User Manual

Vehicle
Load
Tire
Pressure
Expected
T
otal Tire
Mileage
60% Over 35% Low 40%
80% Over 45% Low 30%
100% Over 55% Low 25%
Overinflated Tires
Overinflating the tires reduces the tread
contact area with the road surface,
concentrating all of the vehicle weight on
the center of the tread. This causes
premature wear of the tire.
WARNING
Overinflated tires can cause accidents.
They
wear more quickly than properly
inflated tires and are more subject to
punctures, cracks, and other damage.
They could fail and cause you to lose
control of your vehicle resulting in an
accident causing death or personal in-
jury. Be sure all tires are inflated cor-
rectly according to the manufacturer's
recommendations.
Matching Tires
Be sure to buy matched tires for your
vehicle, especially on the rear axles.
Mismatched tires can cause stress
between axles and cause the temperature
of your axle lubricant to get too hot.
Matched tires will help your driveline last
longer and will give you better tire mileage.
WARNING
DO NOT mismatch tires, it can be dan-
gerous. Never mix tires of different de-
sign such as steel belted radials and
bias ply tires, etc. Mixing tire types and
sizes will adversely affect the road
holding ability of both types of tires
and can lead to loss of vehicle control
and causing death or personal injury.
WARNING
DO NOT install regrooved or reinforce-
ment
repaired tires on steering axles.
They could fail unexpectedly and
cause you to lose control of your vehi-
cle
resulting in an accident causing
death or personal injury.
Replacing Tires
Front: Replace front tires when less than
4/32 -in. of tread remains. Check at three
places equally spaced around the tire.
Drive Axles or T
railers: Replace tires on
drive axles or trailers when less than 2/32 -
in. of tread depth remains in any major
groove. Check at three places equally
spaced around the tire.
WARNING
DO NOT replace original equipment
tires with load ratings less than the
original tires. Doing so could lead to
unintentional overloading of the tire,
which could cause a failure resulting in
loss of vehicle control and an accident.
Failure to comply may result in death,
personal injury, equipment or property
damage.
MAINTENANCE - Tires
268 Y53-6113-1A1 (11/20)
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