octane JEEP GRAND CHEROKEE 2017 WK2 / 4.G Owners Manual

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
personal injury.
FUEL REQUIREMENTS
3.6L Engine
This engine is designed to meet all emis-
sions regulations and provide excellent
fuel economy and performance when
using high-quality unleaded “Regular”
gasoline having an octane rating of 87 as
specified by the (R+M)/2 method. The
use of higher octane “Premium” gaso-
line will not provide any benefit over “Regular” gasoline in
these engines.
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.
Torque Patterns
506 TECHNICAL SPECIFICATIONS

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

FLUIDS AND LUBRICANTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use MOPAR Antifreeze/Coolant 10
Year/150,000 Mile Formula OAT (Organic Additive Tech-
nology).
Engine Oil – 3.6L Engine We recommend you use API Certified SAE 0W-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 – 5.7L Engine 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 – 3.6L Engine 87 Octane, 0-15% Ethanol.
Fuel Selection – 5.7L Engine 89 Octane Recommended - 87 Octane Acceptable, 0-15%
Ethanol.
512 TECHNICAL SPECIFICATIONS

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

LocksAuto Unlock .............................39
Child Protection ..........................39
Power Door .............................35
Lubrication, Body ......................... .459
Lug Nuts ............................... .505
Maintenance Free Battery .....................448
Maintenance Schedule ...................... .441
Malfunction Indicator Light (Check Engine) . . . .158, 177
Manual, Service ........................... .614
Marker Lights, Side ........................ .405
Memory Feature (Memory Seat) .................48
Memory Seat ..............................48
Memory Seats And Radio .....................48
Methanol ............................... .508
Mini-Trip Computer ........................ .148
Mirrors ..................................61
Electric Powered ..........................63
Electric Remote ...........................63
Exterior Folding ..........................62
Heated .................................63
Outside ................................62
Rearview ........................... .61, 398
Vanity .................................65 Modifications/Alterations, Vehicle
................7
Monitor, Tire Pressure System ..................206
MOPAR Parts ............................ .613
Multi-Function Control Lever ...................66
New Vehicle Break-In Period ..................270
Occupant Restraints ........................ .212
Octane Rating, Gasoline (Fuel) ..............506, 512
Oil, Engine ........................... .450, 512
Capacity ...............................511
Change Interval ........................ .450
Checking ............................. .448
Disposal .............................. .451
Filter ............................. .452, 512
Filter Disposal .......................... .451
Identification Logo ...................... .450
Materials Added To ...................... .451
Pressure Warning Light ....................153
Recommendation .....................450,

511
Synthetic ............................. .451
Viscosity ....................... .450, 451, 511
Oil Filter, Change ......................... .452
Oil Filter, Selection ......................... .452
Oil Pressure Light ......................... .153
12
INDEX 623