2007 DODGE DURANGO octane

FUEL REQUIREMENTS
All engines (except 5.7L engines) are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high quality un-
leaded “regular” gasoline having an oc-
tane rating of 87. The routine use of pre-
mium gasoline is not recommended. Under normal
conditions the use of premium fuel will not provide a
benefit over high quality regular gasolines and in some
circumstances may result in poorer performance.
The 5.7L engine is designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high quality unleaded gasoline hav-
ing an octane range of 87 to 89. The manu-
facturer recommends the use of 89 octane
for optimum performance.The routine use of premium
gasoline is not recommended. The use of premiumgasoline will provide no benefit over high quality regular
and mid-grade gasolines, and in some circumstances
may result in poorer performance.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of “regular” gasoline be-
fore considering service for the vehicle.
Over 40 auto manufacturers world-wide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) to define fuel properties
necessary to deliver enhanced emissions, performance
and durability for your vehicle. We recommend the use
of gasolines that meet the WWFC specifications if they
are available.
310 STARTING AND OPERATING

MMT In Gasoline
MMT is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasolines
blended with MMT provide no performance advantage
beyond gasolines of the same octane number without
MMT. Gasolines blended with MMT reduce spark plug
life and reduce emission system performance. We recom-
mend that gasolines free of MMT be used in your vehicle.
The MMT content of gasoline may not be indicated on
the gasoline pump; therefore, you should ask your gaso-
line retailer whether or not his/her gasoline contains
MMT.It is even more important to look for gasolines without
MMT in Canada because MMT can be used at levels
higher than allowed in the United States. MMT is pro-
hibited in Federal and California reformulated gasolines.
Materials Added To Fuel
All gasolines sold in the United States are required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and would result in unnecessary cost. There-
fore, you should not have to add anything to the fuel.
312 STARTING AND OPERATING

Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s performance:
•The use of leaded gas is prohibited by Federal law. Using
leaded gasoline can impair engine performance, damage the
emission 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 dealer for service assistance.
•When pulling a heavy load or driving a fully loaded vehicle
when the humidity is low and the temperature is high, use a
premium unleaded fuel to help prevent spark knock. If spark
knock persists, lighten the load, or engine piston damage may
result.
•The use of fuel additives which are now being sold as octane
enhancers is not recommended. Many of these products con-
tain high concentrations of methanol. Fuel system damage or
vehicle performance problems resulting from the use of such
fuels or additives is not the responsibility of the manufacturer.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
STARTING AND OPERATING 313
5

Fuel Requirements
Your vehicle will operate on both unleaded gasoline with
an octane rating of 87, or E-85 fuel, or any mixture of
these two.
For best results, a refueling pattern that alternates be-
tween E-85 and unleaded gasoline should be avoided.
When you do switch fuels, it is recommended that
•you do not switch when the fuel gauge indicates less
than 1/4 full
•you do not add less than 5 gallons when refueling
•you operate the vehicle immediately after refueling for
a period of at least 5 minutes
Observing these precautions will avoid possible hard
starting and/or significant deterioration in drivability
during warm up.NOTE:When the ambient temperature is above 90°F,
you may experience hard starting and rough idle follow-
ing start up even if the above recommendations are
followed.
Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) and Gasoline Vehicles
Whether operating the vehicle on an E-85 ethanol fuel or
unleaded gasoline the engine oil requirements are the
same. Refer to the “Maintenance Procedures” section of
this manual for the proper quality and viscosity engine
oil.
Starting
The characteristics of E-85 fuel make it unsuitable for use
when ambient temperatures fall below 0°F. In the range
of 0°F to 32°F, you may experience an increase in the time
it takes for your engine to start, and a deterioration in
drivability (sags and/or hesitations) until the engine is
fully warmed up.
318 STARTING AND OPERATING

FLUIDS AND CAPACITIES
U.S. Metric
Fuel
3.7L/4.7L, 87 Octane 27 Gal. 102L
5.7L, 89 Octane 27 Gal 102L
Engine Oil (with filter)
3.7L, SAE 5W-20, API Certified 5 Qt. 4.7L
4.7L, SAE 5W-20, API Certified 6 Qt. 5.7L
5.7L, SAE 5W-20, API Certified 7 Qt. 6.6L
Cooling System (includes 2.1 Qts./2L for coolant bottle
3.7L without Rear Heat (MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula) 13.5 Qt. 12.9L
3.7L with Rear Heat (MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula) 14.5 Qt. 13.8L
4.7L without Rear Heat (MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula) 13.1 Qt. 12.5L
4.7L with Rear Heat (MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula) 14.2 Qt. 13.5L
5.7L without Rear Heat (MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula) NA NA
5.7L with Rear Heat (MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula) 16.6 Qt. 15.8L
NOTE:All fluid capacities are approximate.
MAINTAINING YOUR VEHICLE 417
7

FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluids, Lubricants and Genuine Parts
Engine Coolant MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology) or equivalent.
3.7/4.7L Engine Oil Use SAE 5W-20, API Certified, meeting material standard MS-6395 or equiva-
lent.
5.7L Engine Oil Use SAE 5W-20, API Certified, meeting material standard MS-6395 or equiva-
lent.
Engine Oil Filter MoparEngine Oil Filter, P/N 5281090 or equivalent.
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine com-
partment.
Fuel Selection 3.7L/4.7L 87 Octane, (R+M)/2 Method
Fuel Selection 5.7L 89 Octane, (R+M)/2 Method
418 MAINTAINING YOUR VEHICLE

Flashers
Hazard Warning....................... 344
Turn Signal.....................135,185,409
Flat Tire Stowage.....................346,352
Flexible Fuel Vehicles
Cruising Range........................ 319
Engine Oil........................... 318
Fuel Requirements..................317,318
Maintenance.......................... 319
Replacement Parts..................... 319
Starting............................. 318
Flooded Engine Starting................... 252
Floor Console.......................172,174
Fluid, Brake.........................387,419
Fluid Capacities......................... 417
Fluid Level Checks
Automatic Transmission................. 389
Brake............................... 387
Engine Oil........................... 367Power Steering........................ 377
Transfer Case......................... 391
Fluids, Lubricants and Genuine Parts.......... 418
Fog Lights..........................135,415
Folding Rear Seat..................... 117,120
Four Wheel Drive....................... 259
Operation........................... 259
Four-Way Hazard Flasher.................. 344
Freeing A Stuck Vehicle................... 284
FrontAxle(Differential) ................... 392
Fuel................................. 310
Filler Cap (Gas Cap).................... 314
Filter ............................... 372
Gauge.............................. 185
Octane Rating......................310,418
Requirements......................310,417
Tank Capacity........................ 417
Fuel, Flexible.............See Flexible Fuel Vehicles
Fuel System Caution..................... 316
INDEX 463
10

Rearview............................. 79
Vanity ............................... 83
Modifications/Alterations, Vehicle............. 8
Monitor, Tire Pressure System............... 306
Mopar Parts.........................365,451
Multi-Displacement Engine System........... 283
Multi-Function Control Lever............... 135
Navigation Radio........................ 219
Navigation System....................... 219
New Vehicle Break-In Period................ 71
Occupant Classification System (OCS).......... 55
Occupant Restraints....................... 38
Octane Rating, Gasoline (Fuel).............. 310
Oil, Engine.........................367,418
Capacity............................ 417
Change Interval....................... 368
Dipstick............................. 367Disposal............................ 370
Filter ............................370,418
Filter Disposal........................ 370
Identification Logo..................... 369
Materials Added to..................... 370
Recommendation...................369,417
Synthetic............................ 370
Viscosity..........................369,417
Onboard Diagnostic System..............363,364
Opener, Garage Door (HomeLink) ........... 160
Outside Rearview Mirrors.................. 81
Overdrive..........................189,257
Overdrive OFF Switch.................... 257
Overhead Console....................150,151
Overheating, Engine...................... 187
Owner’s Manual (Operator Manual).......... 452
Panic Alarm............................ 22
Parking Brake.......................... 269
468 INDEX