2019 RAM CHASSIS CAB octane

TECHNICAL SPECIFICATIONS 479
The wheel nuts should then be tightened to recommended
torque. Tighten the wheel nuts to final torque in increments.
Progress around the bolt circle, tightening the wheel nut
opposite to the wheel nut just previously tightened until
final torque is achieved.
FUEL REQUIREMENTS
6.4L Engine
Do not use E-85 flex fuel or ethanol blends greater than 15%
in this engine.
This engines is designed to meet all emissions regu -
lations 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 your dealer immediately. Use of gaso -
line 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”. Reformu -
lated 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.WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts/bolts fully until the vehicle has
been lowered. Failure to follow this warning may result
in personal injury.
8

480 TECHNICAL SPECIFICATIONS
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 mini -
mizing engine and fuel system deposits. When avail -
able, 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 oxygen -
ates such as ethanol.
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. 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).

TECHNICAL SPECIFICATIONS 481
(Continued)Do Not Use E-85 In Non-Flex Fuel Vehicles
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 Modifications
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 compo -
nents. 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 gaso -
line 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 perfor -
mance and damage the emissions control system. 8

482 TECHNICAL SPECIFICATIONS
NOTE:
Intentional tampering with the emissions control system can
result in civil penalties being assessed against you. Carbon Monoxide Warnings
• An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic converter to over -
heat. 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 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 performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer and may void or
not be covered under the New Vehicle Limited
Warranty. CAUTION! (Continued)
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.
• Guard against carbon monoxide with proper mainte -
nance. Have the exhaust system inspected every time
the vehicle is raised. Have any abnormal conditions
repaired promptly. Until repaired, drive with all side
windows fully open.

484 TECHNICAL SPECIFICATIONS
FLUIDS AND LUBRICANTS
Engine Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant
10–Year/150,000 Mile Formula OAT (Organic Additive
Technology).
Engine Oil – 6.4L Engine 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 – 6.4L Engine We recommend you use Mopar Engine Oil Filters.
Spark Plugs – 6.4L Engine We recommend you use Mopar Spark Plugs.
Fuel Selection – 6.4L Engine 89 Octane Recommended - 87 Octane Acceptable, 0-15%
Ethanol.

594
Enhanced Accident Response Feature ......................... 212, 409
Entry System, Illuminated ....................................................... 74
Ethanol...................................................................................... 480
Exhaust Gas Cautions .................................................... 240, 482
Exhaust System ............................................................... 240, 431
Exterior Lighting ....................................................................... 66
Exterior Lights ................................................................... 66, 243
F
Filters
Air Cleaner ........................................................................... 420
Air Conditioning ........................................................... 91, 423
Engine Fuel .......................................................................... 484
Engine Oil..................................................................... 419, 484
Engine Oil Disposal ............................................................ 419
Flashers
Turn Signals ........................................................... 70, 157, 243
Flash-To-Pass ............................................................................. 68
Flat Tire Changing .................................................. 390, 444, 461
Flat Tire Stowage .................................................... 396, 444, 461
Fluid Capacities ....................................................................... 483
Fluid Leaks ............................................................................... 243
Fluid Level Checks
Brake ..................................................................................... 438
Power Steering..................................................................... 284
Fluids And Lubricants ........................................................... 484
Fog Lights........................................................................... 70, 377 Fold Flat Load Floor ...............................................................112
Fold-Flat Seats ...........................................................................39
Forward Collision Warning................................................... 174
Four Wheel Drive .................................................................... 272
Four-Way Hazard Flasher .....................................................366
Freeing A Stuck Vehicle .........................................................405
Front Axle (Differential) .........................................................442
Fuel ............................................................................................479
Adding ..................................................................................336
Additives ..............................................................................480
Clean Air...............................................................................479
Ethanol ..................................................................................480
Filler Cap (Gas Cap)............................................................337
Filter ...................................................................................... 484
Gasoline ................................................................................479
Light ...................................................................................... 152
Materials Added ..................................................................480
Methanol...............................................................................480
Octane Rating.......................................................................479
Requirements .......................................................................479
Tank Capacity ......................................................................483
Fuses..........................................................................................380
G
Garage Door Opener (HomeLink) ..........................................97
Gas Cap (Fuel Filler Cap) .......................................................337
Gasoline, Clean Air .................................................................479

598
O
Occupant Restraints................................................................ 187
Octane Rating, Gasoline (Fuel) ............................................. 479
Oil Filter, Change .................................................................... 419
Oil Filter, Selection.................................................................. 419
Oil Pressure Light ................................................................... 148
Oil Reset ................................................................................... 130
Oil, Engine ....................................................................... 418, 484
Capacity ................................................................................ 483
Change Interval ................................................................... 418
Dipstick................................................................................. 416
Disposal ................................................................................ 419
Filter .............................................................................. 419, 484
Filter Disposal ...................................................................... 419
Identification Logo.............................................................. 418
Materials Added To ............................................................ 419
Pressure Warning Light ..................................................... 148
Recommendation ................................................................ 418
Synthetic ............................................................................... 419
Viscosity ............................................................................... 419
Onboard Diagnostic System .................................................. 158
Operating Precautions............................................................ 158
Operator Manual
Owner's Manual ............................................................ 13, 589
Outside Rearview Mirrors ....................................................... 58
Overdrive ................................................................................. 263 Overdrive OFF Switch............................................................263
Overheating, Engine ...............................................................401
P
Paint Care .................................................................................470
Panic Alarm ...............................................................................18
Parking Brake ..........................................................................252
ParkSense System, Rear .................................................309, 317
Passive Entry..............................................................................34
Pedals, Adjustable .....................................................................55
Personalized Main Menu .......................................................487
Pets ............................................................................................240
Placard, Tire And Loading Information ..............................450
Power
Distribution Center (Fuses)................................................381
Door Locks .............................................................................33
Mirrors ....................................................................................59
Outlet (Auxiliary Electrical Outlet) ..........................117, 119
Seats.........................................................................................42
Sliding Rear Window............................................................94
Steering ...................................................................59, 283, 284
Take-Off Adapter ................................................................281
Take-Off Operation .............................................................281
Windows.................................................................................92
Power Seats
Down .......................................................................................42
Forward ..................................................................................42