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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
/
in (3 mm).
8
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
1
imately
/
in (1.6 mm), at which point
16
the tire is considered worn and should be
replaced.
Recommended minimum tire tread depth:
1
Summer tires
/
in (3 mm)
8
1
Winter tires
/
in (4 mm)
6
Warning!
Although the applicable federal motor safety
laws consider a tire to be worn when the
treadwear indicators (TWI) become visible at
1
approximately
/
in (1.6 mm), we
16
recommend that you do not allow your tires
to wear down to that level. As tread depth
1
approaches
/
in (3 mm), the adhesion
8
properties on a wet road are sharply
reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
G
1 TWI (Tread Wear Indicator)
The treadwear indicator appears as a solid
band across the tread.
Tires and wheels
Storing tires
!
Keep unmounted tires in a cool, dry place
with as little exposure to light as possible. Pro-
tect tires from contact with oil, grease and gaso-
line.
Cleaning tires
!
Never use a round nozzle to power wash
tires. The intense jet of water can result in dam-
age to the tire.
Always replace a damaged tire.
Operation
283
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