2004 Ford Mustang Owner Guide 3rd Printing - Page 208

Maintenance and Specifications 5. 15: Indicates the wheel or rim diameter in inches. If you change your wheel size, you will have to purchase new tires to match the new wheel diameter. 6. 95: Indicates the tire's load index. It is an index that relates to how much weight a tire can carry. You may find this information in your owner's guide. If not, contact a local tire dealer. 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 208 2004 04- Mustang (mus) Owners Guide (post-2002-fmt) USA English (fus)