2018 DODGE DURANGO octane

FUEL REQUIREMENTS
3.6L Engine
Do not use E-85 flex fuel or ethanol blends greater than
15% in this engine.These engines are designed to meet all
emissions regulations and provide opti-
mum fuel economy and performance
when using high quality unleaded
“Regular” gasoline having a posted oc-
tane number of 87 as specified by the
(R+M)/2 method. The use of higher
octane “Premium” gasoline is not required, as it will not
provide any benefit over “Regular” gasoline in these
engines.
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.
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 emis-
sions regulations and provide satisfac-
tory fuel economy and performance
when using high-quality unleaded gaso-
line having an octane range of 87 to 89 as
specified by the (R+M)/2 method. The
use of 89 octane “Plus” gasoline is rec-
ommended 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.
9
TECHNICAL SPECIFICATIONS 473

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 thathave 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
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 dia-
phragm materials.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxygen-
ates such as ethanol.
474 TECHNICAL SPECIFICATIONS

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).
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 War-
ranty.
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. Gaso-
line blended with MMT reduces spark plug life and
reduces emissions system performance in some vehicles.
9
TECHNICAL SPECIFICATIONS 475

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 an authorized dealer for service assistance.
• The use of fuel additives, which are now being sold
as octane enhancers, is not recommended. Most of
(Continued)
CAUTION! (Continued)
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.
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 mon-
oxide 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
(Continued)
476 TECHNICAL SPECIFICATIONS

FLUIDS AND LUBRICANTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10
Year/150,000 Mile Formula OAT (Organic Additive Tech-
nology) meeting the requirements of FCA Material Stan-
dard MS.90032.
Engine Oil – 3.6L Engine We recommend you use API Certified SAE 0W-20 Engine
Oil, meeting the requirements of FCA Material Standard
MS-6395 such as Mopar, Pennzoil, Shell Helix or equiva-
lent. Refer to your engine oil filler cap for correct SAE
grade.
Engine Oil – 5.7L Engine We recommend you use API Certified SAE 5W-20 Engine
Oil, meeting the requirements of FCA Material Standard
MS-6395 such as Mopar, Pennzoil, Shell Helix or equiva-
lent. Refer to your engine oil filler cap for correct SAE
grade.
Engine Oil Filter We recommend you use a Mopar Engine Oil Filter.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 3.6L Engine 87 Octane, 0-15% Ethanol (Do not use E-85).
Fuel Selection – 5.7L Engine 89 Octane Recommended - 87 Octane Acceptable, 0-15%
Ethanol (Do not use E-85).
9
TECHNICAL SPECIFICATIONS 479

Oil Filler Cap........................414, 419
Oil Filter ...............................420
Oil Selection .....................418, 477, 479
Oil Synthetic ............................419
Overheating ............................397
Starting ............................261, 263
Engine Oil Viscosity .....................418, 419
Engine Oil Viscosity Chart .................418, 419
Enhanced Accident Response Feature .........224, 405
Ethanol ................................. .474
Exhaust Gas Cautions ....................253, 476
Exhaust System ........................253, 430
Exterior Lights .......................72, 256, 372
Filters Air Cleaner ............................ .420
Air Conditioning .....................101, 422
Engine Oil ............................ .420
Engine Oil Disposal .......................419
Flashers .................................366
Hazard Warning ........................ .366
Turn Signals ..................166, 256, 374, 375
Flash-To-Pass ..............................74
Flooded Engine Starting ..................... .266
Fluid Capacities ............................477 Fluid Leaks
...............................256
Fluid Level Checks Brake .................................437
Fluids And Lubricants ....................479, 481
Fog Lights ...............................375
Fog Lights, Service ........................ .375
Fold-Flat Seats .............................40
Folding Rear Seats ..........................53
Forward Collision Warning ....................189
Four-Way Hazard Flasher .....................366
Freeing A Stuck Vehicle ..................... .400
Front Axle (Differential) ..................... .439
Fuel ................................... .473
Additives ............................. .474
Clean Air............................. .474
Economy

Mode..........................272
Ethanol ...............................474
Gasoline ...............................473
Materials Added ........................ .474
Methanol ............................. .474
Octane Rating .......................... .473
Requirements ........................473, 477
Specifications .......................... .479
Tank Capacity .......................... .477
Fueling ................................. .339
578 INDEX

Multi-Function Control Lever...................72
New Vehicle Break-In Period ..................268
Occupant Restraints ........................ .199
Octane Rating, Gasoline (Fuel) .................473
Oil Change Indicator ........................147
Reset .................................147
Oil, Engine ...............................418
Capacity ...............................477
Change Interval ........................ .418
Dipstick ...............................416
Disposal ...............................419
Filter .................................420
Filter Disposal .......................... .419
Identification Logo .......................418
Materials Added To .......................419
Pressure Warning Light ....................159
Recommendation .....................418, 477
Synthetic ............................. .419
Viscosity ........................418, 419, 477
Oil Filter, Change ..........................420
Oil Filter, Selection ..........................420
Oil Pressure Light ..........................159
Onboard Diagnostic System ...................167 Opener, Garage Door (Homelink)
...............114
Operating Precautions .......................167
Operator Manual Owner’s Manual ...........................6
Outside Rearview Mirrors .....................69
Overheating, Engine ........................397
Owner’s Manual (Operator Manual) .............572
Paint Care ............................... .464
Parking Brake ............................ .268
ParkSense System, Rear ...................313, 322
Passive Entry ..............................33
Personalized Main Menu .....................485
Pets ................................... .252
Placard, Tire And Loading Information ...........446
Power Brakes ............................... .471
Distribution Center

(Fuses)..................377
Door Locks ..............................32
Inverter ...............................132
Liftgate ............................... .109
Mirrors ................................70
Outlet (Auxiliary Electrical Outlet) ............128
Seats ..................................44
Steering ............................286, 481
582 INDEX