inflation pressure Ram 1500 2018 Owner's Guide

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 origi-
nal equipment tires. Use snow tires only
in sets of four; failure 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 sustained 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
pressures.
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 stud-
ded tires; therefore, local laws should be checked before
using these tire types.
Spare Tires — If Equipped
NOTE: For vehicles equipped with Tire Service Kit instead
of a spare tire, please refer to “Tire Service Kit” in “In Case
Of Emergency” for further information.
CAUTION!
Because of the reduced ground clearance, do not take
your vehicle through an automatic 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 option, refer to an
authorized tire dealer for the recommended tire rotation
pattern.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency use only.
You can identify if your vehicle is equipped with a compact
8
SERVICING AND MAINTENANCE 575

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 control.
Full Size Spare — If Equipped
The full size spare is for temporary emergency 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 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 limitations
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 equip-
ment 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. Instal-
lation 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
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.8
SERVICING AND MAINTENANCE 577

Steering Wheel Audio Controls.................653
Steering Wheel Mounted Sound System Controls . . . .653
Storage Compartment, Center Seat ..............123
Storage, Vehicle ........................105, 584
Storing Your Vehicle ........................584
Sun Roof .................................110
Suspension, Air ........................344, 350
Sway Control, Trailer ........................213
Synthetic Engine Oil ........................530
Tailgate .................................153
Telescoping Steering Column ...................61
Temperature Control, Automatic (ATC) ...........104
Tilt Down ...............................47, 49
Up .................................47, 49
Tilt Steering Column .........................61
Tip Start .................................289
Tire And Loading Information Placard ............564
Tire Markings ............................ .558
Tires......................... .281, 568, 575, 583
Aging (Life Of Tires) ..................... .572
Air Pressure ............................568
Chains ............................... .579
Changing ............................. .468Compact Spare
..........................575
Dual ............................. .582, 594
General Information ...................568, 575
High Speed ............................ .570
Inflation Pressures ........................569
Jacking ............................... .468
Life Of Tires ............................572
Load Capacity .......................564, 565
Pressure Monitor System (TPMS) .............216
Pressure Warning Light ....................194
Quality Grading ........................ .583
Radial ............................... .570
Replacement ............................573
Rotation ...............................580
Safety ............................ .558,568
Sizes .................................560
Snow

Tires ............................ .575
Spare Tire ..........................575, 577
Spinning ...............................571
Trailer Towing .......................... .425
Tread Wear Indicators .....................572
Wheel Nut Torque ........................594
Tire Safety Information .......................558
Tongue Weight/Trailer Weight .................423
694 INDEX