Temperature A, B, C - Subaru 2001 Forester Owner's Manual

phalt and concrete. A tire marked C may have poor traction perfor-
mance.
WARNING
The traction grade assigned to this tire is based on straightahead
braking traction tests, and does not include acceleration, corner-
ing, hydroplaning, or peak traction characteristics.
J Temperature A, B, C
The temperature grades are A (the highest), B and C, representing the
tire's resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure. The grade C corresponds to a level of perfor-
mance which all passenger car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A represent higher lev-
els of performance on the laboratory test wheel than the minimum re-
quired by law.
WARNING
The temperature grade for this tire is established for a tire that is
properly inflated and not overloaded. Excessive speed, under
inflation, or excessive loading, either separately or in combina-
tion, can cause heat buildup and possible tire failure.
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