2019 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 an 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 481

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.
482 TECHNICAL SPECIFICATIONS

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 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.
484 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 Technology) meeting the requirements of FCA
Material Standard 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 equivalent. 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 equivalent. 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 487

Oil ...............................426, 486
Oil Filler Cap ....................... .422, 427
Oil Filter .............................. .428
Oil Selection .....................426, 486, 487
Oil Synthetic ........................... .427
Overheating ........................... .404
Starting ........................... .263, 264
Engine Oil Viscosity .....................426, 427
Engine Oil Viscosity Chart .................426, 427
Enhanced Accident Response Feature .........225, 412
Ethanol ................................. .482
Exhaust Gas Cautions ................... .254, 485
Exhaust System ....................... .254, 438
Exterior Lights .......................74, 257, 378
Filters Air Cleaner ............................ .428
Air Conditioning .....................103, 429
Engine Oil ............................ .428
Engine Oil Disposal .......................427
Flashers ................................ .372
Hazard Warning ........................ .372
Turn Signals ..................169, 257, 381, 382
Flash-To-Pass ..............................76
Flooded Engine Starting ..................... .268Fluid Capacities
........................... .486
Fluid Leaks .............................. .257
Fluid Level Checks Brake ................................ .445
Fluids And Lubricants ................... .487, 489
Fog Lights .............................. .381
Fog Lights, Service ........................ .381
Fold-Flat Seats .............................41
Folding Rear Seats ..........................45
Forward Collision Warning ....................191
Four-Way Hazard Flasher .....................372
Freeing A Stuck Vehicle ..................... .408
Front Axle (Differential) ..................... .447
Fuel ................................... .481
Additives ............................. .482
Clean Air............................. .482
Economy

Mode ......................... .274
Ethanol .............................. .482
Gasoline .............................. .481
Materials Added ........................ .482
Methanol ............................. .482
Octane Rating .......................... .481
Requirements ....................... .481, 486
Specifications .......................... .487
Tank Capacity .......................... .486
584 INDEX

Methanol............................... .482
Mirrors ..................................70
Electric Remote ...........................72
Exterior Folding ..........................71
Heated .................................73
Outside ................................71
Rearview ........................... .70, 372
Vanity .................................73
Modifications/Alterations Vehicle .................................6
Monitor, Tire Pressure System ..................194
Mopar Parts ............................. .577
Multi-Function Control Lever ...................74
New Vehicle Break-In Period ..................269
Occupant Restraints ........................ .200
Octane Rating, Gasoline (Fuel) .................481
Oil Change Indicator ....................... .149
Reset ................................ .149
Oil, Engine .............................. .426
Capacity .............................. .486
Change Interval ........................ .426
Dipstick .............................. .424
Disposal .............................. .427Filter
................................ .428
Filter Disposal .......................... .427
Identification Logo .......................426
Materials Added To .......................427
Pressure Warning Light ................... .162
Recommendation .....................426, 486
Synthetic ............................. .427
Viscosity ....................... .426, 427, 486
Oil Filter, Change ......................... .428
Oil Filter, Selection ......................... .428
Oil Pressure Light ......................... .162
Onboard Diagnostic System ...................170
Opener, Garage Door (Homelink) ...............115
Operating Precautions .......................170
Operator Manual Owner’s Manual ....................... 5
,577
Outside Rearview Mirrors .....................71
Overheating, Engine ....................... .404
Paint Care ............................... .472
Parking Brake ............................ .270
ParkSense System, Rear .................. .314, 323
Passive Entry ..............................35
Pets ................................... .253
Pinch Protection .......................... .109
588 INDEX