2020 Ram 3500 octane

454TECHNICAL SPECIFICATIONS
FUEL REQUIREMENTS — GAS ENGINE
6.4L ENGINE
Do not use E-85 flex fuel or ethanol blends
greater than 15% in this engine.
This engine is designed to meet all
emissions regulations and provide
satisfactory fuel economy and
performance when using high quality
unleaded gasoline having a posted octane
number range of 87 to 89 as specified by the
(R+M)/2 method. The use of 89 octane “Plus”
gasoline is recommended for optimum
performance and fuel economy.
While operating on gasoline with an octane
number of 87, hearing a light knocking sound
from the engine is not a cause for concern.
However, if the engine is heard making a heavy
knocking sound, see dealer immediately. Use of
gasoline with an octane number lower than 87
can cause engine failure and may void or not be
covered by the New Vehicle Limited Warranty.
Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you
experience these symptoms, try another brand
of gasoline before considering service for the
vehicle.
REFORMULATED GASOLINE
Many areas of the country require the use of
cleaner burning gasoline referred to as
“Reformulated Gasoline”. Reformulated
gasoline contains oxygenates and are
specifically blended to reduce vehicle
emissions and improve air quality.
The use of reformulated gasoline is
recommended. Properly blended reformulated
gasoline will provide improved performance
and durability of engine and fuel system
components.
MATERIALS ADDED TO FUEL
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives are
recommended. Using gasolines that have these
additives will help improve fuel economy,
reduce emissions, and maintain vehicle
performance.
Designated TOP TIER Detergent
Gasoline contains a higher level of
detergents to further aide in
minimizing engine and fuel system
deposits. When available, the usage of TOP
TIER Detergent gasoline is recommended. Visit www.toptiergas.com for a list of TOP TIER
Detergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish
removal may contain active solvents or similar
ingredients. These can harm fuel system gasket
and diaphragm materials.
GASOLINE/OXYGENATE BLENDS
Some fuel suppliers blend unleaded gasoline
with oxygenates such as ethanol.
CAUTION!
DO NOT use E-85, gasoline containing
methanol, or gasoline containing more than
15% ethanol (E-15). Use of these blends may
result in starting and drivability problems,
damage critical fuel system components,
cause emissions to exceed the applicable
standard, and/or cause the Malfunction
Indicator Light to illuminate. Please observe
pump labels as they should clearly
communicate if a fuel contains greater than
15% ethanol (E-15).

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TECHNICAL SPECIFICATIONS455
Problems that result from using gasoline
containing more than 15% ethanol (E-15) or
gasoline containing methanol are not the
responsibility of the manufacturer and may void
or not be covered under New Vehicle Limited
Warranty.
DO NOT USE E-85 IN NON-FLEX FUEL
V
EHICLES
Non-Flex Fuel Vehicles (FFV) are compatible
with gasoline containing up to 15% ethanol
(E-15). Use of gasoline with higher ethanol
content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with
E-85 fuel, the engine will have some or all of
these symptoms:
Operate in a lean mode.
OBD II Malfunction Indicator Light on.
Poor engine performance.
Poor cold start and cold drivability.
Increased risk for fuel system component
corrosion.
CNG AND LP FUEL SYSTEM
M
ODIFICATIONS
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid
Propane (LP) may result in damage to the
engine, emissions, and fuel system
components. Problems that result from running
CNG or LP are not the responsibility of the
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
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.
FUEL SYSTEM CAUTIONS
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can
impair engine performance and damage
the emissions control system.
An out-of-tune engine or certain fuel or igni -
tion 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 malfunc -
tioning and may require immediate service.
Contact an 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 responsi -
bility of the manufacturer and may void or
not be covered under the New Vehicle
Limited Warranty.8

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TECHNICAL SPECIFICATIONS461
FLUIDS AND LUBRICANTS — GAS ENGINE
ENGINE
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000
Mile (240,000 km) Formula OAT (Organic Additive Technology).
Engine Oil – 6.4L For 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 FCA Material
Standard MS-12633 for use in all operating temperatures.
Engine Oil Filter We recommend you use Mopar brand Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 6.4L Engines 89 Octane Recommended - 87 Octane Acceptable (R+M)/2, 0-15%
Ethanol (Do not use E-85).
8

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555
Four-Way Hazard Flasher
............................... 346Freeing A Stuck Vehicle................................. 380Front Axle (Differential).................................. 424Fuel..................................................... 454, 456Adding............................................. 319, 320Additives................................................... 454Capacity.................................................... 460Clean Air.................................................... 454Diesel.............................................. 456, 464Ethanol...................................................... 454Filler Cap (Gas Cap)................................... 320Filter.......................................................... 409Gasoline.................................................... 454Light.......................................................... 135Materials Added........................................ 454Methanol................................................... 454Octane Rating................................. 454, 461Requirements........................ 454, 456, 459Specifications............................................ 457Tank Capacity............................................ 459Fueling........................................................... 320Fuses............................................................. 358
G
Garage Door Opener (HomeLink).................... 76Gas Cap (Fuel Filler Cap)............................... 320Gasoline, Clean Air........................................ 454Gasoline, Reformulated................................. 454Gauges Voltage...................................................... 223
Gear Ranges................................................. 240Gear Selector Override................................. 377Glass Cleaning.............................................. 451Gross Axle Weight Rating.............................. 326Gross Vehicle Weight Rating......................... 325GuideBody Builders.............................................. 12GVWR............................................................ 324
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
....................... 343Hazard Warning Flashers.............................. 346Head Restraints............................................... 38Head Rests...................................................... 38Headlights.................................................... 353Automatic High Beam.................................. 49Cleaning................................................... 447High Beam................................................... 49Lights On Reminder..................................... 51Passing........................................................ 50Switch.......................................................... 48Heated Mirrors................................................. 46Heater, Engine Block.................................... 229Hill Descent Control...................................... 149Hill Descent Control Indicator....................... 149Hill Start Assist.............................................. 151HitchesTrailer Towing........................................... 329
Hoisting......................................................... 429HomeLink (Garage Door Opener).....................76Hood Prop........................................................74Hood Release...................................................74Hub Caps...................................................... 374
I
Idle-Up Feature............................................. 226Ignition.............................................................17Switch..........................................................17Illuminated Entry..............................................54In Vehicle HelpVehicle User Guide......................................13Inside Rearview Mirror.................... 42, 43, 346Instrument Cluster............................... 110, 112Descriptions.............................................. 141Display...................................................... 113Engine Oil Reset....................................... 115Instrument Panel Lens Cleaning................... 451Integrated Trailer Brake Control.................... 332Interior Appearance Care.............................. 450Interior Lights...................................................53Intermittent Wipers (Delay Wipers)..................55Intervention Regeneration Strategy..... 125, 413Introduction.....................................................11Inverter Outlet (115V)......................................88iPod/USB/MP3 Control................................. 53811

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557
Manual Park Release
............................................. 378Service...................................................... 551Media Hub..................................................... 538Memory Seat................................................... 31Memory Settings............................................. 31Methanol....................................................... 454Mirrors............................................................. 42Electric Powered......................................... 44Heated........................................................ 46Memory....................................................... 31Outside........................................................ 44Rearview..................................... 42, 43, 346Trailer Towing.............................................. 46Modifications/AlterationsVehicle........................................................ 12Monitor, Tire Pressure System....................... 163Mopar Parts................................................... 550MP3 Control.................................................. 538Multi-Function Control Lever............................ 48
N
Navigation System (Uconnect GPS)............... 309New Vehicle Break-In Period.......................... 230Noise ControlMaintenance............................................. 425Tampering Prohibited................................ 426Noise Emission Warranty..................... 425, 426
O
Occupant Restraints..................................... 172Octane Rating, Gasoline (Fuel)..................... 454Off-Pavement Driving (Off-Road).......... 261, 344Off-Road Driving (Off-Pavement).......... 261, 344Oil Change Indicator..................................... 390Oil Filter, Change.......................................... 403Oil Filter, Selection........................................ 403Oil Pressure Light.......................................... 132Oil Reset....................................................... 115Oil, Engine................................... 401, 461, 464Capacity........................................... 459, 460Change Interval........................................ 401Dipstick.................................................... 399Disposal................................................... 403Filter....................................... 403, 461, 464Filter Disposal........................................... 403Identification Logo.................................... 402Materials Added To.................................. 403Pressure Warning Light............................ 132Recommendation............................ 401, 459Synthetic.................................................. 403Viscosity.......................................... 402, 459Onboard Diagnostic System.......................... 142Operating Precautions.................................. 142Operator ManualOwner's Manual..................................12, 551Outside Rearview Mirrors................................ 44
Overdrive....................................................... 244Overdrive OFF Switch.................................... 244Overheating, Engine...................................... 379
P
Paint Care..................................................... 447Panic Alarm......................................................15Parking Brake............................................... 231ParkSense System, Rear...................... 296, 301Passive Entry....................................................28Pedals, Adjustable...........................................42Perform Service Indicator, Reset.................. 390Pets............................................................... 209Pickup Box................................................90, 92Pinch Protection...............................................73Placard, Tire And Loading Information.......... 433PowerDistribution Center (Fuses)....................... 358Door Locks...................................................27Mirrors.........................................................44Outlet (Auxiliary Electrical Outlet)..........86, 88Seats...........................................................35Side Steps...................................................27Sliding Rear Window....................................71Steering.......................................................44Sunroof........................................................72Windows......................................................7011

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