Ford 2004 Freestar v.3 User Manual download pdf (Page 267)

10. Tire Ply Composition and Material Used: Indicates the number of

plies or the number of layers of rubber-coated fabric in the tire tread and

sidewall. Tire manufacturers also must indicate the ply materials in the

tire and the sidewall, which include steel, nylon, polyester, and others.

11. Maximum Load: Indicates the maximum load in kilograms and

pounds that can be carried by the tire. Refer to the tire label or the

safety certification label, located on the B-Pillar or the driver’s door, for

the correct tire pressure for your vehicle

12. Treadwear, Traction and Temperature Grades

• Treadwear: 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 150

would wear one and one-half (1

⁄

) times as well on the government

course as a tire graded 100.

• Traction: 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: 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.

13. Maximum Permissible Inflation Pressure: Tire manufactures

maximum permissible pressure and/or the pressure at which the

maximum load can be carried by the tire. This pressure is normally

higher than the manufacturer’s recommended cold inflation pressure

which can be found on either the tire label or certification label which is

located on the structure by the trailing edge of the driver’s door or the

edge of the driver’s door. The cold inflation pressure should never be set

lower than the recommended pressure on the vehicle label.

The tire suppliers may have additional markings, notes or warnings such

as standard load, radial tubeless, etc.

2004 Freestar (win)

Owners Guide (post-2002-fmt)

USA English (fus)

Maintenance and Specifications

267

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Ford 2004 Freestar v.3 User Manual Page 267