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280
Operation
Tires and wheels
ț Any tire with a speed capability above
186 mph (300 km/h) must include a
“ZR” in the size designation AND the
service description must be placed in
parenthesis.
Example: 275/40 ZR 18 (99Y).
The “(Y)” speed rating in parenthesis
designates the maximum speed capa-
bility of the tire as being above
186 mph (300 km/h). Consult the tire
manufacturer for the actual maximum
permissible speed of the tire.
All-season and winter tires
Load identification
1 Load identification
In addition to tire load rating, special load
identification 1 may be molded into the
tire sidewall following the letter designat-
ing the tire speed rating (
୴ page 277).
Index Speed rating
QM+S
1
1
or M+S.for winter tires
up to 100 mph (160 km/h)
TM+S
1
up to 118 mph (190 km/h)
HM+S
1
up to 130 mph (210 km/h)
VM+S
1
up to 149 mph (240 km/h)
i
Not all M+S rated tires provide special win-
ter performance. Make sure the tires you use
show M+S and the mountain/snowflake.
marking on the tire sidewall. These tires meet
specific snow traction performance require-
ments of the Rubber Manufacturers Association
(RMA) and the Rubber Association of Canada
(RAC) and have been designed specifically for
use in snow conditions.
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and may vary
from data shown in above illustration.