2018 DODGE DURANGO exhaust

with all four wheels turning against engine compression
drag. This will permit you to control the vehicle speed and
direction.
When descending mountains or hills, repeated braking can
cause brake fade with loss of braking control. Avoid
repeated heavy braking by downshifting the transmission
whenever possible.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you can
get any problems taken care of right away and have your
vehicle ready when you need it.
•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual. •
Check for accumulations of plants or brush. These things
could be a fire hazard. They might hide damage to fuel
lines, brake hoses, axle pinion seals, and propeller shafts.
• After extended operation in mud, sand, water, or similar
dirty conditions, have the radiator, fan, brake rotors,
wheels, brake linings, and axle yokes inspected and
cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
• If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a wheel
imbalance and freeing the wheels of it will correct the
situation.
364 STARTING AND OPERATING

11. Insert the two long tubes on the plastic protective platein the lug holes of the road wheel. Push the end of the
winch’s cable, spring, steel sleeve and stamped cone
shape wheel plate though the road wheel and protec-
tive plate.
12. Slide the road wheel on the ground using the protec- tive plate until it is directly under the winch and
between the rear bumper and exhaust system heat
shields. Raise the tire by turning the lug wrench on the
winch extension clockwise until it clicks/ratchets three
times to make sure the cable is tight. NOTE:
Double check to ensure the tire is snug against the
underbody of the vehicle. Damage to the winch cable may
result if the vehicle is driven with the tire loose.
CAUTION!
The winch mechanism is designed for use with the
jack wrench extension tool only. Use of air wrench or
power tool may damage the winch.
Installing Winch
Road Wheel Installed In Spare Location
392 IN CASE OF EMERGENCY

SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................409
▫ Maintenance Plan ..................... .410
▫ Heavy Duty Use Of The Vehicle ............413
 ENGINE COMPARTMENT .................414
▫ 3.6L Engine ..........................414
▫ 5.7L Engine ..........................415
▫ Checking Oil Level .....................416
▫ Adding Washer Fluid ...................416
▫ Maintenance-Free Battery .................416
 DEALER SERVICE .......................417
▫ Engine Oil .......................... .418
▫ Engine Oil Filter .......................420
▫ Engine Air Cleaner Filter .................420
▫ Air Conditioner Maintenance ..............420▫
Accessory Drive Belt Inspection ............424
▫ Body Lubrication ..................... .425
▫ Windshield Wiper Blades .................426
▫ Exhaust System ........................430
▫ Cooling System ........................432
▫ Brake System ........................ .436
▫ Automatic Transmission ..................438
▫ Front/Rear Axle Fluid ...................439
▫ Transfer Case ........................ .440
 RAISING THE VEHICLE ..................441
 TIRES ............................... .441
▫ Tire Safety Information ..................441
▫ Tir

es — General Information ..............450
▫ Tire Types ............................456
8

Maintenance Plan
Required Maintenance
Refer to the Maintenance Plans on the following pages for
required maintenance.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns
on.
• Inspect battery and clean and tighten terminals as required.
• Inspect brake pads, shoes, rotors, drums, hoses and park brake.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or off-road conditions.
410 SERVICING AND MAINTENANCE

NOTE:Resistance will be accompanied by an audible
snap.
4. Still grasping the bottom end of the wiper blade, move the wiper blade upward and away from the wiper arm
to disengage.
5. Gently lower the tip of the wiper arm onto the glass. Installing The Rear Wiper
1. Lift the rear wiper arm pivot cap away from the glass to
allow the rear wiper blade to be raised off of the glass.
NOTE: The rear wiper arm cannot be fully raised off the
glass unless the wiper arm pivot cap is unsnapped first.
Attempting to fully raise the rear wiper arm without
unsnapping the wiper arm pivot cap may damage the
vehicle.
2. Lift the rear wiper arm fully off the glass.
3. Insert the wiper blade pivot pin into the opening on the end of the wiper arm. Grab the bottom end of the wiper
arm with one hand, and press the wiper blade flush
with the wiper arm until it snaps into place.
4. Lower the wiper blade onto the glass and snap the wiper arm pivot cap back into place.
Exhaust System
The best protection against carbon monoxide entry into the
vehicle body is a properly maintained engine exhaust
system.
Wiper Blade Removed From Wiper Arm
1—WiperBlade
2 — Wiper Blade Pivot Pin
3—WiperArm
4 — Wiper Arm Receptacle 430 SERVICING AND MAINTENANCE

If you notice a change in the sound of the exhaust system;
or if the exhaust fumes can be detected inside the vehicle;
or when the underside or rear of the vehicle is damaged;
have an authorized technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams or
loose connections could permit exhaust fumes to seep into
the passenger compartment. In addition, have the exhaust
system inspected each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
WARNING!
•Exhaust gases can injure or kill. They contain carbon
monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing CO, refer
to “Safety Tips” in “Safety” for further information.
• A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
CAUTION!
•The catalytic converter requires the use of unleaded
fuel only. Leaded gasoline will destroy the effective-
ness of the catalyst as an emissions control device
and may seriously reduce engine performance and
cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE: Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against
you.
8
SERVICING AND MAINTENANCE 431

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

WARNING!(Continued)
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.
(Continued)
WARNING!(Continued)
•Guard against carbon monoxide with proper main-
tenance. Have the exhaust system inspected every
time the vehicle is raised. Have any abnormal condi-
tions repaired promptly. Until repaired, drive with
all side windows fully open.
FLUID CAPACITIES
U.S. Metric
Fuel (Approximate)
3.6L and 5.7L Engines 24.6 Gallons93.0 Liters
Engine Oil With Filter
3.6L Engine (SAE 0W-20,
API Certified) 6 Quarts
5.6 Liters
5.7L Engine (SAE 5W-20,
API Certified) 7 Quarts
6.6 Liters
9
TECHNICAL SPECIFICATIONS 477