2015 Ram 1500 octane

General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference received,
including interference that may cause undesired op-
eration.
The TPM sensors are regulated under one of the follow-
ing licenses:
United StatesGQ4-61T
Canada1470A-42T
FUEL REQUIREMENTS
3.6L Engine
These engines are designed to meet all
emissions regulations and provide excel-
lent fuel economy and performance when
using high quality unleaded “regular”
gasoline having an octane rating of 87. The
use of premium gasoline is not recommended, as it will
not provide any benefit over regular gasoline in these
engines.
634 STARTING AND OPERATING

5.7L/6.4L Engines
This engine is designed to meet all emis-
sions regulations and provide satisfactory
fuel economy and performance when us-
ing high quality unleaded gasoline having
an octane range of 87 to 89. The manufac-
turer recommends the use of 89 octane for optimum
performance. The use of premium gasoline (Over 89
octane) is not recommended, as it will not provide any
benefit over regular gasoline in these engines.
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. Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
Over 40 auto manufacturer’s world wide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) which define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasolines that meet the WWFC speci-
fications, if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline.”
Reformulated gasoline contain oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The manufacturer supports the use of reformulated gaso-
line. Properly blended reformulated gasoline will pro-
vide excellent performance and durability of engine and
fuel system components.
5
STARTING AND OPERATING 635

•Change the engine oil and oil filter.
•Disconnect and reconnect the battery to reset the
engine controller memory.
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT)
is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emissions system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. MMT is prohibited in Federal
and California reformulated gasoline.
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and they would result in additional cost.
Therefore, you should not have to add anything to the
fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine perfor-
mance and damage the emissions control system.
(Continued)
5
STARTING AND OPERATING 637

CAUTION!(Continued)
•An 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 ser-
vice. Contact your authorized dealer for service
assistance.
•The use of fuel additives, which are now being
sold as octane enhancers, is not recommended.
Most of these products contain high concentrations
of methanol. Fuel system damage or vehicle perfor-
mance problems resulting from the use of such
fuels or additives is not the responsibility of the
manufacturer.
NOTE:Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas, which can
kill. Never run the engine in a closed area, such as
a garage, and never sit in a parked vehicle with the
engine running for an extended period. If the
vehicle is stopped in an open area with the engine
running for more than a short period, adjust the
ventilation system to force fresh, outside air into
the vehicle.
(Continued)
638 STARTING AND OPERATING

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 between E-85 and unleaded gasoline should be
avoided.
When you do switch fuel types it is recommended that:
•You do not add less than 5 gallons (19 Liters) when
refueling.
•You 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 driveability
during warm up.
NOTE:
•When the ambient temperature is above 90° F (32° C),
you may experience hard starting and rough idle
following start up even if the above recommendations
are followed.
•Some additives used in regular gasoline are not fully
compatible with E-85 and may form deposits in your
engine. To eliminate driveability issues that may be
caused by these deposits, a supplemental gasoline
additive, such as MOPAR® Injector Cleanup or
Techron may be used.
Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) And Gasoline Vehicles
FFV vehicles operated on E-85 require specially formu-
lated engine oils. These special requirements are included
in MOPAR® engine oils, and in equivalent oils meeting
Chrysler Specification MS-6395. The manufacturer only
5
STARTING AND OPERATING 641

ComponentFluid, Lubricant, or Genuine Part
Engine Oil – 5.7L Engine 2500/3500
trucks operating under a gross com-
bined weight ratinggreaterthan 14,000
lbs/(6,350 kg.)
We recommend you use API Certified SAE 5W-30 Engine Oil, meeting
the requirements of Chrysler Material Standard MS-6395 such as
MOPAR®, Pennzoil®, Shell Helix® or equivalent. Refer to your engine
oil filler cap for correct SAE grade.
Engine Oil – 6.4LFor best performance and maximum protection under all types of
operating conditions, the manufacturer only recommends full synthetic
engine oils that meet the American Petroleum Institute (API) categories
of SN. The manufacturer recommends the use of Pennzoil Ultra™
0W-40 or equivalent MOPAR® engine oil meeting the requirements of
Chrysler Material Standard MS-12633 for use in all operating tempera-
tures.
Engine Oil FilterWe recommend you use MOPAR® brand Engine Oil Filters.
Spark PlugsWe recommend you use MOPAR® Spark Plugs.
Fuel Selection – 3.6L Engine87 Octane.
Fuel Selection – 5.7L/6.4L Engines 87 Octane Acceptable - 89 Octane Recommended.
822 MAINTAINING YOUR VEHICLE

Flooded Engine Starting....................451
Fluid, Brake.............................824
Fluid Capacities..........................819
Fluid Leaks.............................118
Fluid Level Checks
Brake................................782
Power Steering.........................577
Fluids, Lubricants and Genuine Parts...........821
Fog Lights..............................171
Fold Flat Load Floor.......................247
Four-Way Hazard Flasher...................685
Four Wheel Drive.........................494
Freeing A Stuck Vehicle.....................734
Front Axle (Differential).....................784
Fuel...................................634
Adding..............................643
Additives.............................637
Clean Air.............................635
Ethanol..............................636
Filler Cap (Gas Cap).....................645
Gasoline..............................634
Materials Added........................637
Methanol.............................636
Octane Rating..........................634
Requirements..........................634
Tank Capacity..........................819
Fuel, Flexible............................639
Fuel System Caution.......................644
Fuses..................................797
Garage Door Opener (HomeLink®)............214
Gas Cap (Fuel Filler Cap)...................645
Gasoline, Clean Air........................635
Gasoline (Fuel)...........................634
Gasoline, Reformulated.....................635
Gauges
Speedometer..........................294
Tachometer............................289
854 INDEX

Multi-Function Control Lever.................176
Navigation System (Uconnect® gps)............210
New Vehicle Break-In Period.................113
Occupant Restraints........................50
Octane Rating, Gasoline (Fuel)................634
Off-Pavement Driving (Off-Road)..............533
Off-Road Driving (Off-Pavement)..............533
Oil, Engine..............................755
Capacity.............................819
Change Interval........................756
Dipstick..............................755
Disposal..............................758
Filter................................758
Filter Disposal.........................758
Identification Logo......................756
Recommendation.......................756
Synthetic.............................758
Viscosity.............................757
Oil Filter, Selection........................758
Onboard Diagnostic System..................751
Operating Precautions......................751
Operator Manual (Owner’s Manual).............4
Outside Rearview Mirrors...................134
Overdrive...............................480
Overdrive OFF Switch......................480
Overhead Console.........................212
Overheating, Engine.......................298
Owner’s Manual (Operator Manual).............4
Paint Care..............................790
Panic Alarm..............................28
Parking Brake............................578
ParkSense® System, Rear....................191
Passing Light............................177
Passive Entry.............................42
Pedals, Adjustable.........................18510
INDEX 859