Kia Stonic YB 2021 - Page 548

Maintenance
707
Tyres and wheels
can be carried by the tyre. 8hen
replacing the tyres on the vehicle,
always use a tyre that has the same
load rating as the factory installed
tyre.
7. Uniform tyre quality grading
Quality grades can be found where
applicable on the tyre sidewall
between tread shoulder and maxi
-
mum section width.
For example: T3EAD8EA3 200
T3ACTION AA TEMPE3ATU3E A
Tread wear
The tread wear grade is a compara
-
tive rating based on the wear rate
of the tyre when tested under con
-
trolled conditions on a specified
government test course. For exam
-
ple, a tyre graded 10 would wear
one-and-ahalf times (1󳚨) as well on
the government course as a tyre
graded 100.
The relative performance of tyres
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.
These grades are molded on the
side-walls of passenger vehicle
tyres. The tyres available as stan
-
dard or optional equipment on your
vehicle may vary with respect to
grade.
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tyre䳓s ability
to stop on wet pavement as mea
-
sured under controlled conditions on
specified government test surfaces
of asphalt and concrete. A tyre
marked C may have poor traction
performance.
Temperature -A, B & C
The temperature grades are A (the
highest), B, and C, representing the
tyre䳓s resistance to the generation
of heat and its ability to dissipate
heat when tested under controlled
conditions on a specified indoor lab
-
oratory test wheel.
Sustained high temperature can
cause the material of the tyre to
degenerate and reduce tyre life, and
excessive temperature can lead to
sudden tyre failure. Grades B and A
represent higher levels of perfor
-
mance on the laboratory test wheel
than the minimum required by law.
WARNING
The traction grade assigned to this
tyre is based on straight-ahead
braking traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction char
-
acteristics.
WARNING
Tyre temperature