2014 Nissan GT-R Warranty Information Booklet - Page 35

IMPORTANT TIRE SAFETY INFORMATION1 SPEED SYMBOLS -are shown on the sidewall of some tires. The following table shows the maximum speed corresponding to the symbol. SPEED RATINGS †Speed Rating M N P Q R S T H W Y V* Z** Speed mph 81 87 93 99 106 112 118 130 168 186 149 149 Maximum km/Hr 130 140 150 160 170 180 190 210 270 300 240 240 applicable if tires are underinflated, overloaded, worn out, damaged, altered, improperly repaired, or retreaded. Furthermore, tire speed ratings do not imply that vehicles can be safely driven at the maximum speed for which the tire is rated, particularly under adverse road and weather conditions or if the vehicle has unusual characteristics. Most highway passenger tires that do not have a speed symbol in the sidewall have a maximum speed rating of 105 mph. Light truck highway tires that do not have a speed symbol on the sidewall of the tire have a maximum speed of 87 mph. Some light truck tires may have higher maximum speeds; consult your tire dealer. The speed and other ratings of retreaded tires are assigned by the retreader and voids the original manufacturer's ratings. IMPORTANT: In order to maintain the speed capability of the vehicle, replacement tires must have speed ratings equal to or higher than those fitted as original equipment (as indicated on the vehicle placard or Owner's Manual). If tires with lower speed ratings are fitted, the speed capability of the vehicle will be lowered to the maximum speed capability of the replacement tire as indicated on the above table. Remember...High speed driving can be dangerous and may be damaging to your tires. And...When driving at highway speeds, correct inflation pressure is especially important. Contact the manufacturer of your tires for their position and assistance on the repair of speed-rated tires. When you are replacing tires that have a speed rating, you must replace with tires of the same or higher speed rating if the speed capability of the vehicle is to be maintained. 31 VISUAL INSPECTION INSPECT YOUR TIRES. DO NOT DRIVE ON A DAMAGED TIRE OR WHEEL. Check your tires frequently for scrapes, bulges, separations, cuts, snags, cracks, penetrations or excessive localized wear from hard braking. Also check for abnormal tire wear, particularly on the edges of the tire tread which may be caused by misalignment or underinflation. Impacts can damage the inner portion of the tire without being visible on the outside. If damage can be seen on the tires or wheels, or if you suspect that possible impact damage may have occurred, replace with spare at once and have your tire store or dealer inspect your tires immediately. Use of a damaged tire could result in tire destruction. When inspecting your tires, including the spare, check your air pressures. If your pressure check indicates that one of your tires has lost pressure of two pounds or more, look for signs of penetrations, valve leakage, or wheel damage that may account for the air loss. All tires will wear out faster when subjected to high speeds as well as hard cornering, rapid starts, sudden stops, frequent driving on roads which are in poor condition, and off-road use. Roads with holes and rocks or other objects can damage tires and cause misalignment of your vehicle. When you drive on such roads, drive on them carefully and slowly, and before driving again at normal or highway speeds, examine your tires for any damage, such as cuts, bulges, penetrations, unusual wear patterns, etc. (Continued on next page) *Some V (or VR) rated tires may have a speed capacity of greater than 149 mph (240 km/h). Consult your tire manufacturer for maximum speed ratings if your vehicle capability exceeds this speed. **Z (or ZR) rated tires are designed for use on cars with maximum speed capabilities in excess of 149 mph (240 km/h). Consult your tire manufacturer for maximum speed capabilities. †Although a tire may be speed rated, we do not endorse the operation of any vehicle in an unsafe or unlawful manner. Speed ratings are based on laboratory tests which relate to performance on the road, but are not