octane DODGE DURANGO SRT 2018 Owners Manual

FUEL REQUIREMENTS
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 emis-
sion regulations, provide optimal fuel
economy and performance when using
high-quality unleaded “Premium” gaso-
line having a posted octane number of
91 as specified by the (R+M)/2 method.
The use of 91 or higher octane “Pre-
mium” 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 immedi-
ately. 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 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”. Reformu-
lated gasoline contains oxygenates and are specifically
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
gasoline is recommended. Visit
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline Retailers.
9
TECHNICAL SPECIFICATIONS 453

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.
(Continued)
CAUTION! (Continued)
•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
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.
9
TECHNICAL SPECIFICATIONS 455

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 Technology) that meets the requirements of
FCA Material Standard MS.90032.
Engine Oil 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 Platinum 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 Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection Premium Unleaded 91 Octane Only or Higher, 0-15% Ethanol (Do not use E-85).
9
TECHNICAL SPECIFICATIONS 457

Fails To Start............................261
Flooded, Starting ........................ .261
Jump Starting .......................... .380
Oil ............................398, 456, 457
Oil Filler Cap .....................395, 398, 399
Oil Filter ...............................400
Oil Selection ........................ .398, 456
Oil Synthetic ............................399
Overheating ............................383
Starting ............................257, 258
Engine Oil Viscosity .....................398, 399
Enhanced Accident Response Feature .........221, 388
Ethanol ................................. .454
Exhaust Gas Cautions ....................248, 456
Exhaust System ........................248, 410
Exterior Lights .......................68, 251, 358
Filters Air Cleaner ............................ .400
Air Conditioning ..................... .96, 402
Engine Oil ..........................400, 457
Engine Oil Disposal .......................400
Flashers .................................352
Hazard Warning ........................ .352
Turn Signals .....................161, 251, 361 Flash-To-Pass
..............................70
Flooded Engine Starting ..................... .261
Fluid, Brake ............................. .458
Fluid Capacities ............................456
Fluid Leaks ...............................252
Fluid Level Checks Brake .................................417
Fluids And Lubricants .......................457
Fog Lights ...............................361
Fog Lights, Service ........................ .361
Fold-Flat Seats .............................40
Folding Rear Seats ..........................50
Forward Collision Warning ....................186
Four -W

ay Hazard Flasher .....................352
Freeing A Stuck Vehicle ..................... .387
Front Axle (Differential) ..................... .419
Fuel ................................... .453
Additives ............................. .453
Clean Air ............................. .453
Economy Mode ..........................268
Ethanol ...............................454
Gasoline ...............................453
Materials Added ........................ .453
Methanol ............................. .454
Octane Rating ........................453, 457
554 INDEX

Modifications/AlterationsVehicle .................................6
Monitor, Tire Pressure System ..................190
Mopar Parts ............................. .547
Multi-Function Control Lever ...................68
Occupant Restraints ........................ .196
Octane Rating, Gasoline (Fuel) ..............453, 457
Oil Change Indicator ........................140
Reset .................................140
Oil, Engine ............................398, 457
Capacity ...............................456
Change Interval ........................ .398
Dipstick ...............................396
Disposal ...............................400
Filter ............................. .400, 457
Filter Disposal .......................... .400
Identification Logo .......................399
Materials Added To .......................399
Pressure Warning Light ....................154
Recommendation .....................398, 456
Synthetic ............................. .399
Viscosity ........................398, 399, 456
Oil Filter, Change ..........................400
Oil Filter, Selection ..........................400 Oil Pressure Light
..........................154
Onboard Diagnostic System ...................162
Opener, Garage Door (Homelink) ...............108
Operating Precautions .......................162
Operator Manual Owner’s Manual ...........................6
Outside Rearview Mirrors .....................65
Overheating, Engine ........................383
Owner’s Manual (Operator Manual) .............548
Paint Care ............................... .444
Parking Brake ............................ .264
ParkSense System, Rear ...................305, 314
Passive Entry ..............................33
Performance ............................. .144
Personalized Main

Menu .....................462
Pets ................................... .247
Placard, Tire And Loading Information ...........426
Power Brakes ............................... .451
Distribution Center (Fuses) ..................363
Door Locks ..............................33
Inverter ...............................126
Liftgate ............................... .104
Mirrors ................................66
558 INDEX