2018 JEEP WRANGLER UNLIMITED dimensions

your tire. The Load Index and Speed Symbol
for your tire will be found on the original
equipment tire sidewall.
It is recommended to replace the two front
tires or two rear tires as a pair. Replacing just
one tire can seriously affect your vehicle’s
handling. If you ever replace a wheel, make
sure that the wheel’s specifications match
those of the original wheels.
It is recommended you contact an authorized
tire dealer or original equipment dealer with
any questions you may have on tire specifi-
cations or capability. Failure to use equiva-
lent replacement tires may adversely affect
the safety, handling, and ride of your vehicle.
WARNING!
• Do not use a tire, wheel size, load rating,
or speed rating other than that specified
for your vehicle. Some combinations of
unapproved tires and wheels may
change suspension dimensions and per-
formance characteristics, resulting in
changes to steering, handling, and brak-
ing of your vehicle. This can cause un-
WARNING!
predictable handling and stress to steer-
ing and suspension components. You
could lose control and have a collision
resulting in serious injury or death. Use
only the tire and wheel sizes with load
ratings approved for your vehicle.
• Never use a tire with a smaller load index
or capacity, other than what was origi-
nally equipped on your vehicle. Using a
tire with a smaller load index could re-
sult in tire overloading and failure. You
could lose control and have a collision.
• Failure to equip your vehicle with tires
having adequate speed capability can
result in sudden tire failure and loss of
vehicle control.
CAUTION!
Replacing original tires with tires of a
different size may result in false speedom-
eter and odometer readings.
Tire Types
All Season Tires — If Equipped
All Season tires provide traction for all sea-
sons (Spring, Summer, Fall, and Winter).
Traction levels may vary between different all
season tires. All season tires can be identi-
fied by the M+S, M&S, M/S or MS designa-
tion on the tire sidewall. Use all season tires
only in sets of four; failure to do so may
adversely affect the safety and handling of
your vehicle.
Summer Or Three Season Tires — If
Equipped
Summer tires provide traction in both wet
and dry conditions, and are not intended to
be driven in snow or on ice. If your vehicle is
equipped with Summer tires, be aware these
tires are not designed for Winter or cold
driving conditions. Install Winter tires on your
vehicle when ambient temperatures are less
than 40°F (5°C) or if roads are covered with
ice or snow. For more information, contact an
authorized dealer.
Summer tires do not contain the all season
designation or mountain/snowflake symbol
SERVICING AND MAINTENANCE
234

TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION
NUMBER.................246
WHEEL AND TIRE TORQUE
SPECIFICATIONS...........246
Torque Specifications............246
DIMENSIONS...............247
WHEELS..................250
WEIGHTS.................250FUEL REQUIREMENTS — GASOLINE
ENGINE...................252
2.0L Engine.................252
3.6L Engine.................252
Materials Added To Fuel.........253
Fuel Icon Identification Compliant To
EN16942...................253
FUEL REQUIREMENTS — DIESEL
ENGINE..................255
Fuel Icon Identification Compliant To
EN16942...................256
FLUID CAPACITIES..........257
FLUIDS AND LUBRICANTS.....259
Engine....................259
Chassis....................261
FUEL CONSUMPTION AND CO2EMISSIONS................262
MOPAR ACCESSORIES.......262
Authentic Accessories And Jeep
Performance Parts By Mopar.......262
TECHNICAL SPECIFICATIONS
245

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).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/bolts
fully until the vehicle has been lowered.
Failure to follow this warning may result in
personal injury.
DIMENSIONS
Contour Dimension / inches (mm)
Length Width Height Wheelbase
Wrangler Sport 170.6 (4334) 74.6 (1894)71.7 (1821) (*) / 73.1
(1858) (**)96.8 (2459)
Wrangler Unlimited Sport 192.2 (4882) 74.6 (1894)72.0 (1828) (*) / 74.1
(1881) (**)118.4 (3008)
Wrangler Sahara 170.6 (4334) 74.6 (1894)72.4 (1839) (*) / 73.9
(1878) (**)96.8 (2459)
Wrangler Unlimited Sahara 192.2 (4882) 74.6 (1894)72.4 (1838) (*) / 74.4
(1891) (**)118.4 (3008)
Torque Patterns
247

Minimum Ground Clearance (Reference A)
The clearance value is measured next to the
lower edge of the differential. This value also
defines those for the “Approach Angle” the
“Departure Angle” and the “Breakover
Angle”.
Dimensions are expressed in inches (mm)
and refer to the vehicle equipped with its
original tires.
Approach Angle (Reference B)
The approach angle is determined by the
horizontal line of the road surface, and by the
tangent line passing between the front wheel,
and the most projecting low point of the car.The wider the angle, the lower the chance to
hit an obstacle with the body or chassis, when
climbing a steep slope or overcoming an
obstacle.
Departure Angle (Reference C)
The departure angle is determined by the
same lines of the “Approach Angle”, and
refers to the rear part of the vehicle.
Breakover Angle (Reference D)
The value of the “Breakover Angle” is linked
to the ground clearance of the vehicle and
indicates the attitude of the vehicle to over-
come a wedge, more or less steep, preventing
the vehicle from resting on the ground with
the body or chassis after touching the wedge
with its lowest and most projecting parts
(usually the underbody), because this would
highly reduce wheel grip.The wheels, without a suitable grip to the
ground, will not have sufficient hold to move
the vehicle, and will surge.
The higher the ground clearance, the wider
the breakover angle. Always bear in mind that
the higher the ground clearance, the lower
the stability, due to a higher center of gravity
which reduces the side rollover angle.
Ground Clearance / Typical Angles
Measurements
249