spare tire Ram 1500 2018 Owner's Manual

WARNING!
• If working on or near a roadway, beextremely careful of motor traffic.
• To assure that spare tires, flat or
inflated, are securely stowed,
spares must be stowed with the
valve stem facing the ground.
• Raising the vehicle higher than nec-
essary can make the vehicle less
stable. It could slip off the jack and
hurt someone near it. Raise the ve-
hicle only enough to remove the
tire.
• To avoid the risk of forcing the ve-
hicle off the jack, do not fully
tighten the wheel bolts until the
vehicle has been lowered. Failure to
follow this warning may result in
personal injury.
• To avoid possible personal injury,
handle the wheel covers with care to
avoid contact with any sharp edges.
WARNING!
• A loose tire or jack thrown forward ina collision or hard stop could en-
danger the occupants of the ve-
hicle. Always stow the jack parts
and the spare tire in the places
provided.
• A loose tire thrown forward in a
collision or hard stop could injure
the occupants in the vehicle. Have
the deflated (flat) tire repaired or
replaced immediately.
CAUTION!
• Do not attempt to raise the vehicle byjacking on locations other than those
indicated in the Jacking Instructions for
this vehicle.
• Before raising the wheel off the ground,
make sure that the jack will not damage
surrounding truck parts and adjust the
jack position as required.
• Use a back and forth motion to remove
the hub cap. Do not use a twisting mo-
CAUTION!
tion when removing the hub cap, dam-
age to the hub cap; finish may occur.
• The rear hubcaps on the dual rear wheel
has two pry off notches. Make sure that
the hook of the jack handle driver is
located squarely in the cap notch before
attempting to pull off.
Reinstalling The Jack And Tools
1500 Series Trucks
1. Tighten the jack all the way down by turning the jack turn-screw clockwise un-
til the jack is snug.
215

SERVICING AND MAINTENANCE
SCHEDULED SERVICING —
GASOLINE ENGINE.............230
Maintenance Plan — Gasoline Engine. .231
Heavy Duty Use Of The Vehicle ......234
SCHEDULED SERVICING —
1500 3.0L DIESEL ENGINE........234
Maintenance Plan — Diesel Fuel Up To
B5 Biodiesel (1500 Diesel) ........235
Additional Maintenance — B6 To
B20 Biodiesel (1500 Diesel) .......237
SCHEDULED MAINTENANCE —
6.7L CUMMINS DIESEL ENGINE .....237
Oil Change Indicator System —
Cummins Diesel...............238
Perform Service Indicator —
Cummins Diesel ..............239
Maintenance Plan — Cummins Diesel
Engine .....................239
ENGINE COMPARTMENT .........243
3.6L Engine.................243
5.7L Engine .................244
6.4L Engine .................245
3.0L Diesel Engine .............246
6.7L Diesel Engine — Six-Speed 68RFE
(2500/3500 Models) ............247
6.7L Diesel Engine — Six-Speed AS69RC
HD (3500/Chassis Cab Models) .....248
DEALER SERVICE — 3.0L DIESEL . . . .249
Engine Air Cleaner Filter.........249
Draining Fuel/Water Separator Filter . .249
Underbody Mounted Fuel Filter
Replacement .................250
Priming If The Engine Has Run Out Of
Fuel ......................251
DEALER SERVICE — 6.7L DIESEL
ENGINE ................... .252
Engine Air Cleaner Filter.........252Draining Fuel/Water Separator Filter . .253
Engine Mounted Fuel Filter
Replacement
.................254
Underbody Mounted Fuel Filter
Replacement .................255
Priming If The Engine Has Run Out Of
Fuel ......................256
HOISTING ................. .257
TIRES .................... .257
Tire Safety Information..........257
Tires — General Information .......264
Tire Types ...................268
Spare Tires — If Equipped .........269
Wheel And Wheel Trim Care .......271
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES . . . .272
Treadwear...................272
Traction Grades ...............273
Temperature Grades .............273
SERVICING AND MAINTENANCE
229

HOISTING
A conventional floor jack may be used at the
jacking locations. Refer to the graphics that
show jacking locations. However, a floor jack
or frame hoist must never be used on any
other parts of the underbody.
CAUTION!
Never use a floor jack directly under the
differential housing of a loaded truck or
damage to your vehicle may result.
TIRES
Tire Safety Information
Tire safety information will cover aspects of
the following information: Tire Markings, Tire
Identification Numbers, Tire Terminology and
Definitions, Tire Pressures, and Tire Loading.
Tire MarkingsNOTE:
• P (Passenger) — Metric tire sizing is basedon U.S. design standards. P-Metric tires
have the letter “P” molded into the sidewall
preceding the size designation. Example:
P215/65R15 95H.
• European — Metric tire sizing is based on European design standards. Tires designed
to this standard have the tire size molded
into the sidewall beginning with the section
width. The letter "P" is absent from this tire
size designation. Example: 215/
65R15 96H.
• LT (Light Truck) — Metric tire sizing is based on U.S. design standards. The size
designation for LT-Metric tires is the same
as for P-Metric tires except for the letters
“LT” that are molded into the sidewall pre-
ceding the size designation. Example:
LT235/85R16.
• Temporary spare tires are designed for tem- porary emergency use only. Temporary high
pressure compact spare tires have the letter
“T” or “S” molded into the sidewall preced-
ing the size designation. Example: T145/
80D18 103M.
Tire Markings
1 — U.S. DOT
Safety Stan-
dards Code
(TIN) 4 — Maximum
Load
2 — Size Desig-
nation 5 — Maximum
Pressure
3 — Service
Description 6 — Treadwear,
Traction and
Temperature
Grades
257

• High flotation tire sizing is based on U.S.design standards and it begins with the tire
diameter molded into the sidewall. Ex-
ample: 31x10.5 R15 LT.
Tire Sizing Chart
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on U.S. design standards, or
"....blank...." = Passenger car tire based on European design standards, or
LT = Light truck tire based on U.S. design standards, or
TorS= Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)
• Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
• "R" means radial construction, or
• "D" means diagonal or bias construction
15, 16, 18 = Rim diameter in inches (in)
Service Description:
95 = Load Index
• A numerical code associated with the maximum load a tire can carry
SERVICING AND MAINTENANCE
258

Tire Loading And Tire Pressure
NOTE:
The proper cold tire inflation pressure is
listed on the driver’s side B-Pillar or the rear
edge of the driver's side door.
Check the inflation pressure of each tire,
including the spare tire (if equipped), at least
monthly and inflate to the recommended
pressure for your vehicle.Tire And Loading Information PlacardThis placard tells you important information
about the:
1. Number of people that can be carried in
the vehicle.
2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and spare tires.
Loading
The vehicle maximum load on the tire must
not exceed the load carrying capacity of the
tire on your vehicle. You will not exceed the
tire's load carrying capacity if you adhere to
the loading conditions, tire size, and cold tire
inflation pressures specified on the Tire and
Loading Information placard in “Vehicle
Loading” in the “Starting And Operating”
section of this manual.
NOTE:
Under a maximum loaded vehicle condition,
gross axle weight ratings (GAWRs) for the
front and rear axles must not be exceeded.
Example Tire Placard Location (Door)
Example Tire Placard Location (B-Pillar)
Tire And Loading Information Placard
261

Tread Wear Indicators
Tread wear indicators are in the original
equipment tires to help you in determining
when your tires should be replaced.
These indicators are molded into the bottom
of the tread grooves. They will appear as
bands when the tread depth becomes a
1/16 of an inch (1.6 mm). When the tread is
worn to the tread wear indicators, the tire
should be replaced. Refer to “Replacement
Tires” in this section for further information.
Life Of Tire
The service life of a tire is dependent upon
varying factors including, but not limited to:
• Driving style.
• Tire pressure - Improper cold tire inflationpressures can cause uneven wear patterns
to develop across the tire tread. These ab-
normal wear patterns will reduce tread life,
resulting in the need for earlier tire replace-
ment.
• Distance driven.
• Performance tires, tires with a speed rating of V or higher, and Summer tires typically
have a reduced tread life. Rotation of these
tires per the vehicle scheduled mainte-
nance is highly recommended.
WARNING!
Tires and the spare tire should be replaced
after six years, regardless of the remaining
tread. Failure to follow this warning can
result in sudden tire failure. You could lose
control and have a collision resulting in
serious injury or death. Keep dismounted tires in a cool, dry place
with as little exposure to light as possible.
Protect tires from contact with oil, grease,
and gasoline.
Replacement Tires
The tires on your new vehicle provide a bal-
ance of many characteristics. They should be
inspected regularly for wear and correct cold
tire inflation pressures. The manufacturer
strongly recommends that you use tires
equivalent to the originals in size, quality and
performance when replacement is needed.
Refer to the paragraph on “Tread Wear Indi-
cators” in this section. Refer to the Tire and
Loading Information placard or the Vehicle
Certification Label for the size designation of
your tire. The Load Index and Speed Symbol
for your tire will be found on the original
equipment tire sidewall.
See the Tire Sizing Chart example found in
the “Tire Safety Information” section of this
manual for more information relating to the
Load Index and Speed Symbol of a tire.
Tire Tread
1 — Worn Tire
2 — New Tire
267

Summer tires do not contain the all season
designation or mountain/snowflake symbol
on the tire sidewall. Use Summer tires only in
sets of four; failure to do so may adversely
affect the safety and handling of your vehicle.
WARNING!
Do not use Summer tires in snow/ice con-
ditions. You could lose vehicle control,
resulting in severe injury or death. Driving
too fast for conditions also creates the
possibility of loss of vehicle control.
Snow Tires
Some areas of the country require the use of
snow tires during the Winter. Snow tires can
be identified by a “mountain/snowflake”
symbol on the tire sidewall.
If you need snow tires,
select tires equivalent
in size and type to the
original equipment
tires. Use snow tires
only in sets of four; fail-ure to do so may adversely affect the safety and
handling of your vehicle.
Snow tires generally have lower speed ratings
than what was originally equipped with your
vehicle and should not be operated at sus-
tained speeds over 75 mph (120 km/h). For
speeds above 75 mph (120 km/h) refer to
original equipment or an authorized tire
dealer for recommended safe operating
speeds, loading and cold tire inflation pres-
sures.
While studded tires improve performance on
ice, skid and traction capability on wet or dry
surfaces may be poorer than that of non-
studded tires. Some states prohibit studded
tires; therefore, local laws should be checked
before using these tire types.
Spare Tires — If Equipped
For vehicles equipped with Tire Service Kit
instead of a spare tire, please refer to “Tire
Service Kit” in “In Case Of Emergency” in the
Owner’s Manual for further information.
CAUTION!
Because of the reduced ground clearance,
do not take your vehicle through an auto-
matic car wash with a compact or limited
use temporary spare installed. Damage to
the vehicle may result.
Spare Tire Matching Original Equipped Tire
And Wheel — If Equipped
Your vehicle may be equipped with a spare
tire and wheel equivalent in look and function
to the original equipment tire and wheel
found on the front or rear axle of your vehicle.
This spare tire may be used in the tire rotation
for your vehicle. If your vehicle has this op-
tion, refer to an authorized tire dealer for the
recommended tire rotation pattern.
Compact Spare Tire — If Equipped
The compact spare is for temporary emer-
gency use only. You can identify if your ve-
hicle is equipped with a compact spare by
looking at the spare tire description on the
Tire and Loading Information Placard located
on the driver’s side door opening or on the
269

sidewall of the tire. Compact spare tire de-
scriptions begin with the letter “T” or “S”
preceding the size designation. Example:
T145/80D18 103M.
T,S=Temporary Spare Tire
Since this tire has limited tread life, the
original equipment tire should be repaired (or
replaced) and reinstalled on your vehicle at
the first opportunity.
Do not install a wheel cover or attempt to
mount a conventional tire on the compact
spare wheel, since the wheel is designed
specifically for the compact spare tire. Do not
install more than one compact spare tire and
wheel on the vehicle at any given time.
WARNING!
Compact and collapsible spares are for
temporary emergency use only. With these
spares, do not drive more than 50 mph
(80 km/h). Temporary use spares have
limited tread life. When the tread is worn
to the tread wear indicators, the temporary
use spare tire needs to be replaced. Be
sure to follow the warnings, which apply to
WARNING!
your spare. Failure to do so could result in
spare tire failure and loss of vehicle con-
trol.
Collapsible Spare Tire — If Equipped
The collapsible spare is for temporary emer-
gency use only. You can identify if your ve-
hicle is equipped with a collapsible spare by
looking at the spare tire description on the
Tire and Loading Information Placard located
on the driver’s side door opening or on the
sidewall of the tire.
Collapsible spare tire description example:
165/80-17 101P.
Since this tire has limited tread life, the
original equipment tire should be repaired (or
replaced) and reinstalled on your vehicle at
the first opportunity.
Inflate collapsible tire only after the wheel is
properly installed to the vehicle. Inflate the
collapsible tire using the electric air pump
before lowering the vehicle. Do not install a wheel cover or attempt to
mount a conventional tire on the collapsible
spare wheel, since the wheel is designed
specifically for the collapsible spare tire.
WARNING!
Compact and Collapsible spares are for
temporary emergency use only. With these
spares, do not drive more than 50 mph
(80 km/h). Temporary use spares have
limited tread life. When the tread is worn
to the tread wear indicators, the temporary
use spare tire needs to be replaced. Be
sure to follow the warnings, which apply to
your spare. Failure to do so could result in
spare tire failure and loss of vehicle con-
trol.
Full Size Spare — If Equipped
The full size spare is for temporary emer-
gency use only. This tire may look like the
originally equipped tire on the front or rear
axle of your vehicle, but it is not. This spare
tire may have limited tread life. When the
tread is worn to the tread wear indicators, the
temporary use full size spare tire needs to be
SERVICING AND MAINTENANCE
270

replaced. Since it is not the same as your
original equipment tire, replace (or repair)
the original equipment tire and reinstall on
the vehicle at the first opportunity.
Limited Use Spare — If Equipped
The limited use spare tire is for temporary
emergency use only. This tire is identified by
a label located on the limited use spare
wheel. This label contains the driving limita-
tions for this spare. This tire may look like the
original equipped tire on the front or rear axle
of your vehicle, but it is not. Installation of
this limited use spare tire affects vehicle
handling. Since it is not the same as your
original equipment tire, replace (or repair)
the original equipment tire and reinstall on
the vehicle at the first opportunity.
WARNING!
Limited use spares are for emergency use
only. Installation of this limited use spare
tire affects vehicle handling. With this tire,
do not drive more than the speed listed on
the limited use spare wheel. Keep inflated
to the cold tire inflation pressures listed on
WARNING!
your Tire and Loading Information Placard
located on the driver’s side B-Pillar or the
rear edge of the driver’s side door. Replace
(or repair) the original equipment tire at
the first opportunity and reinstall it on your
vehicle. Failure to do so could result in loss
of vehicle control.
Wheel And Wheel Trim Care
All wheels and wheel trim, especially alumi-
num and chrome plated wheels, should be
cleaned regularly using mild (neutral Ph)
soap and water to maintain their luster and to
prevent corrosion. Wash wheels with the
same soap solution recommended for the
body of the vehicle.
Your wheels are susceptible to deterioration
caused by salt, sodium chloride, magnesium
chloride, calcium chloride, etc., and other
road chemicals used to melt ice or control
dust on dirt roads. Use a soft cloth or sponge
and mild soap to wipe away promptly. Do notuse harsh chemicals or a stiff brush. They can
damage the wheel’s protective coating that
helps keep them from corroding and
tarnishing.
CAUTION!
Avoid products or automatic car washes
that use acidic solutions or strong alkaline
additives or harsh brushes. Many aftermar-
ket wheel cleaners and automatic car
washes may damage the wheel's protective
finish. Such damage is not covered by the
New Vehicle Limited Warranty. Only car
wash soap, Mopar Wheel Cleaner or
equivalent is recommended.
When cleaning extremely dirty wheels includ-
ing excessive brake dust, care must be taken
in the selection of tire and wheel cleaning
chemicals and equipment to prevent damage
to the wheels. Mopar Wheel Treatment or
Mopar Chrome Cleaner or their equivalent is
recommended or select a non-abrasive, non-
acidic cleaner for aluminum or chrome
wheels.
271

• Dual wheel models require a special heavy-duty lug nut tightening adapter (included
with the vehicle) to correctly tighten the lug
nuts. Also, when it is necessary to remove
and install dual rear wheels, use a proper
vehicle lifting device.
NOTE:
When installing a spare tire as part of a dual
rear wheel end combination, the tire diam-
eter of the two individual tires must be com-
pared. If there is a significant difference, the
larger tire should be installed in a front loca-
tion. The correct direction of rotation for dual
tire installations must also be observed. These dual rear wheels should be tightened as
follows:
1. Tighten the wheel nuts in the numbered
sequence to a snug fit. 2. Retighten the wheel nuts in the same
sequence to the torques listed in the
table. Go through the sequence a second
time to verify that specific torque has
been achieved. Retighten to specifica-
tions at 100 miles (160 km) and after
500 miles (800 km).
• It is recommended that wheel stud nuts be kept torqued to specifications at all times.
Torque wheel stud nuts to specifications at
each lubrication interval.
Wheel Nuts Numbered Sequence
277