2016 JEEP WRANGLER fuel cap

rear axle systems (GAWR). Total load must be limited so
GVWR and front and rear GAWR are not exceeded.
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the
driver, all passengers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for in-
creased durability does not necessarily increase the vehi-
cle’s GVWR.
Tire Size
The tire size on the Vehicle Certification Label represents
the actual tire size on your vehicle. Replacement tires
must be equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
542 STARTING AND OPERATING

MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 3.6L ..........595
 ONBOARD DIAGNOSTIC SYSTEM — OBD II . .596
▫ Loose Fuel Filler Cap Message ............596
 EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS .............597
 REPLACEMENT PARTS ..................598
 DEALER SERVICE ..................... .599
 MAINTENANCE PROCEDURES ...........599
▫ Engine Oil ......................... .600
▫ Engine Oil Filter ..................... .603▫
Engine Air Cleaner Filter ................603
▫ Accessory Drive Belt Inspection ...........607
▫ Maintenance-Free Battery ...............609
▫ Air Conditioner Maintenance .............610
▫ Body Lubrication .....................614
▫ Windshield Wiper Blades ...............615
▫ Adding Washer Fluid ..................621
▫ Exhaust System ..................... .622
▫ Cooling System ..................... .624
▫ Brake System ....................... .630
7

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light” (MIL). It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
The vehicle must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose, improp-
erly installed, or damaged. A “gASCAP” message will be
displayed in the odometer. Tighten the gas cap until a
clicking sound is heard. This is an indication that the
gas cap is properly tightened. Press the odometer reset
button to turn the message off. If the problem persists,
596 MAINTAINING YOUR VEHICLE

Engine Oil Viscosity — 3.6L Engine
MOPAR SAE 5W-20 engine oil approved to FCA Material
Standard MS-6395 such as Pennzoil, Shell Helix or
equivalent is recommended for all operating tempera-
tures. This engine oil improves low temperature starting
and vehicle fuel economy.
The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to the “Engine Com-
partment” illustration in this section.
NOTE:MOPAR SAE 5W-30 engine oil approved to FCA
Material Standard MS-6395 such as Pennzoil, Shell Helix
or equivalent may be used when SAE 5W-20 engine oil
meeting MS-6395 is not available.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the recom-
mended maintenance intervals for oil and filter changes
are followed.
Synthetic engine oils which do not have both the engine
oil certification mark and the correct SAE viscosity grade
number should not be used.
Materials Added To Engine Oil
The manufacturer strongly recommends against the ad-
dition of any additives (other than leak detection dyes) to
the engine oil. Engine oil is an engineered product and its
performance may be impaired by supplemental addi-
tives.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
602 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
Two Door Models 18.6 Gallons70 Liters
Four Door Models 22.5 Gallons85 Liters
Engine Oil with Filter
3.6L Engine 6 Quarts5.6 Liters
Cooling System *
3.6L Engine (MOPAR Antifreeze/
Engine Coolant 10 Year/150,000
Mile Formula or equivalent) 10.5 Quarts
9.9 Liters
* Includes coolant recovery bottle filled to MAX level.
7
MAINTAINING YOUR VEHICLE 659

FLUIDS, LUBRICANTS, AND GENUINE PARTS
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) or equivalent meeting the
requirements of FCA Material Standard MS.90032.
Engine Oil We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of FCA Material Standard MS-6395 such as MOPAR, Pennzoil,
and Shell Helix. Refer to your engine oil filler cap for correct SAE grade.
Engine Oil Filter We recommend you use MOPAR Engine Oil Filter or equivalent.
Spark Plugs We recommend you use MOPAR Spark Plugs.
Fuel Selection 87 Octane, 0-15% Ethanol.
660 MAINTAINING YOUR VEHICLE

Caps, FillerFuel ................................ .539
Power Steering ........................ .477
Radiator (Coolant Pressure) ................628
Carbon Monoxide Warning ...............100, 538
Cargo Light ............................ .174
Car Washes ............................ .639
Cellular Phone ...........................115
Center High Mounted Stop Light ..............658
Certification Label ........................ .541
Chains, Tire ............................ .521
Changing A Flat Tire ...................... .573
Chart, Tire Sizing ........................ .500
Check Engine Light (Malfunction Indicator Light) . .597
Checking Your Vehicle For Safety ...............99
Checks, Safety ............................99
Child Restraint ............................75
Child Restraints Booster Seats ...........................79 Child Restraints
.........................75
Child Seat Installation .....................94
How To Stow An Unused ALR Seat Belt ........90
Infants And Child Restraints ................77
Install A LATCH-Compatible Child Restraint ....89
Installing Child Restraints Using The Vehicle Seat
Belt ..................................91
Locating The LATCH Anchorages ............86
Lower Anchors And Tethers For Children .......82
Older Children And Child Restraints ..........78
Seating Positions ........................81
Child Safety Locks .........................42
Clean Air Gasoline ....................... .535
Cleaning Wheels .............................. .641
Climate Control ......................... .415
Clock .......................... .359, 368, 385
Cold Weather Operation ....................435
Compact Disc (CD) Maintenance ..............412
684 INDEX

Fluid Capacities......................... .659
Fluid Leaks ............................ .104
Fluid Level Checks ....................... .638
Engine Oil ........................... .600
Manual Transmission ....................636
Power Steering ........................ .477
Fluids, Lubricants And Genuine Parts ...........660
Fog Lights .......................... .171, 657
Fog Light Service ........................ .657
Fold And Tumble Rear Seat ..................163
Folding Rear Seat ........................ .165
Folding Windshield ....................... .295
Four-Way Hazard Flasher ...................570
Four Wheel Drive ........................ .453
Operation ............................ .453
Shifting ............................. .453
Systems ............................. .453
Four Wheel Drive Operation .................454
Freeing A Stuck Vehicle .....................585 Front Axle (Differential)
.....................638
Fuel .................................. .534
Adding ............................. .539
Additives ............................ .537
Clean Air ............................ .535
Ethanol ............................. .535
Filler Cap (Gas Cap) .....................539
Gasoline ............................. .534
Gauge .............................. .324
Materials Added ....................... .537
Methanol ............................ .535
Octane Rating ..................... .534, 660
Requirements ...................... .534, 659
Specifications ......................... .660
Tank Capacity ......................... .659
Fueling ............................... .539
Fuses ................................. .647
Gas

Cap (Fuel Filler Cap) .............539, 541, 596
688 INDEX