Volvo V70 Owner's Manual page 184

2007 Volvo V70
Federal law mandates that tire manufacturers place standardized information on the sidewall of all tires
(see the illustration).
The following information is listed on the tire sidewall:
The tire designation (the following figures are examples of a tire designation):
1. 215: the width of the tire (in millimeters) from sidewall edge to sidewall edge. The larger the number,
the wider the tire.
2. 65: The ratio of the tire's height to its width.
3. R: Radial tire.
4. 15: The diameter of the wheel rim (in inches).
5. 95: The tire's load index. In this example, a load index of 95 equals a maximum load of 1521 lbs (690
kg).
6. H: The tire's speed rating, or the maximum speed at which the tire is designed to be driven for
extended periods of time, carrying a permissible load for the vehicle, and with correct inflation pressure.
For example, H indicates a speed rating of 130 mph (210 km/h).
NOTE: This information may not appear on the tire because it is not required by law.
7. M+S or M/S = Mud and Snow, AT = All Terrain, AS = All Season
8. U.S. DOT Tire Identification Number (TIN): This begins with the letters "DOT" and indicates that the
tire meets all federal standards. The next two numbers or letters are the plant code where it was
manufactured, the next two are the tire size code and the last four numbers represent the week and year
the tire was built. For example, the numbers 317 mean the 31st week of 1997. After 2000 the numbers
go to four digits. For example, 2501 means the 25th week of 2001. The numbers in between are
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