Dodge 2007 Sprinter - Manual (Page 204)

203
Operation
Tires and wheels
4
Life of tire
The service life of a tire depends on varying
factors including but not limited to:
ț Driving style
ț Tire inflation pressure
ț Distance driven
Tread depth
Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths under
1 /
8
in (3 mm) for summer tires and 1 /
6
in
(4 mm) for winter tires.
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and be-
come visible at a tread depth of approxi-
mately
1 /
16
in (1.6 mm), at which point
the tire is considered worn and should be
replaced.
Recommended minimum tire tread depth:
ț Summer tires
1 /
8
in (3 mm)
ț Winter tires 1 /
6
in (4 mm)
You could lose control of the vehicle as a re-
sult, cause an accident and injure yourself
or others.
Avoid driving up against curbs or parking the
vehicle with part of the tire tread surface on
the curb.
Warning
G
Tires and spare tire should be replaced after
6 years, regardless of the remaining tread.
Warning
G
Although the applicable federal motor safety
laws consider a tire to be worn when the
Treadwear Indicators (TWI) become visible
at approximately
1 /
16
in (1.6 mm), we rec-
ommend that you do not allow your tires to
wear down to that level. As tread depth ap-
proaches
1 /
8
in (3 mm) for summer tires or
1 /
6
in (4 mm) for winter tires, the adhesion
properties on a wet road are sharply re-
duced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.