Bridgestone Turanza EL400-02 RFT (OE) . FEATURES AND BENEFITS: Run flat tire; All weather traction; Longer lasting tread life; Puncture resistance; No deformity; No on-road vibrations; . OVERVIEW: The Bridgestone Turanza EL400-02 RFT (OE) is a touring all season tire manufactured for passenger vehicles. This model is the original equipment tire for select vehicles models. This tire was manufactured using the run flat technology. The tire can support the weight of the vehicle for 50 miles and up to 50 mph after the loss of air pressure. This prevents the driver from being stranded on the side of the road, instead they are able to arrive safely at a location where they can change or repair the tire. Run flat tires are manufactured for vehicles that do not have space for spare tires and they cannot be mixed with regular tires.The special tread pattern enhances the tire's year-round traction and it grips the road well in wet, dry and even winter weather. The tread pattern's circumferential tread grooves eliminate water from below the footprint, resisting dangerous hydroplaning situations. The all weather safety levels of the tire were increased this way.The L. L. Carbon in the tire compound provides additional strength to the tire. On a molecular level the L. L. Carbon creates an interconnecting chain along the tread area, which distributes the driving force across it, preventing irregular wear. The L. L. Carbon, with the special steel belt construction of the tire, also improves the tread's resistance to accidental damage. The continuous even wear on the tire along with its puncture resistance extend the tread life, making the tire usable for a longer period of time.The Turanza EL400-02 RFT (OE) offers a quiet and comfortable driving experience. The tire was made with the O-Bead construction, which is a single continuous stand of cable in the bead of the tire. This improves the tire's uniformity by not letting it deform under the driving pressure, but it also absorbs all the road vibration. As the tire absorbs the road vibrations, the comfort levels of the drive are increased. 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.