2020 DODGE DURANGO fuel additives

352TECHNICAL SPECIFICATIONS
5.7L 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 an octane 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 considering service for the
vehicle.
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
emission regulations, provide optimal
fuel economy and performance when
using high-quality unleaded
“Premium” gasoline having a posted octane
number of 91 as specified by the (R+M)/
2 method. The use of 91 or higher octane
“Premium” gasoline is required for in this
engine.
While operating on gasoline with the required
octane number, 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 a lower than recommended
octane number 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.

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354TECHNICAL SPECIFICATIONS
(Continued)
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
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties being
assessed against you.
CARBON MONOXIDE WARNINGS
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.
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 maintenance. 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.

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448
INDEX
A
About Your Brakes......................................... 350Adaptive Cruise Control (ACC)
(Cruise Control).............................................. 208Adding Engine Coolant (Antifreeze)............... 322Adding Fuel.................................................... 238Additives, Fuel............................................... 352Adjust
Down.................................................... 38, 39Forward................................................ 38, 39Rearward.............................................. 38, 39Up......................................................... 38, 39Air BagAir Bag Operation...................................... 156Air Bag Warning Light................................ 153Driver Knee Air Bag................................... 157Enhanced Accident Response......... 161, 293Event Data Recorder (EDR)....................... 293If Deployment Occurs................................ 160Knee Impact Bolsters................................ 156Maintaining Your Air Bag System.............. 161Maintenance............................................. 161Redundant Air Bag Warning Light.............154Side Air Bags............................................. 157Transporting Pets...................................... 180Air Bag Light............................... 110, 153, 181
Air Cleaner, Engine (Engine Air Cleaner
Filter)............................................................ 311Air Conditioner Maintenance........................ 313Air Conditioner Refrigerant........................... 313Air Conditioner System................................. 313Air Conditioning................................................ 68Rear............................................................. 66Air Conditioning Filter.................... 70, 311, 314Air Conditioning System................................... 69Air Conditioning, Operating Tips....................... 69Air Filter........................................................ 311Air PressureTires......................................................... 336AlarmArm The System................................... 23, 24Disarm The System..................................... 24Rearm The System...................................... 24Security Alarm.......................................... 113Alarm SystemSecurity Alarm............................................. 23All Wheel Drive (AWD)................................... 199Alterations/ModificationsVehicle......................................................... 11Android Auto................................................. 442Antifreeze (Engine Coolant)........ 322, 355, 356Disposal................................................... 323
Anti-Lock Brake System (ABS)....................... 122Anti-Lock Warning Light................................ 116Apple CarPlay................................................ 442Arming SystemSecurity Alarm.............................................23Assist, Hill Start............................................. 128Audio Settings............................................... 402Audio Systems (Radio).................................. 361Auto Down Power Windows..............................71Automatic Headlights.......................................52Automatic High Beams.....................................51Automatic Temperature Control (ATC)..............69Automatic Transmission....................... 184, 193Adding Fluid..................................... 326, 360Fluid And Filter Change............................. 326Fluid Change............................................. 326Fluid Level Check...................................... 326Fluid Type............................... 326, 358, 360Special Additives...................................... 326Automatic Transmission Limp Home Mode... 197Aux Mode...................................................... 405Auxiliary Driving Systems.............................. 131Auxiliary Electrical Outlet (Power Outlet)..........87Auxiliary Power Outlet......................................87Axle Fluid....................................................... 358Axle Lubrication............................................ 360

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451
Fluid Capacities
................................... 355, 356Fluid Leaks.................................................... 183Fluid Level Checks Brake........................................................ 325Fluid, Brake................................................... 360Fluids And Lubricants................. 357, 358, 359Fog Lights...................................................... 269Fog Lights, Service......................................... 269Fold-Flat Seats................................................. 32Folding Rear Seats.......................................... 34Forward Collision Warning............................. 136Four-Way Hazard Flasher............................... 261Freeing A Stuck Vehicle................................. 289Front Axle (Differential).................................. 327Fuel............................................................... 351Additives................................................... 352Clean Air.................................................... 352Economy Mode.......................................... 192Ethanol...................................................... 353Gasoline.................................................... 351Materials Added........................................ 352Methanol................................................... 353Octane Rating................................. 351, 359Requirements................................. 351, 355Specifications.................................. 357, 359Tank Capacity.................................. 355, 356Fueling........................................................... 238Fuses............................................................. 269
G
Garage Door Opener (HomeLink)..................... 78Gasoline, (Fuel)............................................. 351Gasoline, Clean Air........................................ 352Gasoline, Reformulated................................ 352Gear Ranges................................................. 194Glass Cleaning.............................................. 349Gross Axle Weight Rating.............................. 242Gross Vehicle Weight Rating......................... 241GVWR............................................................ 240
H
Hazard Warning Flashers.............................. 261Head Restraints............................................... 42Headlights.................................................... 268Automatic.................................................... 52Bulb Replacement.................................... 268Cleaning................................................... 346High Beam/Low Beam Select Switch.......... 51Lights On Reminder..................................... 52On With Wipers............................................ 52Passing........................................................ 52Replacing................................................. 268Heated Mirrors................................................. 49Heated Seats................................................... 40Heated Steering Wheel.................................... 47Heater, Engine Block.................................... 188Hill Start Assist.............................................. 128
HitchesTrailer Towing........................................... 243Holder, Cup......................................................86HomeLink (Garage Door Opener).....................78Hood Prop........................................................75Hood Release...................................................75
I
Ignition.............................................................17Key Fob Battery Low Or Dead......................17Key Fob Not Detected..................................17Keyless Ignition...........................................17Keyless Push Button....................................17Push Button Ignition....................................17Switch..........................................................17Immobilizer (Sentry Key)..................................21In Vehicle HelpVehicle User Guide......................................12Inside Rearview Mirror.................... 47, 48, 261Instrument Cluster...................... 95, 96, 97, 98Descriptions.............................................. 118Display.........................................................99Menu Items.............................................. 103Instrument Panel Lens Cleaning................... 348Integrated Trailer Brake Control.................... 249Interior And Instrument Lights.........................54Interior Appearance Care.............................. 348Interior Lights...................................................5411

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