2017 JEEP CHEROKEE fuel additives

CNG And LP Fuel System Modifications
Modifications that allow the engine to run on compressed
natural gas (CNG) or liquid propane (LP) may result in
damage to the engine, emissions, and fuel system compo-
nents. Problems that result from running CNG or LP are
not the responsibility of the manufacturer and may void or
not be covered under the New Vehicle Limited Warranty.
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.
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 Gaso-
line contains a higher level of detergents
to further aide in minimizing engine
and fuel system deposits. When avail-
able, the usage of Top Tier Detergent
gasoline is recommended. Visit
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning agents should be
avoided. Many of these materials intended for gum and
varnish removal may contain active solvents or similar
ingredients. These can harm fuel system gasket and dia-
phragm materials.
516 TECHNICAL SPECIFICATIONS

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 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.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
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.
• 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.
9
TECHNICAL SPECIFICATIONS 517

NOTE:
•Use seasonally adjusted E-85 fuel (ASTM D5798). With
non-seasonally adjusted E-85 fuel, hard starting and
rough idle following start up may be experienced even if
the above recommendations are followed, especially
when the ambient temperature is below 32°F (0°C).
• Some additives used in regular gasoline are not fully
compatible with E-85 and may form deposits in your
engine. To eliminate driveability issues that may be
caused by these deposits, a supplemental gasoline addi-
tive, such as MOPAR Injector Cleanup or Techron may
be used.Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) And Gasoline Vehicles
FFV vehicles operated on E-85 require specially formulated
engine oils. These special requirements are included in
MOPAR engine oils, and in equivalent oils meeting FCA
US Material Standard MS-6395. It is recommended that
engine oils that are API Certified and meet the require-
ments of Material Standard MS-6395 be used. MS-6395
contains additional requirements, developed during exten-
sive fleet testing, to provide additional protection to FCA
US LLC engines.
Starting
The characteristics of E-85 fuel make it unsuitable for use
when ambient temperatures fall below 0°F (-18°C). In the
range of 0°F (-18°C) to 32°F (0°C), an increase in the time it
takes for your engine to start may be experienced, and a
deterioration in driveability (sags and/or hesitations) until
the engine is fully warmed up. These issues may be
improved with the use of seasonally adjusted E-85 fuel.
NOTE: Use of the engine block heater (if equipped) may
improve engine start time when using E-85 fuel when the
ambient temperature is less than 32°F (0°C).9
TECHNICAL SPECIFICATIONS 519

About Your Brakes........................ .512
Adaptive Cruise Control (ACC) (Cruise Control) . . . .293
Adding Engine Coolant (Antifreeze) .............475
Additives, Fuel ........................... .516
AirBag ................................ .217
Advance Front Air Bag ....................217
Air Bag Operation ....................... .219
Air Bag Warning Light .................215, 220
Driver Knee Air Bag ..................... .227
Enhanced Accident Response .............233, 444
Event Data Recorder (EDR) .................444
FrontAirBag ........................217, 220
If A Deployment Occurs ....................232
Knee Impact Bolsters ..................... .227
Maintaining Your Air Bag System .............233
Redundant Air Bag Warning Light ............216
Transporting Pets ....................... .251
Air Bag Light ...................... .143, 215, 253
Air Bag Maintenance ....................... .233
Air Cleaner, Engine (Engine Air Cleaner Filter) ......457
Air Conditioner Maintenance ..................462
Air Conditioning Filter ....................93, 463
Air Conditioning, Operating Tips ................93
Air Conditioning Refrigerant ...............462, 463
Air Conditioning System ...................92, 462 Air Filter
............................... .457
Air Pressure, Tires ......................... .490
Alarm Arm The System ..........................34
Disarm The System ........................35
Alarm (Security Alarm) ....................34, 146
Alarm System (Security Alarm) .................34
All Wheel Drive (AWD) ..................... .278
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ................474, 521
Disposal .............................. .477
Anti-Lock Brake System (ABS) .................168
Anti-Lock Warning Light .....................155
Arming
System (Security Alarm) ................34
Assist, Hill Start .......................... .170
Audio Systems (Radio) ...................... .527
Auto Down Power Windows ...................95
Automatic Door Locks ........................42
Automatic Headlights ........................63
Automatic High Beams .......................66
Automatic Temperature Control (ATC) ............92
Automatic Transaxle ....................... .269
Automatic Transmission ..................271, 481
Adding Fluid .......................... .481
Fluid And Filter Changes ...................481
598 INDEX

Fluid Change.......................... .481
Fluid Level Check .....................479, 480
Fluid Type ............................ .479
Special Additives ........................ .480
Torque Converter ....................... .277
Auto Unlock, Doors .........................42
Auto Up Power Windows .....................96
Auxiliary Electrical Outlet (Power Outlet) .........119
Auxiliary Power Outlet ......................119
Battery .............................. .148, 454
Charging System Light ....................148
Keyless Key Fob Replacement ................22
Belts, Seat ............................... .253
Blind Spot Monitoring ...................... .184
Body Mechanism Lubrication ..................466
B-Pillar Location .......................... .485
Brake Assist System ........................ .170
Brake Control System, Electronic ................169
Brake Fluid .............................. .478
Brake System ......................... .478, 512
Anti-Lock (ABS) ........................ .512
Fluid Check ........................... .478
Master Cylinder ........................ .478Parking
.............................. .264
Warning Light .......................... .144
Brake/Transmission Interlock ..................270
Brightness, Interior Lights .....................68
Bulbs, Light ............................. .255
Camera, Rear ............................ .363
Capacities, Fluid .......................... .521
Caps, Filler Fuel .............................. .365, 435
Oil (Engine) ..................... .451, 452, 456
Radiator (Coolant Pressure) .................476
Carbon Monoxide Warning ................252, 517
Cargo Area Features ....................... .107
Cargo Compartment ....................... .107
Car

go Load Floor ......................... .107
Cargo Tie-Downs .......................... .107
Car Washes .............................. .506
Cellular Phone ........................... .569
Certification Label ......................... .367
Changing A Flat Tire .....................414, 481
Check Engine Light (Malfunction Indicator Light). . . .164
Checking Your Vehicle For Safety ...............252
Checks, Safety ............................ .252
Child Restraint ........................... .234
12
INDEX 599

Exterior Lighting............................63
Exterior Lights ......................... .63, 255
Filters Air Cleaner ............................ .457
Air Conditioning ..................... .93, 463
Engine Oil ............................ .457
Engine Oil Disposal ...................... .457
Flashers Hazard Warning ........................ .391
Turn Signal ...................... .66, 161, 255
Flash-To-Pass ..............................66
Flexible Fuel Vehicles Cruising Range ......................... .520
Engine Oil ............................ .519
Fuel Requirements ....................... .518
Maintenance ........................... .520
Replacement Parts ....................... .520
Starting .............................. .519
Flooded Engine Starting ..................... .262
Floor Console .............................115
Fluid Capacities ........................... .521
Fluid Leaks .............................. .255Fluid Level Checks
Brake ................................ .478
Engine Oil ............................ .453
Fog Lights ................................65
Folding Rear Seat ...........................47
Forward Collision Warning ....................191
Four Wheel Drive ......................... .284
Freeing A Stuck Vehicle ..................... .437
Fuel Additives ............................. .516
Clean Air ............................. .515
Ethanol ........................... .515, 518
Filler Cap (Gas Cap) ..................... .365
Light ................................ .155
Materials Added ........................ .516
Methanol ............................. .515
Tank Capacity .......................... .521
Fuel,

Flexible ............................. .518
Garage Door Opener (HomeLink) ............108, 113
Gas Cap (Fuel Filler Cap) .....................365
Gasoline, Clean Air ........................ .515
Gasoline, Reformulated ..................... .515
Gear Ranges ............................. .272
602 INDEX