Ford 2013 Fusion Hybrid v.1 Manuel d'utilisateur télécharger pdf (Page 284)

Traction AA A B C

WARNING

The traction grade assigned to this

tire is based on straight-ahead

braking traction tests, and does not

include acceleration, cornering,

hydroplaning or peak traction

characteristics.

The traction grades, from highest to lowest

are AA, A, B, and C. The grades represent

the tire’s ability 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.

Temperature A B C

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 cause heat buildup and

possible tire failure.

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 performance

which all passenger car tires must meet

under the Federal Motor Vehicle Safety

Standard No. 139. Grades B and A

represent higher levels of performance on

the laboratory test wheel than the

minimum required by law.

Glossary of Tire Terminology

* Tire label: A label showing the

OE (Original Equipment) tire sizes,

recommended inflation pressure

and the maximum weight the

vehicle can carry.

*Tire Identification Number

(TIN): A number on the sidewall

of each tire providing information

about the tire brand and

manufacturing plant, tire size and

date of manufacture. Also referred

to as DOT code.

*Inflation pressure: A measure

of the amount of air in a tire.

*Standard load: A class of

P-metric or Metric tires designed

to carry a maximum load at 35 psi

[37 psi (2.5 bar) for Metric tires].

Increasing the inflation pressure

beyond this pressure will not

increase the tire’s load carrying

capability.

*Extra load: A class of P-metric

or Metric tires designed to carry a

heavier maximum load at 41 psi

[43 psi (2.9 bar) for Metric tires].

Increasing the inflation pressure

beyond this pressure will not

increase the tire’s load carrying

capability.

*kPa: Kilopascal, a metric unit of

air pressure.

*PSI: Pounds per square inch, a

standard unit of air pressure.

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Wheels and Tires

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