Dunlop Grandtrek PT21 . FEATURES AND BENEFITS: All season performance; Enhance controllability; Fuel-efficient drive; Longer service life; Comfortable performance; . OVERVIEW: The Dunlop Grandtrek PT21 is a performance, all season tire made for SUVs.All season performance is promoted with this tire. The asymmetric tread design and the all season compound boost year-round performance. The optimal pattern keeps the road contact all the time, while the compound maintains the rubber flexible in different temperatures. As a result, these elements guarantee the tire's safe driving experience. At the same time, four wide circumferential grooves avoid hydroplaning, by dispersing water and slush from the footprint in wet conditions.The asymmetric tread design and its consistent road contact improve steering responsiveness and driving stability. In other words, the steering response time is faster and more precise to the driver's commands, while the structure is stabilized against the pressure affecting it. At the same time, the unique tread elements strongly grip the road surface for better cornering and maneuvering. As a result, this tread design and road contact boost the driver's control over the vehicle.The model also lengthens its service life. The asymmetric tread design and the durable rubber compound prevent irregular and premature wear along the tread area. The optimal pattern is able to evenly distribute driving pressure across the footprint, while the compound slows the treadwear rate down. The slow and even wear provides a longer-lasting tread life.The tire guarantees a fuel-efficient performance. The special rubber compound lowers the rolling resistance. The rolling resistance is the external pressure affecting the tire, which determines how much energy the vehicle needs to keep the tires in motion. The reduced rolling resistance eases driving pressure off the tires, which decreases the vehicle's fuel consumption and CO2 emissions. The tire ensures a fuel-efficient and environmentally friendly driving experience.The Dunlop Grandtrek PT21 also offers a quiet and comfortable driving experience. In this manner, the asymmetric tread design reduces the road and tread noise levels heard in the vehicle's cabin. On the other hand, the durable rubber compound absorbs the shock of driving, which minimizes vibrations felt by the passengers. This significantly improves the passengers' enjoyable driving experience. Manufacturers recommend changing tires every 10 years. As long as tires are properly stored before they are sold, the year of their manufacture will not shorten their service life.