Common sense and good driving habits will provide maximum tire life as fast starts, sudden stops and hard cornering can significantly shorten the life of tires. Overloading or incorrect tire pressure should be avoided to reduce tread wear. For optimum tire longevity, keep tires properly inflated and rotate them regularly and check wheel alignment from time to time. Frequent inspection is also necessary especially for bubbles in the tread or sidewall, deep cuts, or underinflation; any tire with sidewall bubbles should be replaced, and deep cuts that reach the cords require discarding the tire. Uneven tread wear patterns can be caused by alignment problems or imbalance. Tires should be rotated periodically so that the tire wears evenly, especially as the front steering/suspension system wears. Unidirectional tires should always roll in the same direction and styled or "mag" wheels with different offsets should not be interchanged in front and rear. The compact spare is for emergency use only, and should not be included in regular tire rotation. For the best satisfaction of these tires, use them in sets of four and do not mix different types. When using radial tires be sure sizes and wheel diameters are used to maintain land clearance and load capacity equal to original tire specifications. Snow tires have a better grip when the weather is slippery as compared to street tires and also municipalities may require snow tires in case of an emergency. It is recommended that you put on four snow tires to be more stable because if you only put snow tires on drive wheels you may experience instability. Snow tires will have an impact on vehicle handling in non-snow situations, requiring a re-learning of the vehicle behavior. Consider buying some additional wheels for snow tires to make seasonal changes and to avoid expensive wheels being damaged. Store tires properly inflated in a cool, dry place, away from direct moisture and concrete floors. Proper tire inflation is important for performance reasons and checking them periodically with a proper tire gauge is recommended. Never exceed the maximum tire pressure embossed on the tire, and maintain recommended pressures for optimum handling and safety. Tread wear indicators can tell when the tires need to be replaced, and a simple penny test can help determine the tread depth. For special wheels, take care not to be damaged, check regularly for cracks or leaks, and clean them with mild cleaning agents to keep them beautiful. Avoid keeping tires standing vertically and be aware of dangers while driving to save the wheels.