Buick SKYLARK 1995 Owner Manual

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The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example. a tire graded lit] 1.vould wear one and a half

{1 H2} Limes as well tin the govern ment course as a tire graded 1(1). The relative performance of tires 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.

Traction - A, B, C

The traction grades, front highest to lowest are: A. B. and C. They represent. the tire’s ahililj.I to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.

Warning: The traction grade assigned to this tire is based on braking (straight-ahead]: traction tests and does not include cornering [turning] traction.


Temperature - fit. 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 hi gh temperature can cause the material of the tire to desenerate and reduce tin: life. and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. lfl'B'. Grades B and A. represent higher levels of performance on the laboratory test wheel than the minimum required by law.

Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed. underinflation. or excessive loading, either separately or in combination. can cant-tr: heat buildup and possible lire failure.

These grades are molded on Lht'. sidewalls of passenger car tires.

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