2017 JEEP GRAND CHEROKEE fuel additives

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 Compart-
ment” illustration in this section.
Lubricants which do not have both the engine oil certifi-
cation mark and the correct SAE viscosity grade number
should not be used.
Engine Oil Viscosity (SAE Grade) — 5.7L Engine
MOPAR SAE 5W-20 engine oil approved to FCA Material
Standard MS-6395 such as Pennzoil, Shell Helix or equiva-
lent is recommended for all operating temperatures. 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 Compart-
ment” illustration in this section.
NOTE:Vehicles equipped with a 5.7L engine must use SAE
5W-20 oil. Failure to do so may result in improper opera-
tion of the Fuel Saver Technology. Refer to “Fuel Saver
Technology – If Equipped” in “Starting And Operating” for
further information. Lubricants which do not have both the engine oil certifi-
cation mark and the correct SAE viscosity grade number
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 addi-
tion 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 additives.
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,
indiscriminately discarded, can present a problem to the
8
SERVICING AND MAINTENANCE 451

5.7L 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.
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”. Reformu-
lated gasoline contains oxygenates and are specifically
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 that
have these additives will help improve fuel economy,
reduce emissions, and maintain vehicle performance.
Designated TOP TIER Detergent Gasoline
contains a higher level of detergents to
further aide in minimizing engine and
fuel system deposits. When available, the
usage of Top Tier Detergent gasoline is
recommended. Visit www.toptiergas.com
for a list of TOP TIER Detergent Gasoline
Retailers.
9
TECHNICAL SPECIFICATIONS 507

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.
(Continued)
CAUTION! (Continued)
•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 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.
NOTE: Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.
9
TECHNICAL SPECIFICATIONS 509

About Your Brakes........................ .505
Adaptive Cruise Control (ACC) (Cruise Control) . . . .299
Adding Engine Coolant (Antifreeze) .............468
Adding Fuel ............................. .366
Additives, Fuel ........................... .507
Adjust Forward ................................46
Rearward ...............................46
AirBag ................................ .228
Air Bag Operation ....................... .229
Air Bag Warning Light .....................226
Driver Knee Air Bag ..................... .230
Enhanced Accident Response .............236, 436
Event Data Recorder (EDR) .................437
FrontAirBag .......................... .228
If A Deployment Occurs ....................234
Knee Impact Bolsters ..................... .230
Maintaining Your Air Bag System .............236
Redundant Air Bag Warning Light ............227
Side Air Bags .......................... .230
Transporting Pets ....................... .255
Air Bag Light ...................... .150, 226, 257
Air Bag Maintenance ....................... .236
Air Cleaner, Engine (Engine Air Cleaner Filter) ......452
Air Conditioner Maintenance ..................454 Air Conditioning Filter
.................88, 452, 455
Air Conditioning, Operating Tips ................88
Air Conditioning Refrigerant ...............454, 455
Air Conditioning System ...................87, 454
Air Filter ............................... .452
Air Pressure, Tires ......................... .484
Alarm Arm The System ..........................33
Disarm The System ........................33
Alarm (Security Alarm) ....................32, 152
Alarm System (Security Alarm) .................32
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ................467, 511
Disposal .............................. .470
Anti-Lock

Brake System (ABS) .................180
Anti-Lock Warning Light .....................163
Arming System (Security Alarm) ................32
Assist, Hill Start .......................... .182
Audio Systems (Radio) ...................... .517
Auto Down Power Windows ...................90
Automatic Door Locks ........................39
Automatic Headlights ........................67
Automatic High Beams .......................70
Automatic Temperature Control (ATC) ............87
Automatic Transmission ..................275, 474
616 INDEX

Adding Fluid....................... .474, 514
Fluid And Filter Changes ...................474
Fluid Change .......................... .474
Fluid Level Check .....................472, 473
Fluid Type ......................... .472, 514
Gear Ranges ........................... .277
Special Additives ........................ .473
Auto Unlock, Doors .........................39
Auto Up Power Windows .....................91
Auxiliary Electrical Outlet (Power Outlet) .........122
Auxiliary Power Outlet ..................... .122
Axle Lubrication .......................... .514
Battery .............................. .154, 448
Charging System Light ....................154
Keyless Key Fob Replacement ................22
Belts, Seat ............................... .257
Blind Spot Monitoring ...................... .195
Body Mechanism Lubrication ..................459
B-Pillar Location .......................... .479
Brake Assist System ........................ .182
Brake Control System, Electronic ................181
Brake Fluid .......................... .471, 514
Brake System ......................... .471, 505
Anti-Lock (ABS) ........................ .505Fluid Check
........................ .471, 514
Master Cylinder ........................ .471
Parking .............................. .271
Warning Light .......................... .151
Brake/Transmission Interlock ..................274
Break-In Recommendations, New Vehicle ..........270
Bulb Replacement ......................... .403
Bulbs, Light ............................. .259
Camera, Rear ............................ .364
Capacities, Fluid ...........................511
Caps, Filler Fuel ................................. .428
Oil

(Engine) ........................ .445, 451
Radiator (Coolant Pressure) .................469
Carbon Monoxide Warning ................256, 510
Cargo Area Cover ......................... .107
Cargo Area Features ....................... .105
Cargo Compartment ....................... .105
Light ................................ .106
Cargo Light ............................. .106
Cargo Tie-Downs .......................... .108
Car Washes .............................. .499
Cellular Phone ........................... .587
Certification Label ......................... .369
12
INDEX 617

Starting.............................. .265
Engine Oil Viscosity .....................450, 451
Engine Oil Viscosity Chart ....................450
Enhanced Accident Response Feature .........236, 436
Ethanol ................................. .508
Exhaust Gas Caution .....................256, 510
Exhaust System ....................... .256, 465
Exterior Lights ......................... .66, 259
Filters Air Cleaner ............................ .452
Air Conditioning ...................88, 452, 455
Engine Oil ......................... .452, 512
Engine Oil Disposal ...................... .451
Flashers ................................ .398
Hazard Warning ........................ .398
Turn Signal ..................... .171, 259, 405
Flash-To-Pass ..............................70
Flooded Engine Starting ..................... .267
Fluid, Brake ............................. .514
Fluid Capacities ............................511
Fluid Leaks .............................. .259
Fluid Level Checks Brake ................................ .471
Folding Rear Seat ...........................44 Forward Collision Warning
....................203
Four-Way Hazard Flasher .....................398
Four Wheel Drive ...................... .283, 293
Operation ............................. .283
Systems .............................. .283
Four Wheel Drive Operation ..................283
Freeing A Stuck Vehicle ..................... .432
Front Axle (Differential) ..................... .474
Fuel ................................... .506
Adding .............................. .366
Additives ............................. .507
Clean Air ............................. .507
Economy Mode ......................... .274
Ethanol .............................. .508
Gasoline .............................. .506
Light ................................ .164
Materials

Added........................ .507
Methanol ............................. .508
Octane Rating ....................... .506, 512
Specifications .......................... .512
Tank Capacity ...........................511
Fueling ................................. .366
Garage Door Opener (HomeLink) ............109, 113
Gasoline, Clean Air ........................ .507
620 INDEX