2018 Ram 2500 fuel additives

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 regulations and provide satis-
factory fuel economy and performance
when using high quality unleaded gaso-
line 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 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 consider-
ing 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 specifi-
cally blended to reduce vehicle emissions and improve air
quality.
The use of reformulated gasoline is recommended. Prop-
erly 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 Gaso-
line contains a higher level of detergents
to further aide in minimizing engine
and fuel system deposits. When avail-
able, the usage of Top Tier Detergent
9
TECHNICAL SPECIFICATIONS 597

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. Gaso-
line 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 perfor-
mance and damage the emissions control system.
• 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 service.
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 metha-
nol. Fuel system damage or vehicle performance
problems resulting from the use of such fuels or
additives is not the responsibility of the manufac-
turer and may void or not be covered under the New
Vehicle Limited Warranty.
9
TECHNICAL SPECIFICATIONS 599

WARNING!(Continued)
materials lit or products that can cause spark in or near
the vehicle when removing 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
If your vehicle is E-85 compatible, it will operate on
unleaded gasoline with any octane rating, or solely E-85
fuel, or any mixture of these fuels.
For best results, avoid fueling patterns alternating be-
tween E-85 and unleaded gasoline.
When switching fuel types:
•Add 5 gallons (19 liters) or more when refueling.
• Drive the vehicle immediately after refueling for at least
5 miles (8 km).
Observing these precautions will avoid possible hard start-
ing and/or driveability problems during warm up. NOTE:
•
Use seasonally adjusted E-85 fuel (ASTM D5798). With
non-seasonally adjusted E-85 fuel, hard starting and
rough idle following start up may be experienced even if
the above recommendations are followed, especially
when the ambient temperature is below 32°F (0°C).
• 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 addi-
tive, 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 formulated
engine oils. These special requirements are included in
Mopar engine oils, and in equivalent oils meeting FCA US
Material Standard MS-6395. It is recommended that engine
oils that are API Certified and meet the requirements of
Material Standard MS-6395 be used. MS-6395 contains
additional requirements, developed during extensive fleet
testing, to provide additional protection to FCA US LLC
engines.
9
TECHNICAL SPECIFICATIONS 601

Adding Engine Coolant (Antifreeze).............548
Adding Fuel ............................. .413
Additives, Fuel ............................597
Adjust Down ...............................47, 49
Forward ............................ .47, 48
Rearward ............................47, 48
Up .................................47, 49
Adjustable Pedals ...........................62
Air Bag Air Bag Operation ........................240
Air Bag Warning Light .....................237
Enhanced Accident Response .............250, 514
Event Data Recorder (EDR) .................514
If A Deployment Occurs ....................249
Knee Impact Bolsters ..................... .241
Maintaining Your Air Bag System .............251
Transporting Pets ........................278
Air Bag Light .......................189, 237, 279
Air Bag Maintenance ........................251
Air Cleaner, Engine (Engine Air Cleaner Filter) ......531
Air Conditioner Maintenance ..................533
Air Conditioning ............................86
Air Conditioning Filter ...................105, 534
Air Conditioning, Operating Tips ...............104Air Conditioning Refrigerant
...............533, 534
Air Conditioning System ..................104, 533
Air Filter ............................... .531
Air Pressure, Tires ..........................569
Air Suspension ........................ .344, 350
Alarm, Panic ...............................23
Alarm (Security Alarm) ....................35, 191
Alarm System (Security Alarm) .................35
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ................547, 603
Disposal ...............................549
Anti-Lock Brake System (ABS) .................204
Anti-Lock Warning Light .....................196
Ashtray .................................137
Assist, Hill

Start.......................... .206
Audio Systems (Radio) .......................611
Auto Down Power Windows ..................107
Automatic Door Locks ........................42
Automatic Headlights ........................76
Automatic High Beams .......................75
Automatic Temperature Control (ATC) ...........104
Automatic Transmission ..................299, 556
Adding Fluid ........................554, 556
Fluid And Filter Changes ...................556
Fluid Change .......................... .556
682 INDEX

Starting...............................289
Engine Oil Viscosity .....................529, 530
Engine Oil Viscosity Chart ....................529
Enhanced Accident Response Feature .........250, 514
Entry System, Illuminated .....................83
Ethanol ............................. .598, 600
Exhaust Gas Caution .....................279, 600
Exhaust System ........................279, 545
Exterior Lighting ............................73
Exterior Lights ..........................73, 281
Filters Air Cleaner ............................ .531
Air Conditioning .....................105, 534
Engine Oil ..........................530, 604
Engine Oil Disposal .......................530
Flashers Turn Signal .......................78, 198, 281
Flash-To-Pass ..............................76
Flat Tire Stowage .......................480, 497
Flexible Fuel Vehicles Cruising Range ..........................602
Engine Oil ............................ .601
Fuel Requirements ....................600, 601
Maintenance ............................602 Replacement Parts
........................602
Starting ...............................602
Flooded Engine Starting ..................... .293
Fluid, Brake ............................. .607
Fluid Capacities ............................603
Fluid Leaks ...............................282
Fluid Level Checks Brake .................................552
Power Steering ..........................394
Fluids And Lubricants .......................604
Fog Lights ..........................78, 197, 455
Fold Flat Load Floor ........................128
Folding Rear Seat ...........................44
Four-Way Hazard Flasher .....................447
Four Wheel

Drive ..........................324
Freeing A Stuck Vehicle ..................... .509
Front Axle (Differential) ..................... .556
Fuel ................................... .596
Adding ...............................413
Additives ............................. .597
Clean Air ............................. .597
Ethanol ............................598, 600
Filler Cap (Gas Cap) ..................... .414
Gasoline ...............................596
Light .................................196
686 INDEX