel Requirements..................262,263
Maintenance.......................... 265
Replacement Parts..................... 265
Starting............................. 265
Flooded Engine Starting................... 206Fluid, Brake........................... 382
Fluid Capacities......................... 379
Fluid Level Checks
Automatic Transmission................. 352
Power Steering........................ 339
Fog Lights..........................102,378
Fold Flat Load Floor..................... 130
Four Wheel Drive....................... 216
Four-Way Hazard Flasher.................. 294
Freeing A Stuck Vehicle................... 316
Front Axle............................. 350
Front Wheel Bearings..................... 355
Fuel................................. 256
Adding............................. 259
Filter............................... 334
Gauge.............................. 150
Octane Rating......................256,381
Requirements......................256,379
Tank Capacity........................ 379
418 INDEX

Lumbar Support......................... 94
Maintenance........................... 327
Maintenance Free Battery.................. 337
Maintenance Procedures................... 327
Maintenance Schedule.................... 384
Schedule9A9......................... 397
Schedule9B9.......................... 387
Malfunction Indicator Light................ 325
Manual, Service......................... 410
Manual Transmission..................213,351
Fluid Level Check...................... 351
Lubricant Selection..................352,382
Shift Speeds.......................214,216
Mirrors................................ 75
Automatic Dimming..................... 76
Electric Powered....................... 77
Outside.............................. 76
Rearview............................. 75Trailer Towing......................79,278
Modifications/Alterations, Vehicle............. 7
Mopar Parts.........................327,409
Multi-Function Control Lever............... 103
Noise Control
Maintenance.......................... 356
Tampering Prohibited................356,357
Noise Emission Warranty.................. 358
Occupant Restraints....................... 33
Octane Rating, Gasoline................... 256
Odometer..........................148,150
Trip .............................148,150
Off-Pavement Driving.................... 291
Off-Road Driving........................ 291
Oil, Engine.........................329,381
Capacity............................ 379
Change Interval....................... 330
422 INDEX