Jeep Grand Cherokee SRT (2018 year). Manual — part 29

Treadwear

The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-half
times as well on the government course as a tire graded
100. The relative performance of tires depends upon the
actual conditions of their use, however, and may depart
significantly from the norm due to variations in driving
habits, service practices, and differences in road charac-
teristics and climate.

Traction Grades

The Traction grades, from highest to lowest, are AA, A,
B, and C. These grades represent the tire’s ability to stop
on wet pavement, as measured under controlled condi-
tions on specified government test surfaces of asphalt
and concrete. A tire marked C may have poor traction
performance.

WARNING!

The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not

(Continued)

WARNING! (Continued)

include acceleration, cornering, hydroplaning, or
peak traction characteristics.

Temperature Grades

The Temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat, when tested under
controlled conditions on a specified indoor laboratory
test wheel.

Sustained high temperature can cause the material of
the tire to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade C
corresponds to a level of performance, which all pas-
senger vehicle tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the laboratory
test wheel, than the minimum required by law.

WARNING!

The temperature grade for this tire is established for
a tire that is properly inflated and not overloaded.

(Continued)

448

SERVICING AND MAINTENANCE

WARNING! (Continued)

Excessive speed, under-inflation, or excessive load-
ing, either separately or in combination, can cause
heat buildup and possible tire failure.

STORING THE VEHICLE

If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to minimize
the drain on your vehicle’s battery:
• Disconnect the negative cable from battery.
• Any time you store your vehicle or keep it out of service

(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes in the
fresh air and high blower setting. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.

BODYWORK

Protection From Atmospheric Agents

Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on

trees and road surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants, road
surfaces on which the vehicle is operated, extreme hot or
cold weather and other extreme conditions will have an
adverse effect on paint, metal trim, and underbody protec-
tion.

The following maintenance recommendations will enable
you to obtain maximum benefit from the corrosion resis-
tance built into your vehicle.

What Causes Corrosion?

Corrosion is the result of deterioration or removal of paint
and protective coatings from your vehicle.

The most common causes are:
• Road salt, dirt and moisture accumulation.
• Stone and gravel impact.
• Insects, tree sap and tar.
• Salt in the air near seacoast localities.
• Atmospheric fallout/industrial pollutants.

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SERVICING AND MAINTENANCE

449

Body And Underbody Maintenance

Cleaning Headlights

Your vehicle is equipped with plastic headlights and fog
lights that are lighter and less susceptible to stone breakage
than glass headlights.

Plastic is not as scratch resistant as glass and therefore
different lens cleaning procedures must be followed.

To minimize the possibility of scratching the lenses and
reducing light output, avoid wiping with a dry cloth. To
remove road dirt, wash with a mild soap solution followed
by rinsing.

Do not use abrasive cleaning components, solvents, steel
wool or other aggressive material to clean the lenses.

Preserving The Bodywork

Washing
• Wash your vehicle regularly. Always wash your vehicle

in the shade using Mopar Car Wash, or a mild car wash
soap, and rinse the panels completely with clear water.

• If insects, tar, or other similar deposits have accumulated

on your vehicle, use Mopar Super Kleen Bug and Tar
Remover to remove.

• Use a high quality cleaner wax, such as Mopar Cleaner

Wax to remove road film, stains and to protect your
paint finish. Take care never to scratch the paint.

• Avoid using abrasive compounds and power buffing

that may diminish the gloss or thin out the paint finish.

CAUTION!

• Do not use abrasive or strong cleaning materials such

as steel wool or scouring powder that will scratch
metal and painted surfaces.

• Use of power washers exceeding 1,200 psi (8,274 kPa)

can result in damage or removal of paint and decals.

Special Care
• If you drive on salted or dusty roads or if you drive near

the ocean, hose off the undercarriage at least once a
month.

• It is important that the drain holes in the lower edges of

the doors, rocker panels, and trunk be kept clear and
open.

450

SERVICING AND MAINTENANCE

• If you detect any stone chips or scratches in the paint,

touch them up immediately. The cost of such repairs is
considered the responsibility of the owner.

• If your vehicle is damaged due to a collision or similar

cause that destroys the paint and protective coating,
have your vehicle repaired as soon as possible. The cost
of such repairs is considered the responsibility of the
owner.

• If you carry special cargo such as chemicals, fertilizers,

de-icer salt, etc., be sure that such materials are well
packaged and sealed.

• If a lot of driving is done on gravel roads, consider mud

or stone shields behind each wheel.

• Use Mopar Touch Up Paint on scratches as soon as

possible. Your authorized dealer has touch up paint to
match the color of your vehicle.

INTERIORS

Seats And Fabric Parts

Use Mopar Total Clean to clean fabric upholstery and
carpeting.

WARNING!

Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in closed
areas they may cause respiratory harm.

Seat Belt Maintenance

Do not bleach, dye or clean the belts with chemical solvents
or abrasive cleaners. This will weaken the fabric. Sun
damage can also weaken the fabric.

If the belts need cleaning, use a mild soap solution or
lukewarm water. Do not remove the belts from the vehicle
to wash them. Dry with a soft cloth.

Replace the belts if they appear frayed or worn or if the
buckles do not work properly.

WARNING!

A frayed or torn belt could rip apart in a collision and
leave you with no protection. Inspect the belt system
periodically, checking for cuts, frays, or loose parts.
Damaged parts must be replaced immediately. Do not
disassemble or modify the system. Seat belt assemblies

(Continued)

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SERVICING AND MAINTENANCE

451

WARNING! (Continued)

must be replaced after a collision if they have been
damaged (i.e., bent retractor, torn webbing, etc.).

Plastic And Coated Parts

Use Mopar Total Clean to clean vinyl upholstery.

CAUTION!

• Direct contact of air fresheners, insect repellents,

suntan lotions, or hand sanitizers to the plastic,
painted, or decorated surfaces of the interior may
cause permanent damage. Wipe away immediately.

• Damage caused by these type of products may not be

covered by your New Vehicle Limited Warranty.

Cleaning Plastic Instrument Cluster Lenses

The lenses in front of the instruments in this vehicle are
molded in clear plastic. When cleaning the lenses, care
must be taken to avoid scratching the plastic.

1. Clean with a wet soft cloth. A mild soap solution may be

used, but do not use high alcohol content or abrasive
cleaners. If soap is used, wipe clean with a clean damp
cloth.

2. Dry with a soft cloth.

Leather Parts

Mopar Total Clean is specifically recommended for leather
upholstery.

Your leather upholstery can be best preserved by regular
cleaning with a damp soft cloth. Small particles of dirt can
act as an abrasive and damage the leather upholstery and
should be removed promptly with a damp cloth. Stubborn
soils can be removed easily with a soft cloth and Mopar
Total Clean. Care should be taken to avoid soaking your
leather upholstery with any liquid. Please do not use
polishes, oils, cleaning fluids, solvents, detergents, or
ammonia-based cleaners to clean your leather upholstery.
Application of a leather conditioner is not required to
maintain the original condition.

NOTE:

If equipped with light colored leather, it tends to

show any foreign material, dirt, and fabric dye transfer
more so than darker colors. The leather is designed for easy
cleaning, and FCA recommends Mopar total care leather
cleaner applied on a cloth to clean the leather seats as
needed.

452

SERVICING AND MAINTENANCE

CAUTION!

Do not use Alcohol and Alcohol-based and/or Ketone
based cleaning products to clean leather seats, as
damage to the seat may result.

Glass Surfaces

All glass surfaces should be cleaned on a regular basis with
Mopar Glass Cleaner, or any commercial household-type
glass cleaner. Never use an abrasive type cleaner. Use
caution when cleaning the inside rear window equipped
with electric defrosters or windows equipped with radio
antennas. Do not use scrapers or other sharp instruments
that may scratch the elements.

When cleaning the rear view mirror, spray cleaner on the
towel or cloth that you are using. Do not spray cleaner
directly on the mirror.

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SERVICING AND MAINTENANCE

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TECHNICAL SPECIFICATIONS

CONTENTS

䡵 IDENTIFICATION DATA. . . . . . . . . . . . . . . . . . .456

▫ Vehicle Identification Number . . . . . . . . . . . . .456

䡵 BRAKE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . .457
䡵 WHEEL AND TIRE TORQUE SPECIFICATIONS . .457

▫ Torque Specifications . . . . . . . . . . . . . . . . . . . .457

䡵 FUEL REQUIREMENTS. . . . . . . . . . . . . . . . . . . .459

▫ 6.2L Supercharged And 6.4L Engine . . . . . . . . . .459
▫ Reformulated Gasoline . . . . . . . . . . . . . . . . . .459
▫ Materials Added To Fuel . . . . . . . . . . . . . . . . .459
▫ Gasoline/Oxygenate Blends . . . . . . . . . . . . . . .460

▫ Do Not Use E-85 In Non-Flex Fuel Vehicles . . . .460
▫ CNG And LP Fuel System Modifications . . . . . .460
▫ MMT In Gasoline. . . . . . . . . . . . . . . . . . . . . . .461
▫ Fuel System Cautions . . . . . . . . . . . . . . . . . . . .461
▫ Carbon Monoxide Warnings . . . . . . . . . . . . . . .462

䡵 FLUID CAPACITIES . . . . . . . . . . . . . . . . . . . . . .462
䡵 FLUIDS AND LUBRICANTS . . . . . . . . . . . . . . . .463

▫ Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .463
▫ Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . .465

9

IDENTIFICATION DATA

Vehicle Identification Number

The Vehicle Identification Number (VIN) is found on a
label located on the left front corner of the instrument panel
pad, visible from outside of the vehicle through the wind-
shield. This number also is stamped on the right front floor,
behind the right front seat. Move the right front seat
forward to allow better viewing of the stamped VIN. This
number also appears on the Automobile Information Dis-
closure Label affixed to a window on your vehicle. Save
this label for a convenient record of your vehicle identifi-
cation number and optional equipment.

VIN Location

456

TECHNICAL SPECIFICATIONS

NOTE:

It is illegal to remove or alter the VIN.

BRAKE SYSTEM

Your vehicle is equipped with dual hydraulic brake sys-
tems. If either of the two hydraulic systems loses normal
capability, the remaining system will still function. How-
ever, there will be some loss of overall braking effective-
ness. You may notice increased pedal travel during appli-
cation, greater pedal force required to slow or stop, and
potential activation of the “Brake System Warning Light.”

In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off) the brakes
will still function. However, the effort required to brake the
vehicle will be much greater than that required with the
power system operating.

NOTE:

Due to the performance nature of our brake sys-

tems, some noise is to be expected.

WHEEL AND TIRE TORQUE SPECIFICATIONS

Proper lug nut/bolt torque is very important to ensure that
the wheel is properly mounted to the vehicle. Any time a
wheel has been removed and reinstalled on the vehicle, the
lug nuts/bolts should be torqued using a properly cali-
brated torque wrench using a high quality six sided (hex)
deep wall socket.

Torque Specifications

Lug Nut/Bolt Torque

**Lug Nut/

Bolt Size

Lug Nut/Bolt

Socket Size

110 Ft-Lbs (149 N·m)

M14 x 1.50

22 mm

**Use only your authorized dealer recommended lug nuts/
bolts and clean or remove any dirt or oil before tightening.

Right Front Body VIN Location

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TECHNICAL SPECIFICATIONS

457

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
personal injury.

Wheel Mounting Surface

Torque Patterns

458

TECHNICAL SPECIFICATIONS

FUEL REQUIREMENTS

6.2L Supercharged And 6.4L Engine

Do not use E-85 flex fuel or ethanol blends greater than
15% in this engine.

These engines are designed to meet all
emissions regulations, provide optimal
fuel economy and performance when us-
ing high-quality unleaded “Premium”
gasoline having a posted octane number
of 91 as specified by the (R+M)/2
method. The use of 91 or higher octane

“Premium” gasoline is required in these engines.

While operating on gasoline with the required octane
number, 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 immedi-
ately. Use of gasoline with a lower than recommended
octane number 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 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.

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TECHNICAL SPECIFICATIONS

459

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.

Gasoline/Oxygenate Blends

Some fuel suppliers blend unleaded gasoline with oxygen-
ates such as ethanol.

CAUTION!

DO NOT use E-85, gasoline containing methanol, or
gasoline containing more than 15% ethanol (E-15). Use
of these blends may result in starting and drivability
problems, damage critical fuel system components,
cause emissions to exceed the applicable standard,
and/or cause the “Malfunction Indicator Light” to
illuminate. Please observe pump labels as they should
clearly communicate if a fuel contains greater than 15%
ethanol (E-15).

Problems that result from using gasoline containing more
than 15% ethanol (E-15) or gasoline containing methanol are
not the responsibility of the manufacturer and may void or
not be covered under New Vehicle Limited Warranty.

Do Not Use E-85 In Non-Flex Fuel Vehicles

Non-Flex Fuel Vehicles (FFV) are compatible with gasoline
containing up to 15% ethanol (E-15). Use of gasoline with
higher ethanol content may void the New Vehicle Limited
Warranty.

If a Non-FFV vehicle is inadvertently fueled with E-85 fuel,
the engine will have some or all of these symptoms:
• Operate in a lean mode.
• OBD II “Malfunction Indicator Light” on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion.

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.

460

TECHNICAL SPECIFICATIONS

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. Gasoline 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.

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TECHNICAL SPECIFICATIONS

461

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

(Continued)

WARNING! (Continued)

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.

FLUID CAPACITIES

U.S.

Metric

Fuel (Approximate)

24.6 Gallons

93.0 Liters

Engine Oil With Filter
6.2 Liter Engine (SAE 0W-40, Synthetic API Certified, MS-12633)

8.3 Quarts

7.8 Liters

6.4 Liter Engine (SAE 0W-40, Synthetic API Certified, MS-12633)

7 Quarts

6.6 Liters

Cooling System*
6.2L Engine (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile
Formula that meets the requirements of FCA Material Standard
MS.90032.)

14.7 Quarts

13.9 Liters

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TECHNICAL SPECIFICATIONS

U.S.

Metric

6.2L Engine Intercooler (Mopar Antifreeze/Engine Coolant 10 Year/
150,000 Mile Formula that meets the requirements of FCA Material
Standard MS.90032.)

4.0 Quarts

3.9 Liters

6.4 Liter Engine (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile
Formula that meets the requirements of FCA Material Standard
MS.90032.)

16 Quarts

15.5 Liters

* Includes heater and coolant recovery bottle filled to MAX level.

FLUIDS AND LUBRICANTS

Engine

Component

Fluid, Lubricant or Genuine Part

Engine/Intercooler Coolant

We recommend you use Mopar Antifreeze/Coolant 10
Year/150,000 Mile Formula OAT (Organic Additive Tech-
nology) that meets the requirements of FCA Material
Standard MS.90032.

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TECHNICAL SPECIFICATIONS

463