Continental ProContact GX. FEATURES AND BENEFITS: All weather traction; Reduced road noise levels; Vibration free drive; Fuel efficient drive; Enhanced steering responsiveness; . OVERVIEW: The Continental ProContact GX is a touring all season tire model made for passenger vehicles. The tire offers first-rate all weather traction and it grips the road well in all weather conditions. This is due to the special tread pattern that provides great road grip in dry, wet and winter weather. The circumferential tread grooves help resist hydroplaning by evacuating water from below the tire footprint. The better all weather traction increases the tire's safety all year.The tire offers a quiet and comfortable driving experience. The tread pattern and the compound below the tread lower the road noise and vibrations felt in the cabin of the vehicle. The tire compound absorbs the shock of driving and follows the road closely to cancel out the road vibrations. The optimized variable pitch design of the tread cancels out the road and pattern noise while the tires are in transit. The lowered noise and vibration levels make the driving experience more enjoyable.The silica infused tire compound lowers the rolling resistance as it lessens the overall weight of the tire. This reduces the vehicle's fuel consumption and CO2 emissions, making the tire cost and fuel efficient. The vehicle uses less energy to keep the tires in motion which offers an environmentally friendly drive.The ProContact GX is effortless to control. The larger tire footprint and the tread pattern increase the steering responsiveness and accuracy. The tire is quick and precise in its response to the driver's instructions, allowing them to confidently control the tire in differing conditions. This specific tire is marked with AO as it is the original equipment of Audi vehicles. 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.