Jeep Wrangler (2023 year). Manual in english

SERVICING AND MAINTENANCE

361

ODY

NDERBODY

AINTENANCE

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.

RESERVING

ODYWORK

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 water.



If insects, tar, or other similar deposits have accumu

lated 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. Use precautions to not scratch the

paint.



Avoid using abrasive compounds and power buffing

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

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.



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. An authorized dealer has touch up paint to

match the color of your vehicle.

Appearance Care For Fabric Top Models

To maintain the appearance of your vehicle's interior trim

and top, follow these precautions:



Do not run a fabric top through an automatic car wash.

Window scratches and wax build-up may result.



Avoid leaving your vehicle unattended with the top

down, as exposure to sun or rain may damage interior

trim.



Do not use harsh cleaners or bleaching agents on top

material, as damage may result.



Do not allow any vinyl cleaner to run down and dry on

the paint, leaving a streak.



After cleaning your vehicle's fabric top, always make

sure it is completely dry before lowering.



Be especially careful when washing the windows by

following the directions for “Care of Fabric Top

Windows.”

Washing – Use Mopar® Car Wash or equivalent, or mild

soap suds, lukewarm water, and a brush with soft bristles.

If extra cleaning is required, use Mopar® Convertible Cloth

Top Cleaner or equivalent, or a mild foaming cleaner on

the entire top, but support the top from underneath.
Rinsing – Be sure to remove all traces of cleaner by rinsing

the top thoroughly with clean water. Remember to allow

the top to dry before lowering it.

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.

362

SERVICING AND MAINTENANCE

(Continued)

Care Of Fabric Top Windows

Your vehicle's fabric top has pliable plastic windows which

can be scratched unless special care is taken by following

these directions:



Never use a dry cloth to remove dust. Instead, use a

microfiber towel or soft cotton cloth moistened with

cold or warm, clean water, and wipe across the

window, not up and down. Mopar® Jeep® Soft Glass

Window Cleaner or equivalent will safely clean all

plastic windows without scratching. It removes fine

scratches to improve visibility and provides UV protec

tion to help prevent yellowing.



When washing, never use hot water or anything

stronger than a mild soap. Never use solvents such as

alcohol or harsh cleaning agents.



Always rinse thoroughly with cold water, then wipe with

a soft and slightly moist, clean cloth.



When removing frost, snow or ice, never use a scraper

or de-icing chemicals. Use warm water only if you must

clean the window quickly.



Debris (sand, mud/dirt, dust, or salt) from off-road

driving will have an impact on plastic retainer opera

tion. Even normal on-road driving and vehicle washing

will eventually impact window plastic retainer opera

tion. To maintain ease of use of the window plastic

retainers, each window plastic retainer should be

cleaned and lubricated regularly. Clean them with a

mild soap solution and a small brush. Cleaning prod

ucts are available through an authorized dealer.



Never paste stickers, gummed labels or any tape to the

windows. Adhesives are hard to remove and may

damage the windows.

INTERIORS

ARPET

AFETY

NFORMATION

Always use carpet designed to fit your vehicle. Only use

carpet that does not interfere with the operation of the

pedal assemblies. Only operate the vehicle when the

carpet is securely attached by the grommets so it cannot

slip out of position and interfere with the pedal assemblies

or impair safe operation of your vehicle in other ways.

CAUTION!

Failure to follow these cautions may cause interior

water damage, stains, or mildew of the top material:



Do not run a fabric top through an automatic car

wash. Window scratches and wax build-up may

result.



It is recommended that the top be free of water prior

to opening it. Operating the top, opening a door or

lowering a window while the top is wet may allow

water to drip into the vehicle’s interior.



Use care when washing the vehicle, water pressure

directed at the weather strip seals may cause water

to leak into the vehicle’s interior.



Careless handling and storage of the removable roof

panels may damage the seals, causing water to leak

into the vehicle’s interior.



The front panel(s) must be positioned properly to

ensure sealing. Improper installation can cause

water to leak into the vehicle’s interior.

CAUTION!



Avoid washing with rollers and/or brushes in washing

stations. Wash the vehicle only by hand using neutral

pH detergents; dry it with a wet chamois leather.

Abrasive products and/or polishes should not be

used for cleaning the car.



Bird droppings must be washed off immediately and

thoroughly as the acid they contain is particularly

aggressive.



Avoid (if at all possible) parking the vehicle under

trees; remove vegetable resins immediately as, when

dried, it may only be possible to remove them with

abrasive products and/or polishes, which is highly

inadvisable as they could alter the typical opaque

ness of the paint.



Do not use pure windshield washer fluid for cleaning

the front windshield and rear window; dilute it to a

minimum of 50% water. Only use pure windshield

washer fluid when strictly necessary due to outside

temperature conditions.

CAUTION!

SERVICING AND MAINTENANCE

363

ARPET

EMOVAL

Front Carpets (Two And Four Door Models):
1. Remove the front grommets.

Front Carpet

2. Pull the carpet out from the front to the rear.

Front Carpet Pulled Away

3. Remove the grommets under the front seat. First for

the rear carpet and then the front carpet.

Front And Rear Carpet Split

4. Under the back of the front seat, open the carpet split

and then pull out the rear edge and slide the carpet

to the front (do not remove the harness).

Rear Underside Of Front Seat Carpet Split

WARNING!



If operating the vehicle without carpet in place the

floor may become hot, and there is a risk of burns.



An improperly attached, damaged, folded, or

damaged grommets may cause your carpet to inter

fere with the accelerator, brake, or clutch pedals and

cause a loss of vehicle control. To prevent SERIOUS

INJURY or DEATH: ALWAYS securely attach your

carpet using the grommets.



ALWAYS make sure objects cannot fall or slide into

the driver’s side floor area when the vehicle is

moving. Objects can become trapped under acceler

ator, brake, or clutch pedals and could cause a loss

of vehicle control.



NEVER place any objects under the carpet (e.g.,

towels, keys, etc.). These objects could change the

position of the carpet and may cause interference

with the accelerator, brake, or clutch pedals.



ONLY install carpet designed to fit your vehicle.

NEVER install carpet that cannot be properly

attached and secured to your vehicle. If the carpet

needs to be replaced, only use manufacturer

approved carpet for the specific make, model, and

year of your vehicle.



If the vehicle carpet has been removed and

re-installed, always properly attach carpet to the floor

and check that the floor mat fasteners are secure to

the vehicle carpet. Fully depress each pedal to check

for interference with the accelerator, brake, or clutch

pedals then re-install the floor mats.

1 — Grommets

364

SERVICING AND MAINTENANCE

5. Finally open the carpet split around seat bracket and

then remove the last two grommets.

Front Seat And Floor

6. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

Rear Carpet (Four Door Models):
1. Remove the grommets under the front seat (one left

and one right).

2. Then pull the carpet out, to the rear and open the

carpet split around the front seats brackets.

Pull Toward The Rear Of Vehicle

3. Remove the grommets under the rear seat (one left

and one right). First the grommet for the cargo carpet

and then the rear carpet.

4. Pull the carpet out to the front and open the carpet

split around the rear seats brackets.

Under Rear Seat

5. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

1 — Grommets

1 — Carpet Split
2 — Rear Carpet

1 — Carpet Split

SERVICING AND MAINTENANCE

365

Rear Carpet (Two Door Models):
1. Remove the rear seats.
2. Remove the sides grommets (one left and one right).

First the grommet from the side carpet and then the

rear carpet.

Side Carpet

3. Remove the grommets under the front seat (one left

and one right).

4. Then pull the carpet out to the rear and open the

carpet split around the front seats brackets.

Pull Carpet To The Rear

5. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

Cargo Carpet (Four Door Models):
1. Remove the grommets under the rear seat (one left

and one right).

2. Pull the carpet out to the rear and open the carpet

split around the seat belt attachment.

Under Rear Seat

1 — Grommet

1 — Carpet Split
2 — Rear Carpet

366

SERVICING AND MAINTENANCE

3. Remove the carpet under the load floor and the side

support and then pull the carpet out.

Rear Load Floor

4. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

Cargo Carpet (Four Door Models) With Gap Hider:
1. Remove the grommets under the rear seat (one left

and one right).

2. Pull the carpet out to the front and open the carpet

split around the seat belt attachment and under the

center seat bracket.

Under Rear Seat

3. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

Side Carpet (Four Door Models):
1. Remove the side grommet (one left and one right).
2. Pull the carpet out starting on the top flange, then all

around the perimeter and open the carpet split

around the seat belt attachment.

Inside Sidewall

3. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

Side Carpet (Two Door Models):
1. Remove the side grommet and then the lower one

(left and right).

2. Pull the carpet out starting on the top flange, then all

around the perimeter and open the carpet split

around the seat belt attachment.

3. When reinstalling carpet please perform these steps

in reverse order making sure that the carpet is tucked

under the scuffs, B-pillar, console, and refasten

grommets.

1 — Side Support
2 — Load Floor
3 — Side Support

1 — Grommets
2 — Carpet Split

1 — Top Flange
2 — Grommet
3 — Side Carpet

SERVICING AND MAINTENANCE

367

EATS

ABRIC

ARTS

Use Mopar® Total Clean to clean fabric upholstery and

carpeting.

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.

LASTIC

OATED

ARTS

Use Mopar® Total Clean to clean vinyl upholstery.

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.
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. Dry with a soft cloth.

EATHER

URFACES

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.

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.

LASS

URFACES

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 rearview mirror, spray cleaner on the

towel or cloth that you are using. Do not spray cleaner

directly on the mirror.

WARNING!

Do not use volatile solvents for cleaning purposes.

Many are potentially flammable, and if used in closed

areas they may cause respiratory harm.

WARNING!

A frayed or torn seat belt could rip apart in a collision

and leave you with no protection. Inspect the seat belt

system periodically, checking for cuts, frays, or loose

parts. Damaged parts must be replaced immediately.

Do not disassemble or modify the seat belt system. If

your vehicle is involved in a collision, or if you have

questions regarding seat belt or retractor conditions,

take your vehicle to an authorized FCA dealer or

authorized FCA Certified Collision Care Program facility

for inspection.

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.

CAUTION!

Do not use alcohol and alcohol-based and/or ketone

based cleaning products to clean leather upholstery, as

damage to the upholstery may result.

368

TECHNICAL SPECIFICATIONS

VEHICLE IDENTIFICATION NUMBER (VIN)

The VIN is found on the left front corner of the A-pillar,

visible from outside of the vehicle through the windshield.

Vehicle Identification Number

NOTE:

It is illegal to remove or alter the VIN plate.

BRAKE SYSTEM

Your vehicle is equipped with dual hydraulic brake

systems. If either of the two hydraulic systems lose normal

capability, the remaining system will still function.

However, there will be some loss of overall braking

effectiveness. You may notice increased pedal travel

during application, greater pedal force required to slow or

stop, and potential activation of the Brake 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.

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

calibrated torque wrench using a six-sided (hex) deep wall

socket.

ORQUE

PECIFICATIONS

**Use only authorized dealer recommended 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.

Spare Tire Torque Specifications

**Use only authorized dealer recommended lug nuts/bolts

and clean or remove any dirt or oil before tightening.

Spare tire torque is for the spare tire carrier located on the

swing gate.

Wheel Mounting Surface

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 halfway).

Lug Nut/Bolt

Torque

**Lug Nut/Bolt

Size

Lug Nut/Bolt

Socket Size

130 ft-lb

(176 N·m)

M14 x 1.50

22 mm

Lug Nut/Bolt

Torque

**Lug Nut/Bolt

Size

Lug Nut/Bolt

Socket Size

59 ft-lb (80 N·m)

M14 x 1.50

22 mm

TECHNICAL SPECIFICATIONS

369

Torque Patterns

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.

FUEL REQUIREMENTS — GASOLINE ENGINE

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 a dealer

immediately. Use of gasoline with an octane number lower

than recommended can cause engine failure and may

void 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

considering service for the vehicle.

2.0L E

NGINE

This engine is designed to meet all emissions

requirements, and provide satisfactory 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 91 or higher octane premium

gasoline will allow these engines to operate to optimal

performance. This increase in performance is most

noticeable in hot weather or under heavy load conditions

such as while towing.

3.6L E

NGINE

This engine is designed to meet all emissions

regulations and provide satisfactory 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 gasoline will

not provide any benefit over regular gasoline in these

engines.

EFORMULATED

ASOLINE

Many areas of the country require the use of cleaner

burning gasoline referred to as “reformulated gasoline”.

Reformulated gasoline contains oxygenates and are

specifically blended to reduce vehicle emissions and

improve air quality.

The use of reformulated gasoline is recommended.

Properly blended reformulated gasoline will provide

improved performance and durability of engine and fuel

system components.

ATERIALS

DDED

UEL

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.
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

diaphragm materials.

WARNING!

To avoid the risk of forcing the vehicle off the jack, do

not tighten the lug nuts/bolts fully until the vehicle has

been lowered. Failure to follow this warning may result

in personal injury.

370

TECHNICAL SPECIFICATIONS

ASOLINE

XYGENATE

LENDS

Some fuel suppliers blend unleaded gasoline with

oxygenates such as ethanol.

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.

E-85 I

-F

LEX

UEL

EHICLES

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 A

LP F

UEL

YSTEM

ODIFICATIONS

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

components. 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 I

ASOLINE

Methylcyclopentadienyl Manganese Tricarbonyl (MMT) is

a manganese-containing metallic additive that is blended

into some gasolines 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.

UEL

YSTEM

AUTIONS

NOTE:

Intentional tampering with the emissions control system

can result in civil penalties being assessed against you.

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).

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 an 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 meth

anol. Fuel system damage or vehicle performance

problems resulting from the use of such fuels or addi

tives is not the responsibility of the manufacturer

and may void or not be covered under the New

Vehicle Limited Warranty.

TECHNICAL SPECIFICATIONS

371

FUEL REQUIREMENTS – DIESEL ENGINE

Federal law requires that you must fuel this vehicle with

Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur

maximum) and prohibits the use of Low Sulfur Highway

Diesel fuel (500 ppm Sulfur maximum) to avoid damage to

the emissions control system.
Use good quality diesel fuel from a reputable supplier in

your vehicle. For most year-round service, No. 2 diesel fuel

meeting ASTM (formerly known as the American Society

for Testing and Materials) specification D-975 Grade S15

will provide good performance. If the vehicle is exposed to

extreme cold (below 20°F or -7°C), or is required to

operate at colder-than-normal conditions for prolonged

periods, use climatized No. 2 diesel fuel or dilute the No.

2 diesel fuel with 50% No. 1 diesel fuel. This will provide

better protection from fuel gelling or wax-plugging of the

fuel filters.

Diesel fuel is seldom completely free of water. To prevent

fuel system trouble, drain the accumulated water from the

fuel/water separator using the fuel/water separator drain

provided on the fuel filter housing. If you buy good quality

fuel and follow the cold weather advice above, fuel

conditioners should not be required in your vehicle. If

available in your area, a high cetane “premium” diesel fuel

may offer improved cold-starting and warm-up

performance.

IESEL

UEL

PECIFICATIONS

This diesel engine has been developed to take advantage

of the high energy content and generally lower cost No. 2

Ultra Low Sulfur diesel fuel or No. 2 Ultra Low Sulfur

climatized diesel fuels.

NOTE:



If you accidentally fill the fuel tank with gasoline on your

diesel vehicle, do not start the engine. Damage to the

engine and fuel system could occur. Please call an

authorized dealer for service.



A maximum blend of 5% biodiesel meeting ASTM spec

ification D-975 may be used with your diesel engine

without any adjustments to regular service schedules.



Commercially available fuel additives are not neces

sary for the proper operation of your diesel engine.



No. 1 Ultra Low Sulfur diesel fuel should only be used

where extended arctic conditions (-10°F or -23°C)

exist.

IODIESEL

UEL

EQUIREMENTS

A maximum blend of 5% biodiesel meeting ASTM

specification D975 is recommended for use with your

diesel engine. If frequent operation with Biodiesel blends

that are between 6% and 20% (B6–B20) is desired, the

maintenance schedule is subject to shorter intervals.

The oil and filter change along with fuel filter replacement

is subject to shorter intervals when operating your engine

on biodiesel greater than 5%. Do not use biodiesel greater

than 20%.
For regular use of biodiesel blends between 6% and 20%

(B6–B20) it is important that you understand and comply

with these requirements

page 311.

Biodiesel is a fuel produced from renewable resources

typically derived from animal fat, rapeseed oil (Rapeseed

Methyl Ester (RME) base), or soybean oil (Soy Methyl Ester

(SME or SOME) base).
Biodiesel fuel has inherent limitations which require that

you understand and adhere to the following requirements

if you use blends of Biodiesel between 6% and 20%

(B6–B20). There are no unique restrictions for the use of

B5.

WARNING!

Do not use alcohol or gasoline as a fuel blending agent.

They can be unstable under certain conditions and

hazardous or explosive when mixed with diesel fuel.

CAUTION!

If the Water in Fuel Indicator Light remains on, DO NOT

START engine before you drain the water from the fuel

filter(s) to avoid engine damage

page 321.

CAUTION!

Failure to comply with Oil Change requirements for

vehicles operating on biodiesel blends between 6% and

20% (B6–B20) will result in premature engine wear.

Such wear is not covered by the New Vehicle Limited

Warranty.

CAUTION!

Use of blends greater than 20% is not approved. Use of

blends greater than 20% can result in engine damage.

Such damage is not covered by the New Vehicle Limited

Warranty.

372

TECHNICAL SPECIFICATIONS

Biodiesel Fuel Properties — Low Ambient

Temperatures

Biodiesel fuel may gel or solidify at low ambient

temperatures, which may pose problems for both storage

and operation. Precautions can be necessary at low

ambient temperatures, such as storing the fuel in a

heated building or a heated storage tank, or using cold

temperature additives.

Fuel Quality — Must Comply With ASTM

Standards

The quality of Biodiesel fuel may vary widely. Only fuel

produced by a BQ9000 supplier to the following

specifications may be blended to meet Biodiesel blend

B6 – B20 fuel meeting ASTM specification D-7467:



Petrodiesel fuel meeting ASTM specification D-975

and Biodiesel fuel (B100) meeting ASTM specification

D-6751

Fuel Oxidation Stability — Must Use Fuel

Within Six Months Of Manufacture

Biodiesel fuel has poor oxidation stability which can result

in long term storage problems. Fuel produced to approved

ASTM standards, if stored properly, provides for protection

against fuel oxidation for up to six months.

Fuel Water Separation — Must Use

Mopar® Approved Fuel Filter Elements

Biodiesel fuel has a natural affinity to water and water

accelerates microbial growth. Your Mopar® filtration

system is designed to provide adequate fuel water

separation capabilities.

Fuel In Oil Dilution — Must Adhere To

Required Oil Change Interval

Fuel dilution of lubricating oil has been observed with the

use of Biodiesel fuel. Fuel in oil must not exceed 5%. To

ensure this limit is met your oil change interval must be

maintained within the suggested schedule. The regular

use of biodiesel between 6% and 20% requires intervals

shorter than the outlined 10,000 miles (16,000 km) and

must not exceed the suggested schedule. When routinely

operating on biodiesel between 6% and 20%, oil and filter

replacement intervals must not exceed 8,000 miles

(12,875 km) or six months, whichever comes first.

Biodiesel Fuel Filter Change Intervals

The use of biodiesel requires more frequent fuel filter

change intervals. When operating on biodiesel between

6% and 20%, fuel filter replacement intervals should be

every second oil change, and must not exceed

16,000 miles (25,750 km).

NOTE:

Under no circumstances should oil change intervals

exceed 8,000 miles (12,875 km) or 6 months, if regular

operation occurs with 6% - 20% biodiesel blends. Under no

circumstances should fuel filter replacement intervals

exceed every second oil change and must not exceed

16,000 miles (25,750 km), if regular operation occurs

with 6% - 20% biodiesel blends. Failure to comply with

these Oil Change and fuel filter requirements for vehicles

operating on biodiesel blends up to B20 may result in

premature engine wear. Such wear is not covered by the

New Vehicle Limited Warranty. The engine may suffer

severe damage if operated with concentrations of

biodiesel higher than 20%.

CAUTION!

In the event that the vehicle is filled with biodiesel and

not used for more than a month, the fuel should either

be used up by driving (up to quarter tank) and filled with

standard diesel blends with less than 5% that is

normally available. This will help prevent the fuel filter

clogging and potential damage to the fuel injection

system due to degraded biodiesel, which is not covered

by the New Vehicle Limited Warranty.

TECHNICAL SPECIFICATIONS

373

FLUID CAPACITIES

Metric

Fuel (Approximate)
Two Door Models

17.5 gal

66 L

Four Door Models

21.5 gal

81 L

3.0L Diesel Engine

18.3 gal

69 L

Diesel Exhaust Fluid Tank

5.1 gal

19.3 L

Engine Oil with Filter
2.0L Engine

5 qt

4.73 L

3.6L Engine

5 qt

4.73 L

3.0L Diesel Engine

9 qt

8.5 L

Cooling System *
2.0L Engine

11.8 qt

11.2 L

2.0L Engine Intercooler

3.7 qt

3.5 L

3.6L Engine

13.4 qt

12.7 L

3.6L Motor Generator Unit (MGU)

2.3 qt

2.2 L

3.6L Power Pack Unit (PPU) Coolant

3.1 qt

2.9 L

3.0L Diesel Engine

14 qt

13.2 L

* Includes coolant recovery bottle filled to MAX level.

374

TECHNICAL SPECIFICATIONS

ENGINE FLUIDS AND LUBRICANTS

GASOLINE ENGINES

Component

Fluid, Lubricant, or Genuine Part

Engine Coolant

We recommend using Mopar® Antifreeze/Coolant 10 Year/150,000 Mile (240,000 km)

Formula OAT (Organic Additive Technology) or equivalent meeting the requirements of the

manufacturer Material Standard MS.90032.

Intercooler

We recommend using Mopar® Antifreeze/Coolant 10 Year/150,000 Mile (240,000 km)

Formula OAT (Organic Additive Technology) or equivalent meeting the requirements of the

manufacturer Material Standard MS.90032.

Engine Oil — 2.0L Engine

We recommend using Mopar® API SP/GF-6A Certified SAE 5W-30 Full Synthetic Engine

Oil which meets the requirements of the manufacturer Material Standard MS-13340.

Equivalent full synthetic 5W-30 API SP engine oil can be used but must have the API

Donut trademark

page 318.

CAUTION!

Failure to use the recommended API SP/GF-6A or equivalent oil can cause engine

damage not covered by the vehicle warranty.

Engine Oil — 3.6L Engine

We recommend using Mopar® SAE 0W-20 Full Synthetic Engine Oil which meets the

requirements of the manufacturer Material Standard MS-6395. Equivalent full synthetic

SAE 0W-20 engine oil can be used but must have the API Starburst trademark

page 318.

Fuel Selection — 2.0L Engine

87 Octane (R+M)/2 Method, 0-15% Ethanol.

Fuel Selection — 3.6L Engine

87 Octane (R+M)/2 Method, 0-15% Ethanol.

TECHNICAL SPECIFICATIONS

375

DIESEL ENGINES

CAUTION!



Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and may decrease corrosion

protection. Organic Additive Technology (OAT) engine coolant is different and should not be mixed with Hybrid Organic Additive Technology (HOAT) engine coolant (antifreeze) or

any “globally compatible” coolant (antifreeze). If a non-OAT engine coolant (antifreeze) is introduced into the cooling system in an emergency, the cooling system will need to be

drained, flushed, and refilled with fresh OAT coolant (conforming to MS.90032), by an authorized dealer as soon as possible.



Do not use water alone or alcohol-based engine coolant (antifreeze) products. Do not use additional rust inhibitors or antirust products, as they may not be compatible with the

radiator engine coolant and may plug the radiator.



This vehicle has not been designed for use with propylene glycol-based engine coolant (antifreeze). Use of propylene glycol-based engine coolant (antifreeze) is not recommended.

Component

Fluid, Lubricant, or Genuine Part

Engine Coolant

We recommend using Mopar® Antifreeze/Coolant 10 Year/150,000 Mile (240,000 km)

Formula OAT (Organic Additive Technology) or equivalent meeting the requirements of the

manufacturer Material Standard MS.90032.

Engine Oil — 3.0L Diesel Engine

We recommend using Mopar® API Certified SAE 5W-40 Full Synthetic Engine Oil which

meets the requirements of the manufacturer Material Standard MS-12991. Equivalent

full synthetic SAE 5W-40 engine oil can be used but must be compliant to API SN/SP and

ACEA A3/B4 specifications.

Fuel Filters — 3.0L Diesel Engine

We recommend using Mopar® Fuel Filter. Must meet 3 micron rating. Using a fuel filter

that does not meet the manufacturer filtration and water separating requirements can

severely impact fuel system life and reliability.

376

TECHNICAL SPECIFICATIONS

CHASSIS FLUIDS AND LUBRICANTS

Fuel Selection — 3.0L Diesel Engine

Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law

requires that you must fuel this vehicle with Ultra Low Sulfur Highway Diesel fuel (15 ppm

Sulfur maximum) and prohibits the use of Low Sulfur Highway Diesel fuel (500 ppm

Sulfur maximum) to avoid damage to the emissions control system. For most year-round

service, Number 2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide

good performance. We recommend using a blend of up to 5% biodiesel, meeting ASTM

specification D-975 with your diesel engine.

This vehicle is compatible with biodiesel blends greater than 5% but no greater than 20%

biodiesel meeting ASTM specification D-7467 provided the shortened maintenance

intervals are followed as directed.

Diesel Exhaust Fluid — 3.0L Diesel Engine

Mopar® Diesel Exhaust Fluid (DEF) (API Certified) or equivalent that has been API

Certified to the ISO 22241 standard. Use of fluids not API Certified to ISO 22241 may

result in system damage.

Component

Fluid, Lubricant, or Genuine Part

Automatic Transmission – If Equipped

Use only Mopar® ZF 8 & 9 Speed Automatic Transmission Fluid (ATF) or equivalent.

Failure to use the correct fluid may affect the function or performance of your

transmission.

Manual Transmission – If Equipped

We recommend using Mopar® ATF+4 Automatic Transmission Fluid.

Transfer Case

We recommend using Mopar® ATF+4 Automatic Transmission Fluid.

Front Axle Differential

We recommend using Mopar® Gear & Axle Lubricant (SAE 75W85)(API GL-5).

Rear Axle Differential (M200 Sales Code DRZ)

We recommend using Mopar® Gear & Axle Lubricant (SAE 75W140)(API GL-5).

Rear Axle Differential (M220 Sales Codes DRE/DRF)

We recommend using Mopar® Gear & Axle Lubricant (SAE 75W85)(API GL-5). Models

equipped with Trac-Lok Limited Slip Differential require a friction modifier additive.

Brake Master Cylinder

We recommend using Mopar® DOT 3 Brake Fluid, SAE J1709.

Power Steering Reservoir

We recommend using Mopar® Electric Steering Pump Fluid.

Component

Fluid, Lubricant, or Genuine Part

Jeep Wrangler (2023 year). Manual in english - page 23