Ford 2013 Flex v.1 Manuel d'utilisateur télécharger pdf (Page 342)

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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.

342 Wheels and Tires

2013 Flex (471)

Owners Guide gf, 1st Printing

USA (fus)

1 2 ... 337 338 339 340 341 342 343 344 345 346 347 ... 557 558

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Ford 2013 Flex v.1 Manuel d'utilisateur Page 342

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