2004 Ford Freestar Owner's Manual - Page 266

Maintenance and Specifications Note: You may not find this information on all tires because it is not required by federal law. 7. H: Indicates the tire's speed rating. The speed rating denotes the speed at which a tire is designed to be driven for extended periods of time under a standard condition of load and inflation pressure. The tires on your vehicle may operate at different conditions for load and inflation pressure. These speed ratings may need to be adjusted for the difference in conditions. The ratings range from 99 mph (159 km/h) to 186 mph (299 km/h). These ratings are listed in the following chart. Note: You may not find this information on all tires because it is not required by federal law. Letter rating Speed rating - mph (km/h) Q 99 mph (159 km/h) R 106 mph (171 km/h) S 112 mph (180 km/h) T 118 mph (190 km/h) U 124 mph (200 km/h) H 130 mph (210 km/h) V 149 mph (240 km/h) W 168 mph (270 km/h) Y 186 mph (299 km/h) Note: For tires with a maximum speed capability over 149 mph (240 km/h), tire manufacturers sometimes use the letters ZR. For those with a maximum speed capability over 186 mph (299 km/h), tire manufacturers always use the letters ZR. 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 identification codes used for traceability. This information is used to contact customers if a tire defect requires a recall. 9. M+S or M/S: Mud and Snow. or AT: All Terrain. or AS: All Season. 266 2004 Freestar (win) Owners Guide (post-2002-fmt) USA English (fus)