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Tread Wear - ret
Answers
  1. How do I know when I need new tires?
    All tires have tread wear indicator bars molded into the tread. You can see a solid bar of rubber in one or more tread grooves when the tread is worn down to the legal minimum tread depth of 2/32 inch. There are usually at least six places around the tire where the tread depth indicator bars are located. The tire manufacturer indicates the location with a small symbol on the upper sidewall near the edge of the tread. There is also a simple test you can perform to check tread depth on your tires. Place a penny into a tread groove with Lincoln's head upside down and facing you. If you can see the top of Lincoln's head, it's time to visit Central Tire for a new tire. Performance characteristics are also an important consideration in determining tire replacement. Any loss of traction in wet or snow conditions or during cornering or braking should be investigated. Remember that squealing tires during cornering or braking may indicate either low air pressure or a lack of tread depth. Visit Central Tire for a tire inspection if you have concerns about the condition of your tires.
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  2. What should I know about tire rotation?
    Tire rotation is done to maximize tread life by reducing uneven wear and to get all four tires to wear out at the same time. Tires in different wheel positions have different wear patterns. Front-wheel drive, rear-wheel drive, and all- wheel drive vehicles also have different tire wear tendencies. A general rule of thumb is to have tires rotated at 5000 mile intervals unless tire wear characteristics dictate otherwise. The tire rotation sequence can be affected by other factors such as directional tread patterns, directional wheel styles, asymmetric tread patterns, the use of different dimension wheels and/or tires on front and rear wheel positions, or combinations of one or more of these variants. You also may need to reset the Tire Pressure Monitoring System if you vehicle is so equipped (see question 13). Consult the tire professionals at Central Tire to determine the optimum tire maintenance program for your vehicle.
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  3. What factors contribute to uneven wear on my tires?
    Uneven tire wear can be caused by any one or a combination of several factors. The most common causes of uneven tire wear are improper wheel alignment, improper inflation pressure, lack of proper tire rotation, worn parts in the steering or suspension systems, accident damage, road conditions (potholes, curb damage, etc.), and poor vehicle geometry. While poor geometry is engineered and manufactured into some vehicles, all other influences on tire wear are related to proper maintenance and therefore within the control of the consumer. Central Tire believes that regular maintenance at appropriate intervals will extend the life of one’s tires and lower the cost of vehicle operation.
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  4. What creates excessive tire noise?
    Most tire noise is created by uneven tread wear. Noise related to uneven wear is a low-pitched grinding sound similar to that made by a bad wheel bearing. Uneven wear is a result of poor maintenance practices (a lack of tire rotation, improper tire pressures, etc.), wheel alignment problems, worn steering or suspension parts, improper vehicle geometry, or misapplication of the tire. A moderate amount of uneven wear can be eliminated by proper tire rotation. Tire truing, shaving of the high spots of the uneven wear, can also remove moderate amounts of uneven wear. A high-pitched “singing” noise is either a characteristic of aggressive tire design or the effects of the road surface.
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  5. How long should my original equipment tires last?
    This is dependent upon the performance and tire wear characteristics of the vehicle, the type of tires, driving habits, terrain and road surface where the vehicle is normally driven, and tire maintenance practices.
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