Temperature Grades - Dodge DURANGO 2017 Owner's Manual

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566 IF YOU NEED CONSUMER ASSISTANCE

Temperature Grades

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 vehicle tires must meet

under the Federal Motor Vehicle Safety Standard No.

109. Grades B and A represent higher levels of perfor-

mance on the laboratory test wheel, than the minimum

required by law.

The temperature grade for this tire is established for

a tire that is properly inflated and not overloaded.

Excessive speed, under-inflation, or excessive load-

ing, either separately or in combination, can cause

heat buildup and possible tire failure.

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