2018 JEEP GRAND CHEROKEE fuel additives

CAUTION!
•To avoid DEF spillage, and possible dam-
age to the DEF tank from overfilling, do
not “top off” the DEF tank after filling.
• DO NOT OVERFILL. DEF will freeze be-
low 12ºF (-11ºC). The DEF system is
designed to work in temperatures below
the DEF freezing point, however, if the
tank is overfilled and freezes, the system
could be damaged.
• When DEF is spilled, clean the area
immediately with water and use an ab-
sorbent material to soak up the spills on
the ground.
• Do not attempt to start your engine if
DEF is accidentally added to the diesel
fuel tank as it can result in severe dam-
age to your engine, including but not
limited to failure of the fuel pump and
injectors.
CAUTION!
• Never add anything other than DEF to
the tank – especially any form of hydro-
carbon such as diesel fuel, fuel system
additives, gasoline, or any other
petroleum-based product. Even a very
small amount of these, less than
100 parts per million or less than 1 oz.
(30 ml) per 78 gallons (295 liters) will
contaminate the entire DEF system and
will require replacement. If owners use a
container, funnel or nozzle when refilling
the tank, it should either be new or one
that is has only been used for adding
DEF. Mopar provides an attachable
nozzle with its DEF for this purpose.3. Stop filling the DEF tank immediately
when any of the following happen: DEF
stops flowing from the fill bottle into the
DEF fill inlet, DEF splashes out the fill
inlet, or a DEF pump nozzle automatically
shuts off.
4. Reinstall cap onto DEF fill inlet.
STARTING AND OPERATING
184

nuts/bolts should be torqued using a properly
calibrated torque wrench using a high quality
six sided (hex) deep wall socket.
Torque Specifications
Base Model Vehicle
Lug Nut/Bolt
Torque**Lug Nut/Bolt
SizeLug Nut/Bolt
Socket Size
130 Ft-Lbs
(176 N·m)M14 x 1.50 22 mm
SRT Model Vehicle
Lug Nut/Bolt
Torque**Lug Nut/Bolt
SizeLug Nut/Bolt
Socket Size
110 Ft-Lbs
(149 N·m)M14 x 1.50 22 mm
**Use only your authorized dealer recom-
mended lug nuts/bolts and clean or remove
any dirt or oil before tightening.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion
or loose particles.Tighten the lug nuts/bolts in a star pattern
until each nut/bolt has been tightened twice.
Ensure that the socket is fully engaged on the
lug nut/bolt (do not insert it half way).
NOTE:
If in doubt about the correct tightness, have
them checked with a torque wrench by your
authorized dealer or service station.
After 25 miles (40 km), check the lug nut/
bolt torque to be sure that all the lug nuts/
bolts are properly seated against the wheel.
WARNING!
To avoid the risk of forcing the vehicle off
the jack, do not tighten the lug nuts fully
until the vehicle has been lowered. Failure
to follow this warning may result in per-
sonal injury.
FUEL REQUIREMENTS —
GASOLINE ENGINES
3.6L Engine
These engines are designed to meet all emis-
sions regulations and provide excellent fuel
economy and performance when using high-
quality unleaded gasoline with a minimum
Research Octane Number (RON) of 91.
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.
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives
Torque Pattern
271

are recommended. Using gasolines that have
these additives may help improve fuel
economy, reduce emissions, and maintain
vehicle performance.
Poor quality gasoline can cause problems
such as hard starting, stalling and stumble. If
you experience these problems, try another
brand of gasoline before considering service
for the vehicle.
5.7L Engine
Theses engines are designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high-quality unleaded gasoline having
an Research Octane Number (RON) of 91 to
95. The manufacturer recommends the use
of a 95 Research Octane Number for opti-
mum 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 hesita-tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
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 may help improve fuel
economy, reduce emissions, and maintain
vehicle performance.
Poor quality gasoline can cause problems
such as hard starting, stalling and stumble. If
you experience these problems, try another
brand of gasoline before considering service
for the vehicle.
6.2L/6.4L Engine
Your vehicle is designed to meet all emissions
regulations and provide excellent fuel
economy and performance when using high-
quality unleaded gasoline having an Re-
search Octane Number (RON) of 98 or
higher. The manufacturer recommends the
use of 98 Research Octane Number (RON) or
higher for optimum 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 hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Methanol
(Methyl) is used in a variety of concentrations
when blended with unleaded gasoline. You
may find fuels containing 3% or more metha-
nol along with other alcohols called cosol-
vents. Problems that result from using
methanol/gasoline are not the responsibility
of the manufacturer. While MTBE is an oxy-
genate made from Methanol, it does not have
the negative effects of Methanol.
WARNING!
Do not use gasolines containing Methanol.
Use of these blends may result in starting
and drivability problems and may damage
critical fuel system components.
TECHNICAL SPECIFICATIONS
272

Accessories..................283
Mopar...................283
Adaptive Cruise Control (ACC) (Cruise
Control)..................165
Off .................166, 168
On..................166, 168
Adding Fuel..............177, 179
Additives, Fuel................273
AirBag ....................110
Air Bag Operation............112
Air Bag Warning Light.........109
Driver Knee Air Bag...........112
Enhanced Accident Response. . . .116
Enhanced Accident Response. . . .228
Event Data Recorder (EDR)......228
Front Air Bag..............110
If Deployment Occurs.........116
Knee Impact Bolsters.........112
Maintaining Your Air Bag System . .117
Maintenance...............117
Redundant Air Bag Warning Light . .110
Side Air Bags..............112
Transporting Pets............130
Air Bag Light...........66, 109, 132
Air Conditioner Maintenance.......249Air Conditioner Refrigerant........249
Air Conditioner System...........249
Air Conditioning Filter.........48, 249
Air Conditioning, Operating Tips......48
Air Conditioning System...........47
Air Pressure
Tires....................256
Alarm
Arm The System...........18, 19
Disarm The System............18
Rearming The System..........19
Security Alarm..............69
Alarm (Security Alarm).........17, 19
Alarm System (Security Alarm).......17
Antifreeze (Engine Coolant). . . .278, 279
Anti-Lock Brake System (ABS).......80
Anti-Lock Warning Light
...........70
Arming System (Security Alarm)
......17
Assist, Hill Start................82
Audio Jack..................309
Auto Down Power Windows.........49
Automatic Door Locks............24
Automatic High Beams...........35
Automatic Temperature Control (ATC) . . .47
Automatic Transmission..........147Adding Fluid..............282
Fluid Type................282
Auto Up Power Windows...........49
Axle Lubrication...............282
Back-Up...................176
Back-Up Camera..............176
Battery..................67, 248
Charging System Light..........67
Belts, Seat..................131
Blind Spot Monitoring............92
Brake Assist System.............81
Brake Control System, Electronic.....81
Brake Fluid..................282
Brake System
Fluid Check...............282
Warning Light...............66
Brake/Transmission Interlock.......146
Break-In Recommendations, New
Vehicle...............143, 144
Bulb Replacement.............198
Bulbs, Light.................133
Camera....................176
Capacities, Fluid...........278, 279
INDEX
357

Exterior Lights................133
Filters
Air Conditioning..............48
Air Conditioning............249
Flashers....................198
Hazard Warning.............198
Turn Signal.............75, 201
Turn Signals...............133
Fluid, Brake.................282
Fluid Capacities...........278, 279
Fluid Leaks..................133
Fluids And Lubricants........280, 282
Fog Lights.................36, 73
Forward Collision Warning..........93
Four-Way Hazard Flasher..........198
Four Wheel Drive...........149, 158
Operation................149
Systems.................149
Four Wheel Drive Operation........149
Freeing A Stuck Vehicle..........222
Front And Rear ParkSense System. . . .172
Front ParkSense System..........172
Fuel...................271, 275
Adding...............177, 179
Additives.................273
Clean Air.................273Diesel...................275
Economy Mode.............146
Ethanol..................272
Gasoline.................271
Light....................71
Materials Added.............273
Octane Rating..............271
Requirements . . .271, 275, 278, 279
Tank Capacity..........278, 279
Fueling.................177, 179
Fuses
....................
.204
Gasoline, Clean Air.............273
Gasoline (Fuel)................271
Gasoline, Reformulated..........273
Glass Cleaning................268
Hands-Free Phone (Uconnect)......321
Hazard Warning Flasher..........198
Headlights
On With Wipers..............36
Passing..................36
Washers..................40
Headlight Washers..............40
Head Restraints................27
Heated Mirrors.................33
Hill Descent Control.............88Hill Descent Control Indicator.......88
Hill Start Assist................82
Hood Release.................53
Instrument Panel Lens Cleaning.....267
Interior Appearance Care..........267
Intermittent Wipers (Delay Wipers)....38
Introduction...................1
Jacking Instructions............210
Jack Location................209
Jack Operation............210, 255
Jump Starting................217
Key Fob
Arm The Alarm..............18
Disarm The Alarm.............18
Programming Additional Key Fobs .14, 17
Key Fob Programming (Remote Keyless
Entry)....................14
Key-In Reminder...............16
Keyless Enter-N-Go..............20
Key, Replacement............14, 17
Keys.......................13
Lane Change Assist..............37
LaneSense..................175
359